ESP32C3 converts the USB programming port into UART communication through the IO matrix, which is not a one-time conversion.

The battery is 503530, 500mAh.

Provide solidworks2022 source files and STP files, you can modify the shell to adapt to your own battery (the lower version of ssolidworks cannot open the higher version)

Power chips and NTP and TVS and LEDs use dismantling goods, a total of 8 cents, link

Adapted modules

• For all satellite modules using NMEA0183 positioning protocols, GP-02-KIT is recommended.
• SYS02 five-in-one air quality sensor, it is more cost-effective to buy two coupons in LCSC.

TX to TX, RX to RX