ESPboy secure GSM phone

💥ESPboy GSM phone using SIM800C module ⚠️ Call and receive GSM calls, send/receive SMS, use thousands of SIM800 AT commands from the manual, explore GSM transceiver and cellular base stations communication protocols. Source code ESPboy - the ultimate multi-gadget Оpen source, portable, modular to explore, create, learn, code & play with AppStore and community support. WiFi onboard, Arduino IDE/PlatformIO compatible. Attach one of the ESPboy family modules to the extension port and get a new portable gadget in a minute. It could be a DIY/code educational device, retro-game console, a platform for prototyping, GSM phone, LORA messenger, GPS navigator, MP3 player, FM radio, AY player, RFID/NFC reader, Sub-1Ghz radio scanner for garage door/barriers control, universal IR remote control, WiFi scanner/attack detector, IoT smart home central unit or a slave device, U2F FIDO authentication key and much more... - Buy ESPboy: