Raspberry Pi pico (RP2040 core board)
advantage
Compared with the original version, the size remains unchanged, the pin number is silk-screened on the front, all pins are drawn out (including the digital pins used to control the power chip and the analog pins connected to NTC in the original design), and a type C interface is used ( The cc pin has a 5.1k pull-down resistor), a reset button has been added (with capacitor debounce), and the original DC-DC regulator has been retained. It uses mp2155. If anyone needs improvement, I recommend PW5410B
shortcoming
My ability is limited and I really can’t put all the components on the front. Due to the previous point and cost reasons, I didn’t do stamp hole design. I’m not a professional in PCB design, and the wiring on the back is ugly... Private Marseille
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