Soldered Electronics has made ESP32-based e-paper displays for years, starting with the launch of the Inkplate 6 in 2019. The Inkplate 13SPECTRA is their latest model based on an ESP32-S3 WiFi and ...
2 Arduino Uno shields provide an oscillator, an attenuator and a detector, all under Arduino Serial or CLI control. Control and readout can be automated using e.g. a shell script. This circuit is ...
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