Getting Started

• 1) Plug SuperB into M2 with the antenna trace/U.FL connector towards the USB port and then plug M2 into computer. (Note the button nomenclature and board orientation)

• 2) Select "Macchina M2" as board type and upload the sketch below:

int buttonState1 = 0;
int buttonState2 = 0;


 void setup() {
 pinMode(DS2, OUTPUT);
 pinMode(DS3, OUTPUT);
 pinMode(XBEE_RST, OUTPUT);
 pinMode(XBEE_MULT4, OUTPUT);
 pinMode(Button1, INPUT);
 pinMode(Button2, INPUT);
 SerialUSB.begin(115200);
 Serial.begin(115200);
 }

 char rx_byte = 0;

 void loop() {
 if (SerialUSB.available() > 0) {
     rx_byte = SerialUSB.read();
     Serial.write(rx_byte);
 }
 if (Serial.available() > 0) {
     rx_byte = Serial.read();
     SerialUSB.write(rx_byte);
 }

 buttonState1 = digitalRead(Button1);

 if (buttonState1 == LOW) {
     digitalWrite(DS2, LOW);
     digitalWrite(XBEE_RST, LOW);
 } else {
     digitalWrite(DS2, HIGH);
     digitalWrite(XBEE_RST, HIGH);
 }

 buttonState2 = digitalRead(Button2);

 if (buttonState2 == LOW) {
     digitalWrite(DS3, LOW);
     digitalWrite(XBEE_MULT4, LOW);
 } else {
     digitalWrite(DS3, HIGH);
     digitalWrite(XBEE_MULT4, HIGH);
 }
 }

The ESP tool "Flash Download Tools (ESP8266 & ESP32)" can be downloaded here. The binary files used can be downloaded here. (Right click>Save link as)

• 1) Open the tool and select "ESP32 DownloadTool".

• 2) Enter the binary files and their addresses, and configure the remaining settings as shown below, selecting the corresponding COM port.

• 3) Place the SuperB into bootloader mode by holding down the BOOT button, pressing and releasing the RESET button, and then releasing the BOOT button.

• 4) Press start to begin flashing. (~10sec)

• 5) An easy way to test the SuperB's functionality after flashing is to send it AT commands.

• 1) Follow the instructions here to set up the board manager for ESP32.

• 2) Modify the file "platform.txt" found at: (Windows) C:\Users\YourUsername\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.2\platform.txt (MacOS) /Users/you/Library/Arduino15/packages/esp32/hardware/esp32/1.0.3/platform.txt

Replace "default_reset" with "no_reset" once on line 100 and once on line 101.

• 3) Replace the file "boards.txt" found at:

  (Windows) C:\Users\YourUsername\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.2\boards.txt (MacOS) /Users/you/Library/Arduino15/packages/esp32/hardware/esp32/1.0.3/boards.txt

Replace the existing "boards.txt" file with the one available here.****

• 4) Restart the IDE.

• 5) Open the serial monitor. Place the SuperB into bootloader mode by holding down the BOOT (SW2) button, pressing and releasing the RESET (SW1) button, and then releasing the BOOT (SW2) button. The serial monitor output should look like the one below:

• 6) Select "SuperB on M2" as board type:

• 7) A good example sketch can be found in File>Examples>Examples for SuperB on M2>WiFi>WiFiScan. Upload it.

• 8) Close and reopen the serial monitor with "Macchina M2" as the board type. Press RESET (SW1) to begin scanning for access points: