====== Webduino Smart ======

<WRAP round box 60%>
===== Goals =====
  * [OK] Flash Webduino Smart with different IDEs
  * [OK] Check Components : pins, photocell, RGB LED, button
  * [OK?] Use OTA
</WRAP>

===== Description =====

  * [[https://webduino.io/en/tutorials/smart-01-information.html|Official Intro]]
  * Webduino Smart USB port is only used to power the board, not for upload and monitoring
  * The chip is labeled ESP8266MOD by AI Thinker, in fact it is an ESP-12F, same as Wemos D1
  * The board includes a photocell, an RGB led and a button.
  * [[https://www.programmersought.com/article/1565534775/|Unofficial tutorial in ~english]], with how to flash Webduino Smart with FTDI
  * The Webduino Smart is extremely similar to the "[[https://vimalb.github.io/IoT-ESP8266-Starter/Witty/info.html|(Gizwits) Witty Cloud]]" board, one is probably a clone of the other (same pin number for on-board components). The Witty Cloud board includes an FTDI daughter board which simplifies development, this daughter board may even be compatible with the Webduino Smart.


===== Wiring and flashing =====

Plug the Webduino Smart using an FTDI **3.3v** module. The Webduino Smart and the FTDI must be powered. The Webduino Smart is powered through its micro USB port.

           Tx     Rx    
  ftdi     Rx     Tx     Webduino
           Gnd    Gnd

{{:projets:fuz:webduino_serial_pinout.jpg?400|}}

For **flashing**, on Webduino Smart connect GPIO 0 to GND. (RGB goes light blue)  

For **rebooting**, on Webduino Smart connect RST to GND

Flashing usual sequence is: 
  - Set flash position (GPIO0 on GND)
  - Power the FTDI and the Webduino
  - (RGB goes light blue) Disconnect GPIO 0
  - Upload sketch... Webduino Smart should restart in normal mode.
  - Or disconnect GPIO 0 and restart using RST or Webduino Smart power

===== Arduino IDE =====

Select Board :  **"Generic ESP8266 Module"**

===== Platformio =====

Got it to work as a Wemos d1!

    [env:d1]
    platform = espressif8266
    board = d1
    framework = arduino

===== Components =====

I got blink sketch using LED_BUILTIN (2)

==== RGB LED ====

<code c++>
/***
   RGB sketch for webduino smart
   Board:   ESP8266

*/

#include <Arduino.h>

// according to https://webduino.io/en/tutorials/smart-01-information.html#on-board-components-and-pins
#define GPIO_GREEN_RGB 12
#define GPIO_BLUE_RGB  13
#define GPIO_RED_RGB 15
#define GPIO_MICRO_SWITCH_BUTTON 4

// https://create.arduino.cc/projecthub/muhammad-aqib/arduino-rgb-led-tutorial-fc003e
void RGB_color(int red_light_value, int green_light_value, int blue_light_value) {
  analogWrite(GPIO_RED_RGB, red_light_value);
  analogWrite(GPIO_GREEN_RGB, green_light_value);
  analogWrite(GPIO_BLUE_RGB, blue_light_value);
}

void showColor(int color) {
  Serial.printf("Color %d\n", color);
  switch (color) {
    case 0:
      RGB_color(255, 0, 0); // Red
      break;
    case 1:
      RGB_color(0, 255, 0); // Green
      break;
    case 2:
      RGB_color(255, 255, 125); // Raspberry
      break;
    case 3:
      RGB_color(0, 255, 255); // Cyan
      break;
    case 4:
      RGB_color(255, 0, 255); // Magenta
      break;
    case 5:
      RGB_color(255, 255, 0); // Yellow
      break;
    case 6:
      RGB_color(255, 255, 255); // White
    default:
      RGB_color(0, 0, 0); // Disabled
  }
}

void setup() {
  Serial.begin(115200);
  delay(10);
  Serial.println();
  Serial.println(F("Webduino smart RGB sketch: push the micro switch button to loop over colors"));

  pinMode(GPIO_GREEN_RGB, OUTPUT);
  pinMode(GPIO_BLUE_RGB, OUTPUT);
  pinMode(GPIO_RED_RGB, OUTPUT);
}

int color = 0;
void loop() {
  if (digitalRead(GPIO_MICRO_SWITCH_BUTTON) == LOW) {
    Serial.println(F("Button pressed"));
    color = ((color + 1) % 7);
    showColor(color);
    delay(200);
  }
}
</code>

==== Photocell ====
<code c++>

/***
   Photocell sketch for webduino smart
   Board:   ESP8266

*/

#include <Arduino.h>

// according to https://webduino.io/en/tutorials/smart-01-information.html#on-board-components-and-pins
#define GPIO_PHOTOCELL A0
#define GPIO_MICRO_SWITCH_BUTTON 4

void setup() {
  Serial.begin(115200);
  delay(10);
  Serial.println();
  Serial.println(F("Webduino photocell sketch: push the micro switch button to read photocell values"));
}


void loop() {
  if (digitalRead(GPIO_MICRO_SWITCH_BUTTON) == LOW) {
    Serial.println(analogRead(GPIO_PHOTOCELL)); // values go from 0 for complete darkness to 1024 for full bright light
  }
}
</code>
===== OTA =====
See https://github.com/esp8266/Arduino/tree/master/libraries/ArduinoOTA/examples

This was randomly working for me, maybe implement [[http://www.csshl.net/content/esp8266-aggiornamenti-ota|this workaround]]?