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ESP WROOM 02 with battery socket, does it need extra resistors to monitor 4.2v? - Project Guidance - Arduino Forum
GitHub - ahinrichs/DoorsignEPD-pcb: ESP-WROOM-32 breakout board to connect it to a Waveshare E-Ink display
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Amazon.com: HiLetgo ESP32 ESP-32 ESP-32S ESP32S WiFi Bluetooth Wireless Board Module Based ESP-WROOM-32 Dual Core Mode CPU : Electronics
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