After this tedious step, he designed a PCB that hosts an Arduino Nano to accept input, two MCP23017 GPIO expanders to give it enough outputs, and CD4066BE CMOS switches to trigger the connections.

Nanotechnology. The latest news on nanoscience, nanoelectronics, science and technology. Updated Daily.

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

An example of modifying flash memory on the Arduino Nano BLE Sense 33 from a sketch, using Mbed. - petewarden/arduino_nano_ble_write_flash ...