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Repo creati0n: esp8266_airconditioner.ino

Wazakindjes 1 year ago
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.gitignore

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+.DS_Store
+._.*
+$RECYCLE.BIN
+.*.swp
+*-bak*
+*.ini
+*.conf

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LICENSE

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+GNU AFFERO GENERAL PUBLIC LICENSE 
+Version 3, 19 November 2007
+Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
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+ 13 - 0
README.md

@@ -0,0 +1,13 @@
+# The fuck is this
+This shit is a dankass repository for sharing sketches for use with Arduino-type and compatible microcontrollers (like ESP8266). [=[[=[=[==[[=
+
+# Contrib00tin
+If you wrote some nice haccs then make a pull request and I might merge that shit. ;] Just keep in mind that every sketch should always have its own directory and README file. Said README should include clear information on the setup, but you may assume that people at least know how to do basic things like setting up the IDE and flashing their shit. ;] Some key points:
+* You should explicitly state what microcontroller/dev board you're using, as a sketch may or may not be compatible with comparable b0ards
+* Include information about the wiring etc, so people don't have to look around for ages trying to figure out that shit by themselves
+* In some cases the reason for using a certain component may not be immediately clear, so explain that too
+* Preferably write the README in chronological order, i.e. list components first, then wiring information, followed by configuration, etc
+* You __don't__ need to include info about the actual application (e.g. putting it all together in a case and all that shit), just assume people are working on breadb0ards
+* The sketch should probably work and compile using the Arduino IDE, as that's likely what people will be using lel
+
+Or just look at mein [esp8266_airconditioner shit](./esp8266_airconditioner) for an indication of the necessary inf0.

+ 97 - 0
esp8266_airconditioner/README.md

@@ -0,0 +1,97 @@
+# The fuck is this
+This shit is for physically controlling an air conditioner unit by means of an HTTP/JSON API. This version simply presses the power button because I never need to adjust the temperature etc. My qt remote control "master unit" ([rem0t0](https://gitgud.malvager.net/Wazakindjes/arduino_h4x/rem0t0])) is compatible with it as well. [[==[
+
+Also, since this was my first real pr0ject for this kind of shit, it has as many features as I could think of that have __some__ relevancy. :DDDDD
+
+# Extra features
+* Supports OTA flash
+* HTTPS instead of plain HTTP for the API, __note that this does mean you need to generate a certificate__
+
+# Parts/components:
+* NodeMCU v3 (dev b0ard) w/ ESP8266 onboard
+* DS18B20 temperature sensor (I got the waterproof version but the breadboard one should have the same wiring anyways)
+* TS90A analog micro servo motor
+* 3 LEDs: red, green, yellow (see just below for more inf0z)
+* Apple 1A/5V DC wall outlet to micro USB power supply (__my board has a built-in regulator to bring it down to 3.3V, if yours doesn't then don't use such a power supply__)
+
+The temperature sensor is for measuring the AC's blow temperature, so I can tell if it's actually on or nah. =]]]]]]
+
+I'm also using extra LEDs to indicate a certain status:
+* Red: whenever we encounter an error, keep it turned on for 5 seconds
+* Green: will be turned on when an OTA flash is ongoing
+* Yellow: indicates we received and are processing an HTTP API request, only turns off __after__ the response has been sent
+
+The [JSON API](#json-api) also has commands to manually turn on LEDs, in that case LEDs won't turn off after "automatic" events like above. So let's say you first turn the yellow LED on and then send another request through the API. The yellow LED will first turn on indefinitely, then when you send the second request it will be turned off for 20ms and then turned back on. This is a noticeable blink so you know it's a new request. ;];];];;];]
+
+# Wiring
+Obviously the wire colours __may__ differ for certain models/brands/whatever.
+
+## DS18B20
+Even though it supports parasite power (eliminating the need for connecting the voltage pin), I went with the normal mode setup due to having limited power and driving multiple components. =]]
+
+* Connect black wire to `GND`
+* Connect red wire to `3.3V`
+* Connect yellow wire to `D5` (should be GPIO 14)
+* Put 4.7k resistor between voltage and data (red and yellow)
+
+## TS90A
+This servo has a voltage requirement of between 4.8 and 6 v0lts, some people claim they got it working with 3.3V but in my case the motor would continously buzz after one movement and it would get hot as fuck. xd
+
+* Connect brown wire to `GND`
+* Connect red wire to `Vin` (yes that's supposed to be for input but you can prolly use it in the opposite direction too, __if the board works with direct 5V input__ ;])
+* Connect yellow wire to `D1` (should be GPIO 5)
+
+## LEDs
+There's of course the on-board LED, which should be wired via `D2` (this __should__ correspond to GPIO 4, except for mine it's GPIO 2 apparently???????). The external LEDs are wired as such:
+
+* Connect positive/anode pin (long leg) of __red__ LED to `D7` (should be GPIO 13)
+* Connect anode pin of __green__ LED to `D6` (should be GPIO 12)
+* Connect anode pin of __yellow__ LED to `D2` (should be GPIO 4) -- note that even though this seems to be shared with the on-board LED, this doesn't seem the case for me so I can still control them separately
+* Connect all negative/cathode pins (short legs) to `GND`
+
+## Deep sleep wake-up
+Since the ESP flushes a lot of information when it goes into deep sleep m0de, you need to connect its `WAKE` pin (`D0`, GPIO 16) to the `RST` pin in order to do a timed wake-up. Keep in mind that because it flushes almost everything, you actually __need__ to have the ESP go through a reboot. Otherwise WiFi is down, the API is down, netserial is down, ETCETTECTCTECETC.
+
+# Some firmware notes
+I noticed when I started using HTTPS that the ESP would sometimes shit out an exception and reboot. Apparently that's caused by the default CPU speed of 80 MHz being too l0w for the encryption bullshit and it rips pretty damn hard. As per [this comment on GitHub](https://github.com/esp8266/Arduino/issues/4898#issuecomment-403148287), set the firmware's CPU frequency to 160 MHz. It's technically overclocking but it works fine for me. [=[=[
+
+# Configuration
+The `.ino` file has a marked config section with all the options explained. ;];]];];;]];]];
+
+# The fuck is netserial tho
+While reading the c0dd you may have seen something I call "netserial", which was basically just some haccs done for lulz. It's a way to monitor debugging information over the network, in case of having the ESP in production and not easily available for a true serial connection.
+
+When booting up and after getting an IP address, the ESP will automatically calculate the broadcast address for the network it's in and send messages to it. An example message is `[OTA] Starting sketch flash`).
+
+To receive the broadcast I'm using the `ncat` tool from the `nmap` package, which is __a different program than the default netcat__. It has more options and is the only one I found worked reliably in receiving the messages. I simply slammed the following alias in muh `.bash_profile`: `alias netserial-esp8266-ac="ncat --recv-only -u -v -l -C 192.168.133.255 1338"`
+
+# JSON API
+The API works over HTTPS, using POST requests with URL-encoded parameters and resp0nding with JSON. The sketch has the necessary code for reverting back to plain HTTP, I simply added HTTPS for maximum keks. =]
+
+Since it uses HTTPS, you need to generate certificates and put them in the config. The sketch contains (commented out) code for using intermediate/root certs as well, in case it's ever necessary.
+
+## POST parameters
+* `cmd`: command to execute 0bv fam
+* `arg`: for commands that need it, an argument lmao
+
+## List of API commands
+* `read_temp`: n0 args -- read the current temperature from el sens0r
+* `servo_rotate`: integer argument -- rotate the serv0 the an absolute position (referred to as microseconds, shit's more reliable than simply using degrees)
+* `servo_acbutton`: n0 args (set rotation to `MUHCONF_POS_SERVO_ACBUTTON`)
+* `servo_reset`: n0 args (reset to `MUHCONF_POS_SERVO_NEUTRAL`)
+* `led_on`: string argument -- turn on LED by name (choices: `onboard`, `error`, `flasher`, `http`)
+* `led_off`: same as above lmao
+* `reboot`: n0 args
+* `deepsleep`: n0 args (duration is defined in the config)
+
+## Testing the API w/ cURL
+Obviously substitute the auth token and URL with the ones you've specified in the config section.
+
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=read_temp' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=servo_rotate&arg=100' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=servo_acbutton' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=servo_reset' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=led_on&arg=flasher' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=led_off&arg=flasher' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=reboot' https://esp8266-ac:1339/h4x`
+* `curl -k -X POST -H 'X-Bighecks-Auth: ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023' --data 'cmd=deepsleep' https://esp8266-ac:1339/h4x`

+ 795 - 0
esp8266_airconditioner/esp8266_airconditioner.ino

@@ -0,0 +1,795 @@
+#include <ESP8266WiFi.h>
+#include <ArduinoOTA.h>
+//#include <WiFiUdp.h> // ArduinoOTA includes this itself so may not be necessary to specify em separately
+#include <Servo.h>
+#include <OneWire.h>
+#include <DallasTemperature.h>
+//#include <ESP8266WebServer.h>
+#include <ESP8266WebServerSecure.h>
+
+/*** ========= CONFIG START ========= ***/
+
+/*** SYSTEM ***/
+#define MUHCONF_SYS_HOSTNAME "esp8266-ac" // We'll prolly have multiple ESPs at some point ;];;];];]
+#define MUHCONF_SYS_DEEPSLEEP 5 // Wake from deep sleep after 5 minutes (both in case of non-connecting WiFi as well as the API command for it)
+
+/*** WIFI ***/
+#define MUHCONF_WIFI_SSID "turds"
+#define MUHCONF_WIFI_PASS "gottem"
+#define MUHCONF_WIFI_RETRY 30 // We'll check every second if we're connected for up to this many tries
+
+/*** NETSERIAL ***/
+// For monitoring "serial" output over da netwerk ;]];;]]
+// Some boards may not immediately send out queued packets, so you may need to give it some time (about 10ms for a Lol1n NodeMCU v3)
+// The delay may also not be necessary at all if you're not sending repetitive messages (e.g. in em loop() function), in that case just set it to 0 ;]
+// Note that this does mean a simple delay() will be called and everything else will stall for a bit
+#define MUHCONF_NETSERIAL_POT 1338
+#define MUHCONF_NETSERIAL_DELAY_POSTSEND 0
+//#define MUHCONF_NETSERIAL_DELAY_POSTSEND 10
+#define MUHCONF_NETSERIAL_PRINTF_BUFSIZE 256 // Buffer size for printf()'ing a format string to send over da nets
+
+/*** OTA ***/
+#define MUHCONF_OTA_PASS "bd1b098d8cd6813d532c749b3f44c318" // MD5 y0
+#define MUHCONF_OTA_POT 1337
+
+/*** HTTP SERBUR ***/
+// This is for the "API" server thingy, which uses urlencoded POST parameters and responds w/ JSON
+// Note that we will always respond w/ JSON, even for pages we don't have a valid handler for (i.e. onNotFound())
+#define MUHCONF_HTTP_POT 1339
+#define MUHCONF_HTTP_HEADER_AUTH "X-Bighecks-Auth"
+#define MUHCONF_HTTP_AUTH_SECRET "ec8534d2ff2917903e6071a6049274b3f0f1516780760d8be78c6b9082521023" // Pass this in le POST request w/ the auth header ;];]
+#define MUHCONF_HTTP_ENDPOINT "/h4x" // Gotta do em POST request to https://esp8266-ac:1339/h4x?cmd=<cmd>&arg=<ARG> (arg is optional kek)
+#define MUHCONF_HTTP_JSON_MAXLEN 128 // Maximum length of JSON response string kek (should be smaller than MUHCONF_NETSERIAL_PRINTF_BUFSIZE because we print the full JSON in case of errors ;]];;];])
+
+#define MUHCONF_HTTP_JSON_ERRCODE_GUCCI 0
+#define MUHCONF_HTTP_JSON_ERRCODE_ERROR 1
+
+/*** PINS ***/
+// In order to properly waek from deep sleep, we need to pull on some pins =]
+#define MUHCONF_PIN_WAKEUP_PULLUP 16 // Should be D0 (connect that with the RST pin to do timed wakeups y0)
+
+// On a NodeMCU v3 the on-board LED should be accessible via pin D2 (which corresponds to GPIO 4), except for mine it's GPIO 2 apparently???????
+#define MUHCONF_PIN_LED_ONBOARD 2 // Should be a blue LED, but will usually always be turned on anyways
+#define MUHCONF_PIN_LED_FLASHER 12 // Let's make this green (turns on when a flash is running) -- D6
+#define MUHCONF_PIN_LED_ERROR 13 // And this red lol -- D7
+#define MUHCONF_PIN_LED_HTTP 4 // Yell0 pls (whenever an HTTP request is received and being pr0cessed, e.g. temperature takes a second ;]) -- D2
+
+// Cuz some pins may affect bewt m0de if pullin em high or l0 at the proper time (like just before ESP.restart())
+//#define MUHCONF_PIN_IS_BOOTMODE(x) (x == 0 || x == 2 || x == 15) // Not sure rn tho
+
+#define MUHCONF_PIN_LED_ONBOARD_REVERSE 1 // Cuz apparently pulling low = turn it on??÷¿¿÷÷??
+
+#define MUHCONF_PIN_SERVO 5 // D1
+
+#define MUHCONF_PIN_TEMP 14 // D5
+
+/*** INTERVALS ***/
+// After receiving a reboot command thru the API or after een OTA upd00t, wait 3000 ms before actually rebooting (in order to flush some shit properly)
+// This also protects against booting in the wrong mode by pulling on a pin too soon before the actual restart
+#define MUHCONF_WAIT_REBOOT 3000
+
+#define MUHCONF_WAIT_LED_ERROR 5000 // In case of errors, keep the error LED turned on for 5 seconds
+#define MUHCONF_WAIT_LED_INITCOMPLETE 3000 // When initialisation is complete, turn on all LEDs for a bit ;]
+#define MUHCONF_WAIT_LED_BLINK 20 // Wait 20 ms between led_off and led_on so we can make em blink [==[=[=[
+
+#define MUHCONF_WAIT_SERVO_ROTATION 400 // Wait 400 ms (servo does 60 degrees/0.12 s so let's always wait for a full rotation before going back to neutral ;]];];];]];
+
+#define MUHCONF_WAIT_TEMP_PREREAD 1000 // Temp sensor needs about a second to calibr8 and read that shit l0l
+
+/*** POSITIONS ***/
+#define MUHCONF_POS_SERVO_NEUTRAL 1300
+#define MUHCONF_POS_SERVO_ACBUTTON 500 // Touching the button happens at this point kek
+
+/*** LIMITS ***/
+const unsigned short int limits_servo_rotation[2] = {
+	// Absolute rotational angle in microseconds
+	462, // Zero-degree point (like 12 o' clock or w/e xd)
+	2200 // All the waii around (180 degreez in this case)
+};
+
+/*** TLS shit ***/
+static const char tls_key[] PROGMEM =  R"EOF(
+-----BEGIN PRIVATE KEY-----
+.........PUT YOUR PRIVATE KEY HERE OBV FAMBRO.........
+i76mP++3U4lDWE501kv/xIYR
+-----END PRIVATE KEY-----
+)EOF";
+
+static const char tls_cert[] PROGMEM = R"EOF(
+-----BEGIN CERTIFICATE-----
+.........PUT YOUR ENDPOINT CERTIFICATE HERE OBV FAMBRO.........
+-----END CERTIFICATE-----
+)EOF";
+
+/*static const char tls_cert_intermediate[] PROGMEM = R"EOF(
+-----BEGIN CERTIFICATE-----
+.........PUT YOUR INTERMEDIATE CA CERTIFICATE HERE OBV FAMBRO.........
+-----END CERTIFICATE-----
+)EOF";
+
+static const char tls_cert_root[] PROGMEM = R"EOF(
+-----BEGIN CERTIFICATE-----
+.........PUT YOUR ROOT CA CERTIFICATE HERE OBV FAMBRO.........
+-----END CERTIFICATE-----
+)EOF";*/
+
+/*** ========= CONFIG END ========= ***/
+
+/*** GLOBALS ***/
+extern "C" uint32_t core_version;
+extern "C" const char *core_release;
+
+unsigned short int led_states[] = {
+	0, // Onboard
+	0, // Flasher
+	0, // Error
+	0, // HTTP
+};
+
+unsigned long end_reboot = 0; // To properly delay a reboot without delay() ;]
+
+unsigned long end_led_error = 0; // When this is non-zero, the LED is turned on and we need to turn it off after the interval expires ;]
+unsigned long end_led_init_complete = 0;
+unsigned long end_servo_rotation = 0;
+
+unsigned long end_temp_preread = 0;
+
+unsigned short int ota_lastprogress = 0;
+
+Servo muhservo;
+
+OneWire ow(MUHCONF_PIN_TEMP);
+DallasTemperature muhtemp(&ow);
+
+WiFiUDP netserial;
+IPAddress netserial_targetip(0, 0, 0, 0); // Zero-initialise for ez checkin ;];]];];];];
+
+//ESP8266WebServer muhweb(MUHCONF_HTTP_POT); // Leaving this here in case we need to switch bacc to plain HTTP
+BearSSL::ESP8266WebServerSecure muhweb(MUHCONF_HTTP_POT);
+
+void netserial_printf(const char *pattern, ...) {
+	// qt lil function to dump shit to both the netw0rk and serial console
+	// You may not need this often, e.g. broadcasting flash br0gress is not v useful, should pr0lly just broadcast started/finished/errors (i.e. one-off messages)
+	// Also network broadcasts require a delay so that would stall and most likely fuck up your flash =]]]]]
+	va_list vl;
+	char buf[MUHCONF_NETSERIAL_PRINTF_BUFSIZE + 1];
+	va_start(vl, pattern);
+	vsnprintf(buf, sizeof(buf), pattern, vl);
+	va_end(vl);
+
+	if(netserial_targetip[0]) {
+		netserial.beginPacket(netserial_targetip, MUHCONF_NETSERIAL_POT);
+		netserial.write(buf);
+		netserial.endPacket();
+		if(MUHCONF_NETSERIAL_DELAY_POSTSEND)
+			delay(MUHCONF_NETSERIAL_DELAY_POSTSEND); // Need a little delay to allow sending out the packet
+	}
+	Serial.print(buf);
+}
+
+/*** SETUP FUNCTIONS ***/
+void setup(void) {
+	Serial.begin(115200);
+	Serial.printf("\r\n"); // Make sure the boot mode shit is properly terminated ;]
+
+	// The order here is muy importante ;]
+	setup_sys();
+	setup_led();
+	setup_wifi();
+	setup_netserial();
+	setup_ota();
+	setup_servo();
+	setup_temperature();
+	setup_http();
+
+	netserial_printf("** Initialisation complete y0\r\n");
+
+	// Signal initialisation complete ;];];];];];];]];;];];]
+	led_on(MUHCONF_PIN_LED_ONBOARD, 0); // Won't be turned off by us after this point
+	led_on(MUHCONF_PIN_LED_FLASHER, 0);
+	led_on(MUHCONF_PIN_LED_ERROR, 0);
+	led_on(MUHCONF_PIN_LED_HTTP, 0);
+
+	end_led_init_complete = millis() + MUHCONF_WAIT_LED_INITCOMPLETE;
+}
+
+void setup_sys(void) {
+	unsigned int chip_realsize, chip_size, chip_speed;
+
+	// Set system parameters here
+	Serial.printf("** Initialising system parameters fam\r\n");
+
+	Serial.printf("\t- Setting GPIO pin %d as WAKEUP_PULLUP\r\n", MUHCONF_PIN_WAKEUP_PULLUP);
+	pinMode(MUHCONF_PIN_WAKEUP_PULLUP, WAKEUP_PULLUP);
+
+	Serial.printf("\t- Hostname: %s\r\n", MUHCONF_SYS_HOSTNAME);
+	wifi_station_set_hostname(MUHCONF_SYS_HOSTNAME);
+
+	// Also print some system shit for keks
+	Serial.printf("** Getting s0em system parameters fam\r\n");
+	Serial.printf("\t- Last reset reason: %s\r\n", ESP.getResetInfo().c_str());
+	Serial.printf("\t- Core version: 0x%08x\r\n", core_version);
+	Serial.printf("\t- Core release: %s\r\n", (core_release != NULL ? core_release : "NULL"));
+	Serial.printf("\t- SDK version: %s\r\n", ESP.getSdkVersion());
+	Serial.printf("\t- Boot version: %d\r\n", ESP.getBootVersion());
+	Serial.printf("\t- Boot mode: %d\r\n", ESP.getBootMode());
+	Serial.printf("\t- CPU frequency: %d MHz\r\n", ESP.getCpuFreqMHz());
+
+	Serial.printf("\t- Flash chip ID: 0x%08x\r\n", ESP.getFlashChipId());
+	Serial.printf("\t- Flash chip vendor ID: 0x%08x\r\n", ESP.getFlashChipVendorId());
+
+	chip_size = ESP.getFlashChipSize();
+	Serial.printf("\t- Flash chip size: %d bytes (%d megabutts)\r\n", chip_size, (chip_size / 1024 / 1024));
+
+	chip_realsize = ESP.getFlashChipRealSize();
+	Serial.printf("\t- Flash chip real size: %d bytes (%d megabutts)\r\n", chip_realsize, (chip_realsize / 1024 / 1024));
+
+	chip_speed = ESP.getFlashChipSpeed();
+	Serial.printf("\t- Flash chip speed: %d Hz (%d MHz)\r\n", chip_speed, (chip_speed / 1000 / 1000));
+
+	Serial.printf("\t- Flash chip mode: %d\r\n", ESP.getFlashChipMode());
+}
+
+void setup_led(void) {
+	// Set up LEDs lol
+	Serial.printf("** Initialising LEDs y0\r\n");
+	Serial.printf("\t- On-board LED (pin %d)\r\n", MUHCONF_PIN_LED_ONBOARD);
+	pinMode(MUHCONF_PIN_LED_ONBOARD, OUTPUT);
+	led_off(MUHCONF_PIN_LED_ONBOARD, 0, 0); // Make sure LED starts turned off obviously ;]
+
+	Serial.printf("\t- Flasher LED (pin %d)\r\n", MUHCONF_PIN_LED_FLASHER);
+	pinMode(MUHCONF_PIN_LED_FLASHER, OUTPUT);
+	led_off(MUHCONF_PIN_LED_FLASHER, 0, 0);
+
+	Serial.printf("\t- Error LED (pin %d)\r\n", MUHCONF_PIN_LED_ERROR);
+	pinMode(MUHCONF_PIN_LED_ERROR, OUTPUT);
+	led_off(MUHCONF_PIN_LED_ERROR, 0, 0);
+
+	Serial.printf("\t- HTTP LED (pin %d)\r\n", MUHCONF_PIN_LED_HTTP);
+	pinMode(MUHCONF_PIN_LED_HTTP, OUTPUT);
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+}
+
+void setup_wifi(void) {
+	// Set up WiFi imo tbh
+	unsigned short int i;
+
+	Serial.printf("** Initialising WiFi lol\r\n");
+	WiFi.mode(WIFI_STA);
+	WiFi.begin(MUHCONF_WIFI_SSID, MUHCONF_WIFI_PASS);
+	Serial.printf("\t- Connecting to: %s", MUHCONF_WIFI_SSID);
+	for(i = 0; i < MUHCONF_WIFI_RETRY && WiFi.status() != WL_CONNECTED; i++) {
+		Serial.printf(".");
+		delay(1000);
+	}
+	Serial.printf("\r\n");
+
+	if(WiFi.status() != WL_CONNECTED) {
+		Serial.printf("** WiFi = rip lol, going into deep sleep for %d minute%s before restarting y0\r\n", MUHCONF_SYS_DEEPSLEEP, (MUHCONF_SYS_DEEPSLEEP > 1 ? "s" : ""));
+		ESP.deepSleep(MUHCONF_SYS_DEEPSLEEP * 60 * 1000 * 1000); // Convert minutes to microseconds ;]
+		ESP.restart(); // Just in case l0l
+		return; // ditt0
+	}
+
+	// n0t broadcasting the local IP here cuz if we wait until _after_ the netserial has been initialised, we can also broadcast that information ;];];;];];];
+	Serial.printf("\t- Connected y0\r\n");
+}
+
+void setup_netserial(void) {
+	// Ayyyy black magic ;];];];];]];];];];
+	// Most of this function involves dynamically calculating the broadcast address based on whatever fuckin network you're connected to
+	// Also this only works with IPv4 because using v6 for LANs is pretty fucking retarded
+	unsigned int ip_bits, subnet_bits, broadcast_bits;
+	IPAddress subnet;
+
+	Serial.printf("** Initialising network serial console bruh\r\n");
+	netserial_targetip = WiFi.localIP();
+	subnet = WiFi.subnetMask();
+
+	ip_bits = (netserial_targetip[0] << 24) + (netserial_targetip[1] << 16) + (netserial_targetip[2] << 8) + netserial_targetip[3];
+	subnet_bits = ((subnet[0] << 24) + (subnet[1] << 16) + (subnet[2] << 8) + subnet[3]) ^ 0xFFFFFFFF;
+	broadcast_bits = (ip_bits | subnet_bits);
+
+	netserial_targetip[0] = (broadcast_bits >> 24) & 0xFF;
+	netserial_targetip[1] = (broadcast_bits >> 16) & 0xFF;
+	netserial_targetip[2] = (broadcast_bits >> 8) & 0xFF;
+	netserial_targetip[3] = broadcast_bits & 0xFF;
+
+	netserial.begin(MUHCONF_NETSERIAL_POT);
+
+	netserial_printf("\t- IP address: %s\r\n", WiFi.localIP().toString().c_str());
+	netserial_printf("\t- Broadcast address: %s\r\n", netserial_targetip.toString().c_str());
+}
+
+void setup_ota(void) {
+	netserial_printf("** Initialising OTA shit\r\n");
+	ArduinoOTA.setHostname(MUHCONF_SYS_HOSTNAME); // May not be necessary, but let's =]
+	ArduinoOTA.setPort(MUHCONF_OTA_POT);
+	ArduinoOTA.setPasswordHash(MUHCONF_OTA_PASS);
+	ArduinoOTA.setRebootOnSuccess(false); // Let's do a manual reb00t pls
+
+	ArduinoOTA.onStart([]() {
+		if(ArduinoOTA.getCommand() != U_FLASH) {
+			// U_SPIFFS for filesystem lol
+			netserial_printf("** [ERROR] [OTA] Received unsupported command (only flashing of sketches is supported at the moment)\r\n");
+			return;
+		}
+
+		//SPIFFS.end() // Just leaving this here in case we ever need a filesystem lmao
+		netserial_printf("[OTA] Starting sketch flash\r\n");
+		led_off(MUHCONF_PIN_LED_FLASHER, 0, 0); // Blink that shit just in case =]
+		delay(MUHCONF_WAIT_LED_BLINK);
+		led_on(MUHCONF_PIN_LED_FLASHER, 0);
+	});
+
+	ArduinoOTA.onEnd([]() {
+		netserial_printf("[OTA] Flashing complete lol, initiating reb00t\r\n");
+		rebootem();
+	});
+
+	ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+		unsigned short int newprogress = (progress / (total / 100));
+		if(ota_lastprogress != newprogress) {
+			Serial.printf("[OTA] Flash progress: %u%%\r\n", newprogress);
+			ota_lastprogress = newprogress;
+		}
+	});
+
+	ArduinoOTA.onError([](ota_error_t errorcode) {
+		netserial_printf("[ERROR] [OTA] Error %d: ", errorcode);
+		switch(errorcode) {
+			case OTA_AUTH_ERROR:
+				netserial_printf("Auth failed");
+				break;
+			case OTA_BEGIN_ERROR:
+				netserial_printf("Begin failed");
+				break;
+			case OTA_CONNECT_ERROR:
+				netserial_printf("Connect failed");
+				break;
+			case OTA_RECEIVE_ERROR:
+				netserial_printf("Receive failed");
+				break;
+			case OTA_END_ERROR:
+				netserial_printf("End failed");
+				break;
+			default:
+				netserial_printf("Unknown error");
+				break;
+		}
+		netserial_printf("\r\n");
+		led_on_error_interval();
+	});
+	ArduinoOTA.begin();
+	netserial_printf("\t- Should b gucci mane\r\n");
+}
+
+void setup_servo(void) {
+	netserial_printf("** Initialising serv0 kek\r\n");
+	// Reset to a neutral position ;];
+	muhservo.attach(MUHCONF_PIN_SERVO);
+	servo_rotate(MUHCONF_POS_SERVO_NEUTRAL);
+}
+
+void setup_temperature(void) {
+	netserial_printf("** Initialising temperature sensor imo tbh\r\n");
+	muhtemp.begin();
+}
+
+void setup_http(void) {
+	const char *headers[] = { MUHCONF_HTTP_HEADER_AUTH };
+	size_t num_header;
+	BearSSL::X509List *tls_chain;
+
+	netserial_printf("** Initialising HTTP serbur lel\r\n");
+	num_header = (sizeof(headers) / sizeof(char *));
+	muhweb.on(MUHCONF_HTTP_ENDPOINT, http_handle_cmd);
+	muhweb.onNotFound(http_handle_404);
+	muhweb.collectHeaders(headers, num_header);
+
+	tls_chain = new BearSSL::X509List(tls_cert);
+	//tls_chain->append(tls_cert_intermediate);
+	//tls_chain->append(tls_cert_root);
+	muhweb.getServer().setRSACert(tls_chain, new BearSSL::PrivateKey(tls_key));
+
+	muhweb.begin();
+}
+
+/*** CLEANUP/SHUTDOWN FUNCTIONS **/
+// WiFi and netserial don't have cleanup functions cuz we'll keep using that until we actually shut down ;]
+// Some classes may not have proper shutdown methods, so let's just use the destruct0r where they're not [==[=[=[=[=[
+// For e.g. the web server this means that requests will immediately fail since our listening s0cket is gone
+void cleanup_led(void) {
+	// Not really a cleanup tho lel
+	led_on(MUHCONF_PIN_LED_ONBOARD, 0); // Make sure onboard is on so we know the ESP is actually still powered etc
+	led_off(MUHCONF_PIN_LED_FLASHER, 0, 0); // Turn off the rest in advance doe
+	led_off(MUHCONF_PIN_LED_ERROR, 0, 0);
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+}
+
+void cleanup_ota(void) {
+	// OTA shit is a gl0bal instance so clean up the entire fuckin thing
+	netserial_printf("** Cleaning up OTA shit\r\n");
+	ArduinoOTA.~ArduinoOTAClass();
+}
+
+void cleanup_servo(void) {
+	netserial_printf("** Cleaning up serv0 kek\r\n");
+	muhservo.detach();
+}
+
+void cleanup_temperature(void) {
+	netserial_printf("** Cleaning up temperature sensor imo tbh\r\n");
+	muhtemp.~DallasTemperature();
+	ow.~OneWire();
+}
+
+void cleanup_http(void) {
+	netserial_printf("** Cleaning up HTTP serbur lel\r\n");
+	muhweb.~ESP8266WebServerTemplate();
+}
+
+/*** LOOP FUNCTIONS ***/
+void loop(void) {
+	unsigned long mstime;
+
+	mstime = millis();
+
+	// Checking this interval outside of all the other loop_* functions cuz we need to do a "blocking" reboot
+	if(end_reboot > 0) {
+		if(mstime >= end_reboot) {
+			netserial_printf("** Ayy reb00ting na0\r\n");
+			ESP.restart();
+		}
+		return;
+	}
+
+	loop_ota();
+	loop_http();
+	loop_intervals(mstime);
+}
+
+void loop_ota(void) {
+	ArduinoOTA.handle();
+}
+
+void loop_http(void) {
+	muhweb.handleClient();
+}
+
+void loop_intervals(unsigned long mstime) {
+	// Check for expiring intervals ;];;];]];;];]];];];];
+	float tempc;
+	char tempc_str[13]; // Prolly don't need more than a precision of 0.0000000001 =]
+
+	if(end_led_init_complete > 0 && mstime >= end_led_init_complete) {
+		// Don't bother checking the current states here because it's impossibru to connect w/ the API before dis =]
+		led_off(MUHCONF_PIN_LED_FLASHER, 0, 0);
+		led_off(MUHCONF_PIN_LED_ERROR, 0, 0);
+		led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+		end_led_init_complete = 0;
+	}
+
+	if(end_led_error > 0 && mstime >= end_led_error) {
+		led_off(MUHCONF_PIN_LED_ERROR, 0, 1); // If LED was manually turned on (thru em API) then check the current state before actually turning it off lol
+		end_led_error = 0;
+	}
+
+	if(end_servo_rotation > 0 && mstime >= end_servo_rotation) {
+		// After pressing em button, just reset to neutral l0l
+		servo_rotate(MUHCONF_POS_SERVO_NEUTRAL);
+		end_servo_rotation = 0;
+	}
+
+	if(end_temp_preread > 0 && mstime >= end_temp_preread) {
+		tempc = temp_endread();
+		end_temp_preread = 0;
+		snprintf(tempc_str, sizeof(tempc_str), "%f", tempc);
+		http_send_json(MUHCONF_HTTP_JSON_ERRCODE_GUCCI, tempc_str);
+		led_off(MUHCONF_PIN_LED_HTTP, 0, 1);
+	}
+}
+
+/*** UTILITY/HELPER FUNCTIONS ***/
+void rebootem(void) {
+	// Let's not reset the timer every time (prolly can't happen anyways but w/e =])
+	if(end_reboot > 0)
+		return;
+
+	// Obviously we're gonna close em services in the reversed order of the setup_* functions ;]
+	cleanup_http();
+	cleanup_temperature();
+	cleanup_servo();
+	cleanup_ota();
+	cleanup_led();
+
+	end_reboot = millis() + MUHCONF_WAIT_REBOOT;
+}
+
+void led_off(unsigned short int pin, unsigned short int update_state, unsigned short int check_state) {
+	// check_state is set to 0 in order to blink a LED in case of quick successive commands =]
+	// Otherwise only turn LED off if nothing has it turned on ;];;];]
+
+	if(update_state)
+		led_update_state(pin, 0);
+
+	if(check_state && led_check_state(pin) != 0)
+		return;
+
+	if(pin == MUHCONF_PIN_LED_ONBOARD && MUHCONF_PIN_LED_ONBOARD_REVERSE)
+		digitalWrite(pin, HIGH);
+	else
+		digitalWrite(pin, LOW);
+}
+
+void led_on(unsigned short int pin, unsigned short int update_state) {
+	if(update_state)
+		led_update_state(pin, 1);
+
+	if(pin == MUHCONF_PIN_LED_ONBOARD && MUHCONF_PIN_LED_ONBOARD_REVERSE)
+		digitalWrite(pin, LOW);
+	else
+		digitalWrite(pin, HIGH);
+}
+
+signed short int led_get_state_index(unsigned short pin) {
+	switch(pin) {
+		case MUHCONF_PIN_LED_ONBOARD:
+			return 0;
+
+		case MUHCONF_PIN_LED_FLASHER:
+			return 1;
+
+		case MUHCONF_PIN_LED_ERROR:
+			return 2;
+
+		case MUHCONF_PIN_LED_HTTP:
+			return 3;
+
+		default:
+			break;
+	}
+
+	return -1; // Not doing this from the default case, to silence warnings ;]
+}
+
+unsigned short int led_check_state(unsigned short int pin) {
+	signed short int led_i;
+
+	led_i = led_get_state_index(pin);
+	if(led_i < 0)
+		return 0;
+
+	return led_states[led_i];
+}
+
+void led_update_state(unsigned short int pin, unsigned short int state) {
+	signed short int led_i;
+
+	led_i = led_get_state_index(pin);
+	if(led_i < 0)
+		return;
+
+	led_states[led_i] = state;
+}
+
+void led_on_error_interval(void) {
+	// In case we encounter another error before the first has been "cleared", blink the LED lol
+	led_off(MUHCONF_PIN_LED_ERROR, 0, 0);
+	delay(MUHCONF_WAIT_LED_BLINK);
+	led_on(MUHCONF_PIN_LED_ERROR, 0);
+	end_led_error = millis() + MUHCONF_WAIT_LED_ERROR;
+}
+
+void servo_rotate(unsigned short int us) {
+	if(us < limits_servo_rotation[0])
+		us = limits_servo_rotation[0];
+	else if(us > limits_servo_rotation[1])
+		us = limits_servo_rotation[1];
+	muhservo.writeMicroseconds(us);
+}
+
+void servo_press_acbutton(void) {
+	servo_rotate(MUHCONF_POS_SERVO_ACBUTTON);
+	end_servo_rotation = millis() + MUHCONF_WAIT_SERVO_ROTATION;
+}
+
+void temp_initread(void) {
+	muhtemp.requestTemperatures();
+	end_temp_preread = millis() + MUHCONF_WAIT_TEMP_PREREAD;
+}
+
+float temp_endread(void) {
+	return muhtemp.getTempCByIndex(0);
+}
+
+void http_handle_cmd(void) {
+	String auth, cmd, arg;
+	const char *arg_str; // Cuz am need to convert the shitty String to char =]
+	unsigned short int arg_int;
+	char sendbuf[64]; // For eventually passing shit to http_send_json() lmao
+	unsigned short int i; // To iterate over a string in order to make sure integer args are actually integers lol
+	unsigned short int iscmd_reboot, iscmd_deepsleep;
+	unsigned short int iscmd_servo_acbutton, iscmd_servo_rotate, iscmd_servo_reset;
+	unsigned short int iscmd_led_on, iscmd_led_off;
+	unsigned short int pin_led;
+
+	if(end_led_init_complete) // Still waiting for the initialisation complete signal to clear
+		return;
+
+	// In case we receive another command before the first has been pr0cessed, blink the LED imo tbh
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+	delay(MUHCONF_WAIT_LED_BLINK);
+	led_on(MUHCONF_PIN_LED_HTTP, 0);
+
+	if(!muhweb.hasHeader(MUHCONF_HTTP_HEADER_AUTH) || (auth = muhweb.header(MUHCONF_HTTP_HEADER_AUTH)) != MUHCONF_HTTP_AUTH_SECRET) {
+		led_on_error_interval();
+		http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Authorisation failed lol");
+		return;
+	}
+
+	if(!muhweb.hasArg("cmd") || (cmd = muhweb.arg("cmd")).length() == 0) {
+		led_on_error_interval();
+		http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Missing required parameter 'cmd' y0");
+		return;
+	}
+
+	// First, check for commands without ne args ;];
+	iscmd_reboot = iscmd_deepsleep = 0;
+	iscmd_servo_acbutton = iscmd_servo_rotate = iscmd_servo_reset = 0;
+	iscmd_led_on = iscmd_led_off = 0;
+	pin_led = 0;
+	arg_int = 0;
+
+	if(cmd == "read_temp") {
+		// Special case cuz we need to wait a bit for the sens0r to calibr8
+		temp_initread();
+		return;
+	}
+
+	else if((iscmd_reboot = (cmd == "reboot")))
+		snprintf(sendbuf, sizeof(sendbuf), "Ayy initiating reb00t");
+
+	else if((iscmd_deepsleep = (cmd == "deepsleep")))
+		snprintf(sendbuf, sizeof(sendbuf), "Ayy going into deep sleep for %d minute%s", MUHCONF_SYS_DEEPSLEEP, (MUHCONF_SYS_DEEPSLEEP > 1 ? "s" : ""));
+
+	else if((iscmd_servo_acbutton = (cmd == "servo_acbutton")))
+		snprintf(sendbuf, sizeof(sendbuf), "Pressing AC button l0l (%d microseconds)", MUHCONF_POS_SERVO_ACBUTTON);
+
+	else if((iscmd_servo_reset = (cmd == "servo_reset")))
+		snprintf(sendbuf, sizeof(sendbuf), "Resetting servo to neutral fam (%d microseconds)", MUHCONF_POS_SERVO_NEUTRAL);
+
+	// Then, commands w/ 1 arg
+	else if((iscmd_servo_rotate = (cmd == "servo_rotate")) || (iscmd_led_on = (cmd == "led_on")) || (iscmd_led_off = (cmd == "led_off"))) {
+		if(!muhweb.hasArg("arg") || (arg = muhweb.arg("arg")).length() == 0) {
+			led_on_error_interval();
+			http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Missing required parameter 'arg' y0");
+			return;
+		}
+
+		arg_str = arg.c_str();
+
+		if(iscmd_servo_rotate) {
+			for(i = 0; i < strlen(arg_str); i++) {
+				if(!isdigit(arg_str[i])) {
+					led_on_error_interval();
+					http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Invalid value for parameter 'arg' y0 (must be an integer)");
+					return;
+				}
+			}
+
+			arg_int = arg.toInt();
+			snprintf(sendbuf, sizeof(sendbuf), "Rotating to %d microseconds", arg_int);
+		}
+
+		else {
+			if(arg == "onboard")
+				pin_led = MUHCONF_PIN_LED_ONBOARD;
+
+			else if(arg == "flasher")
+				pin_led = MUHCONF_PIN_LED_FLASHER;
+
+			else if(arg == "error")
+				pin_led = MUHCONF_PIN_LED_ERROR;
+
+			else if(arg == "http")
+				pin_led = MUHCONF_PIN_LED_HTTP;
+
+			else {
+				http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Invalid value for parameter 'arg' y0 (unknown LED name)");
+				return;
+			}
+
+			snprintf(sendbuf, sizeof(sendbuf), "LED %s = %s", arg_str, (iscmd_led_on ? "ON" : "OFF"));
+		}
+	}
+
+	// Top kekked
+	else {
+		led_on_error_interval();
+		http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "Unknown command lol");
+		led_off(MUHCONF_PIN_LED_HTTP, 0, 1);
+		return;
+	}
+
+	// Now finally flush the goddamn command [==[=[=[=[=[
+	http_send_json(MUHCONF_HTTP_JSON_ERRCODE_GUCCI, sendbuf);
+
+	if(iscmd_reboot) {
+		netserial_printf("** %s\r\n", sendbuf);
+		rebootem();
+	}
+
+	else if(iscmd_deepsleep) {
+		netserial_printf("** %s\r\n", sendbuf);
+		led_off(MUHCONF_PIN_LED_ONBOARD, 0, 0);
+		led_off(MUHCONF_PIN_LED_FLASHER, 0, 0);
+		led_off(MUHCONF_PIN_LED_ERROR, 0, 0);
+		led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+		ESP.deepSleep(MUHCONF_SYS_DEEPSLEEP * 60 * 1000 * 1000);
+		ESP.restart(); // Just in case l0l
+		return; // ditt0
+	}
+
+	else if(iscmd_servo_rotate)
+		servo_rotate(arg_int);
+
+	else if(iscmd_servo_acbutton)
+		servo_press_acbutton();
+
+	else if(iscmd_servo_reset)
+		servo_rotate(MUHCONF_POS_SERVO_NEUTRAL);
+
+	else if(iscmd_led_on || iscmd_led_off) {
+		if(iscmd_led_on)
+			led_on(pin_led, 1);
+		else
+			led_off(pin_led, 1, 0);
+	}
+
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 1);
+}
+
+void http_handle_404(void) {
+	if(end_led_init_complete) // Still waiting for the initialisation complete signal to clear
+		return;
+
+	// Let's just blink the HTTP LED to indicate we at least did something w/ HTTP xd
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 0);
+	delay(MUHCONF_WAIT_LED_BLINK);
+	led_on(MUHCONF_PIN_LED_HTTP, 0);
+
+	led_on_error_interval();
+
+	http_send_json(MUHCONF_HTTP_JSON_ERRCODE_ERROR, "ayy 404 br0heme");
+
+	led_off(MUHCONF_PIN_LED_HTTP, 0, 1);
+}
+
+void http_send_json(unsigned short int errcode, const char *data) {
+	// Don't forget to termin8 the JSON strings w/ \r\n ;]
+	char jayson[MUHCONF_HTTP_JSON_MAXLEN + 1];
+
+	if(strchr(data, '"')) {
+		netserial_printf("[HTTP] JSON contains a \" which is not supported lmao\r\n");
+		netserial_printf("[HTTP] %s\r\n", data);
+		snprintf(jayson, sizeof(jayson), "{\"code\":%d,\"data\":\"JSON contains a \\\" which is not supported lmao\"}\r\n", MUHCONF_HTTP_JSON_ERRCODE_ERROR);
+		led_on_error_interval();
+	}
+
+	else {
+		snprintf(jayson, sizeof(jayson), "{\"code\":%d,\"data\":\"%s\"}\r\n", errcode, data);
+
+		// Check for malformed JSON (i.e. truncated)
+		if(jayson[strlen(jayson) - 3] != '}') {
+			netserial_printf("[HTTP] Response length would exceed maximum lol (should've been <= %d)\r\n", MUHCONF_HTTP_JSON_MAXLEN);
+			netserial_printf("[HTTP] %s\r\n", data);
+			snprintf(jayson, sizeof(jayson), "{\"code\":%d,\"data\":\"Response length would exceed maximum lol (should've been <= %d)\"}\r\n", MUHCONF_HTTP_JSON_ERRCODE_ERROR, MUHCONF_HTTP_JSON_MAXLEN);
+			led_on_error_interval();
+		}
+	}
+
+	muhweb.sendHeader("Cache-Control", "no-cache");
+	muhweb.sendHeader("Connection", "close");
+	muhweb.send(200, "application/json", jayson);
+}