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Features ESP32 based Pico D4 SiP with 2.4GHz Wifi, V4.2 Bluetooth, 8MB external SPI PSRAM, 520kB internal SRAM, 448kB ROM, 14 GPIO, 8 ADC and 6 touch sensitive pins, I²C 3V3 adapter, RGB smart LED, 1 cell LiPo/LiIon battery charger with optional battery connector and CH340C for USB comunication.
- /Documentation -- Pinout.
- /Hardware -- Schematics, layout.
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- [REV0.0.2]
- added testpoint for GPIO0
- R16 and R17 connected in series
- interchanged GPIO2 and GPIO12 functions because GPIO12 cannot be pulled high while in flash mode
- added 100nF in parallel with R13 for better battery voltage level reading
- adjusted the pin labels for better visibility
This is released under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. You are welcome to use this for commercial purposes.
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Certifications:
Open Source Hardware Association
