The device uses a PCB that integrates an ESP32-C3-mini with the CO₂ Sensor (SCD40). The PCB also has connectors for the ...

With the ESP32 wired between the handheld’s LCD and main PCB, the microcontroller can also act as a capture device using I2S camera mode.

The ESP32 then displays the pixel art basilisk eye image with the iris closest to the blob’s coordinates, updating once a second. With a bit of processing to make the eye appear more spherical ...

Game Bub is an open-source AMD Artix-7 FPGA and ESP32-S3-based handheld gaming console that supports Nintendo Game Boy, Game ...

And its processor is an ESP32 microcontroller, which isn’t exactly a speed demon. But the Cardputer is an interesting little device for a few reasons. It’s the size of a (very thick) credit card.