***** ********** ***** ***** *****Best Quality Guranteed.***** *****[Full documentation]: https://drive.google.com/file/d/1_P9HP9dKquaM_gGJa4mBdF9D2Kwx_v6s/view?usp=sharing; [Note]: This ESP32 development board comes unassembled, soldering of headers is required!! It can lithium battery powered, the lithium battery is not included, battery may be purchased here: https://www./dp/B07CXNQ3ZR***** *****Add battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage. Please refer to this example: https://github.com/HelTecAutomation/Heltec_ESP32/blob/master/examples/ESP32/ADC_Read_Voltage/Battery_power/Battery_power.ino***** *****[This is an upgraded version WiFi Kit 32! ] What's the Upgrade of New WiFi Kit 32? 1. 4MB (32M-bits) FLASH upgrade to 8MB (64M-bits) FLASH; 2. Better 2.4GHz antenna design and impendence matching; 3. Basic low power design (800uA in deep sleep); 4. Add battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage. Please refer to