ARMACHAT

My network = my rules, no borders, no limits, no operators.

Full time step by step - soldering, programming, assembly

Standalone Doomsday LORA QWERTY communicator

How to restore communication after disaster or Armageddon ?

It is just hi-tech walkie talkie for fun :)

Hardware features:

SAMD21G18 for desktop version (pocket version use SAMD21E18, more easy to solder in TQFP32)
QWERTY keyboard 40 keys (4x10) desktop version 30 keys (5x6) pocket version
18650 li-on battery
1.8 TFT LCD display 128x160 ST7735
RFM95 lora module
3 freq. by your country
IRQ / wake up
Beeper
Battery charging
Software RTC with alarms

I shortly tested this messenger in my village and distance is about 500m without direct sight with spread 9.