This project design to mine Duino-Coin using an Esp8266/Esp32 as a master and Arduino as a slave.

Using the I2C communication to connect all the boards and make a scalable communication between the master and the slaves.

DuinoCoinI2C Version 2.6

All Slaves have the same code and should select the I2C Address automatically.

• DuinoCoin (Handle the Ducos1a hash work)
• ArduinoUniqueID (Handle the chip ID)
• StreamJoin (StreamString for AVR)

The I2C Address on the Arduino is automatically updated when the board starts, if an Address already exists on the I2C bus the code finds another Address to use.

The master requests the job on the DuinoCoin server and sends the work to the slave (Arduino).

After the job is done, the slave sends back the response to the master (Esp8266/Esp32) and then sends back to the DuinoCoin server.

• ArduinoJson (Request Pool Version 2.6)
• ESPAsyncWebServer (ESPAsyncWebServer)
  • ESPAsyncTCP (ESP8266)
  • AsyncTCP (ESP32)

The code supports 10 clients and can be changed on the define:

#define CLIENTS 10

Connect the pins of the Esp8266 or Esp32 on the Arduino like the table/images below, use a Logic Level Converter to connect between the ESP and Arduino.

ericddm shared this amazing pcb!

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