WARNINNG HIGH EXPERIMENTAL, DEVICE UNDER DEVELOPMENT, NOT PROFESSIONAL END PRODUCT

           This device have SUPPORT FOR MESHTASTIC or Armachat,
           two different projects on same HARDWARE

Hardware Features:

• Main brain is ESP32S3, required for MESHTASTIC
• Even though the device was originally designed for Raspberry PICO (that's why I have PICO in name), now I do not recommend its use due to the latest support obtained from Meshtastic community
• 2.8" IPS Color LCD 320x240
• 36 buttons QWERTY keyboard
• High quality Tactile Keyboard Switch DIPTRONIC 100gF (1N) soft feel, near mechanical keyboard
• RFM95 LoRa radio module
• Armachat main software in circuitpython, fully open and transparent
• USB-C battery charging for 18650 (battery not included)
• 115mm x 95mm x 18mm dimensions with internal battery

Latest SW features -> two way, compare Armachat vs Meshtastic, you can change in future, it is not easy, need some software skills but no soldering required :)

      RADIO IS NOT CERTIFIED !

ARMACHAT features

• simple circuitpython code
• Armachat firmware setup is not interactive, edit /lib/config.py
• operation is simple, type message and press enter to send, wait for send, wait for delivery confirmation
• list messages in memory
• enable disable AES256 encryption
• delivery confirmation
• one letter is command, longer text is message, if you need send only one letter give etc extra Space
• because communication protocol is not compatible with other devices you need more units than one

Armachat Commands:

• [H] - HELP
• [E]edit - modify selected message
• [M]Memory - count send received messages
• [L]List - on/off details in message
• [R]Radio - print radio information
• [C]crypto - on/off encryption
• [D]Debug - on/off debug messages
• [G]ping - start continuously sending incrementing number, for range test

Meshtastic features

• I think you know Meshtastic ...
• This device is something like well known Meshtastic gateway + standalone communicator it is like larger display and keyboard.
• SW features all as you known, unit work like gateway connected via BT to phone app
• you can send messages from phone or keyboard
• display show only last received message, no history is implemented
• no delivery confirmation implemented (you can see delivery only in app)
• wifi & BT
• all configuration you must set on mobile app
• not required to have two units chek on video Meshtastic test with phone
• more communicators interaction Standalone operations

• for details feel free ask

   Read please !!!!!!
  

• PCB SET Bare PCB boards no components included

• Do not forget select color
• Assembled working unit by selected frequency

FIRMWARE:

• Meshtastic - Assembled working unit with Meshtastic firmware
• Armachat - Assembled working unit with Armachat firmware

Required components for bare PCB self assembly

Optional components

SOURCE CODE for CircuitPython Armachat

• Raspberry Pi PICO Circuitpython
• Main code and libraries

Some important pages about ARMACHAT and places with fresh news !

• My youtube - Super fresh NEWS
• facebook.com/groups/armachat - Facebook group
• patreon.com/bobricius - You can help with any amount to keep my alive
• twitter.com/bobricius - Follow fresh news
• instagram.com/bobricius76/ - Follow fresh pictures

Distance (Max power, Spread Factor 12)

• 700m unit on garden desk
• 1500m unit in window, about 4m above ground
• 4300m unit in attic window, 10m above ground - not reliable