Displaying ETC on an Arduino

Add your API key to crypto_display.ino, then upload to your arduino!

With the arduino CLI, you can simply use make all.

We create a fully functioning, responsive chess system.

I followed the instructions from here and in this video.

1. Run brew install arduino-cli in terminal
2. Check if the arduino-cli is accessible from theterminal by typing: arduino-cli.
3. Run arduino-cli core update-index in the terminal
4. Next, you need to identify the port that the arduino is on. You can do this by running arduino-cli board list and plugging / unplugging the arduino. For me the port is /dev/cu.SLAB_USBtoUART.

And you're basically done setting up! To compile your program you need to run:

arduino-cli compile --fqbn esp32:esp32:esp32 YOUR_INO_FILE

Following this command you should see something like the following:

Sketch uses 240060 bytes (18%) of program storage space. Maximum is 1310720 bytes.
Global variables use 14504 bytes (4%) of dynamic memory, leaving 313176 bytes for local variables. Maximum is 327680 bytes.

Finally, to upload to the ESP, you will need the port from step 4 of above. To upload run the following command:

arduino-cli upload -p YOUR_PORT_FROM_STEP_4 --fqbn esp32:esp32:esp32 YOUR_INO_FILE

Which, if everything works correctly should upload it to the Arduino and show the usual output you see.

TO view the serial monitor run screen YOUR_PORT_FROM_STEP_4 115200. To exit, use ctrl-A then ctrl-D.