MeshCalc

Meshtastic running on Clockwork PicoCalc (Powered by Luckfox Lyra running on Ubuntu OS)

BOARD	Tested OK
Keybaord	Yes
Virtual Mouse via keyboard	Yes
Display	Yes
USB port	Yes
SPI LoRa wio-sx1262	Yes
USB Networking	Yes
ADB	Yes
SDCARD Slot	No - remapped the spi bus to the external pins instead
Audio	No - needs hw mod and another gpio as i used it for LoRa
USB WiFi	No - but maybe could look at incl some

https://www.clockworkpi.com/

https://forum.clockworkpi.com/t/luckfox-lyra-on-picocalc/16280

** Wip **

** [Connection - External GPIO Used] **

Pinout (pictured above)

Core GPIOs  LoRa OK  

1 3V3 Output   3V3   3V3   Red  
2 GP2  RAM_TX    RM_IO12   MOSI   Blue  
3 GP3  RAM_RX    RM_IO13   MISO   Green  
4 GP4  RAM_IO2   RM_IO0   [Rxen]   Gray  
5 GP5  RAM_IO3	  RM_IO1   IRQ   Purple  
6 GP21 RAM_SCK	  RM_IO26   SCK   Yellow  
7 GP28 Free   RM_IO24   CS   Orange  
8 GND   GND   GND   Black 

Mainboard GPIOs
1 3V3 OUT               3V3             3V3             Red
2 GP0 	UART0_TX	RM_IO22		Busy		Brown
3 GP1 	UART0_RX	RM_IO23		Reset		White
4 UART1_RX		NC		NC                              CKS32F103Rx
5 UART1_TX		NC		NC                              CKS32F103Rx
6 USB_DP                NC              NC
7 USB_DN                NC              NC
8 GND                   NC              NC

root@luckfox:/# gpioinfo 0
gpiochip0 - 32 lines:
        line   0:      unnamed  "portduino"  output  active-high [used]
        line   1:      unnamed  "portduino"   input  active-high [used]
        line   2:      unnamed "ili9488_drv" output active-high [used]
        line   3:      unnamed "ili9488_drv" output active-high [used]
        line   4:      unnamed "ili9488_drv" output active-high [used]
        line   5:      unnamed       unused   input  active-high 
        line   6:      unnamed       unused   input  active-high 
        line   7:      unnamed       unused   input  active-high 
        line   8:      unnamed       unused   input  active-high 
        line   9:      unnamed  "portduino"  output  active-high [used]
        line  10:      unnamed       unused   input  active-high 
        line  11:      unnamed       unused   input  active-high 
        line  12:      unnamed       unused   input  active-high 
        line  13:      unnamed       unused   input  active-high 
        line  14:      unnamed       unused   input  active-high 
        line  15:      unnamed       unused   input  active-high 
        line  16:      unnamed       unused   input  active-high 
        line  17:      unnamed       unused   input  active-high 
        line  18:      unnamed       unused   input  active-high 
        line  19:      unnamed       unused   input  active-high 
        line  20:      unnamed       unused   input  active-high 
        line  21:      unnamed       unused   input  active-high 
        line  22:      unnamed  "portduino"  output  active-high [used]
        line  23:      unnamed  "portduino"   input  active-high [used]
        line  24:      unnamed       unused   input  active-high 
        line  25:      unnamed       unused   input  active-high 
        line  26:      unnamed       unused   input  active-high 
        line  27:      unnamed       unused   input  active-high 
        line  28:      unnamed       unused   input  active-high 
        line  29:      unnamed       unused   input  active-high 
        line  30:      unnamed       unused   input  active-high 
        line  31:      unnamed       unused   input  active-high 
root@luckfox:/# 

** [Meshtastic User Interface running (Framebuffer Mode)] - you can use the keyboards virtual mouse option with arrow keys and brackets **

Press Right Shift to enable virtual mouse

Boot Image Required for Meshtatic

[Ubuntu 22.04] Flash my other Ubuntu OS image for PicoCalc and then replace only boot.img https://github.com/markbirss/ubuntu_22.04.5_lts_picocalc

Download Link

https://drive.google.com/drive/folders/1v10ZoPi9GQchSC77REZS3_fdjDz7eGtV?usp=sharing

or

[Ubuntu 24.04]

https://github.com/markbirss/ubuntu-24.04.2-meshtastic-picocalc-wio-sx1262

or

[Ubuntu 24.04] Developer Image

https://github.com/markbirss/ubuntu-24.04.2-picocalc

Follow the meshtastic installation instructions from https://meshtastic.org/docs/software/linux/installation/

# Install requirements for add-apt-repository
sudo apt install software-properties-common
# Add Meshtastic repo
sudo add-apt-repository ppa:meshtastic/alpha
# Install meshtasticd
sudo apt install meshtasticd

edit /etc/meshtasticd/config.yaml

you need to specify a MAC address / MAC sources for your nodes unique ID

Replace boot image (with your Luckfox Lyra connected to via USB)

7z x boot.z
sha256sum boot.img

538b74d6b02b428a3506122c36815fa4cc0b6929808240d505f0635fc0c4d2dc  boot.img

adb reboot loader
sudo ./upgrade_tool td
sudo ./upgrade_tool di -b ./boot.img
sudo ./upgrade_tool rd

Meshtastic LoRa config.yaml

/etc/meshtasticd/config.d/lora-lyra-picocalc-wio-sx1262.yaml

Lora:
  Module: sx1262
  DIO2_AS_RF_SWITCH: true
  DIO3_TCXO_VOLTAGE: true
  gpiochip: 0
  MOSI: 12
  MISO: 13
  IRQ: 1
  Busy: 23
  Reset: 22
  RXen: 0
  gpiochip: 1
  CS: 9
  SCK: 11
#  TXen: bridge to DIO2 on E22 module
  SX126X_MAX_POWER: 22
  spidev: spidev1.0
  spiSpeed: 2000000

NOTE: the yaml file is whitespace sentsitive, keep the spaces

If you are using another SX1262 module simply comment out the RXen line with a #

Support my work and considder buying me a coffee

https://buymeacoffee.com/mark.birss