PICOmputer (MotherBoard) universal Low power QWERTY handheld
Other recommended PCB parts
- Motherboard:
- Top cover for black/gold variant
https://www.pcbway.com/project/shareproject/PICOmputer_Panel_Gold_026492bd.html
- Top cover for white/black variant (recommended)
https://www.pcbway.com/project/shareproject/PICOmputer_Panel_white_f9264446.html
- Left/right side you need double count !
https://www.pcbway.com/project/shareproject/PICOmputer_Left_Right_side_d584c5c4.html
- Down side
https://www.pcbway.com/project/shareproject/PICOmputer_Down_side_a4b53ffc.html
- Top side
https://www.pcbway.com/project/shareproject/PICOmputer_TOP_side_5d3c5fa5.html
- Bottom cover with charger
https://www.pcbway.com/project/shareproject/PICOmputer_Bottom_charging_cover_d5150033.html
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
PICOmputer (MotherBoard) universal Low power QWERTY handheld
*PCBWay community is a shared platform and we are not responsible for any design issues.
- Comments(2)
- Likes(8)
- David Hansen Mar 22,2024
- Engineer Mar 02,2024
- Engineer Jan 16,2024
- (DIY) C64iSTANBUL Jan 13,2024
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