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 :)
- 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.