The PCB holds an ESP32-PICO-D4 which is operating as a standard Bluetooth HID controller for maximum compatibility with modern systems. Control signals are pulled directly from the controller’s ...

Inside this tiny package is a beautifully-spun board with an ESP32 Pico D4 for a brain. In addition to the climate sensors there is a combination CO2/TVOC sensor (that’s total volatile organic ...

We made something similar but using the RP2350A board, the Raspberry Pi Pico 2, and published a guide on how to get Wi-Fi on the Pico 2 using an ESP32 ... design as well as schematics for how ...