Improved GSM phone module using SIM800C

A project log for ESPboy - RetroGaming&Software development MuliTool

For IT geeks, retro game fans, makers. Open source, portable, modular to explore, create, learn, code & play

RomanSRomanS 10/16/2021 at 21:230 Comments

ESPboy GSM phone module.

GSM calls and answers, send/receive SMS, AT commands (check 600 page SIM800 manual)

SIM800C supports Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption.