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The Pomdoro technique of time management has moved on a little from the tomato-shaped kitchen timer which gave it a name, as [Rukenshia] shows us with this nifty ESP32 and e-paper design. It’s ...
The PCB plays host to an ESP32 development board and an I/O expander that connects up to the array of LEDs, switches, and buttons on the front panel.
The device uses a PCB that integrates an ESP32-C3-mini with the COâ‚‚ Sensor (SCD40). The PCB also has connectors for the ...