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TinyPICO - ESP32 Development Board [V2] : ID 4335 : $20.00 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: ESP32 Development Board 3.5x1.2in 2.4GHz Dual-Mode WiFi and Bluetooth Compatible Dual Cores Module for 18650 Battery : Electronics
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Esp32 Esp32s 16340 18650 Lithium Battery Shield V3 V8 V9 5v/3a 3v/1a 3.3v 5v Power Bank Battery Charging Module Micro Usb Type-a - Integrated Circuits - AliExpress
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