So here are two Uconsoles CM5 with production SDR Extension boards talking to each other via meshtastic. Huge thanks to Rex & Vileer for their amazing works.
5 Likes
When I said OK maybe I was too much optimistic. Commercial radio is barely listening with the board, as you can hear on the 2 YouTube videos I posted. Tomorrow I will try to modify bandwidth and test again with the USB stick and with the expansion board.
Next stop - Range tests.
Anyone else having the random issue where, after a restart I get this error:
pi@clockworkpi:~ $ meshtasticd
Portduino is starting, VFS root at /home/pi/.portduino/default
Set up Meshtastic on Portduino…
Using /etc/meshtasticd/config.yaml as config file
MAC ADDRESS: D8:3A:DD:93:08:3A
Warning, cannot claim pin GPIO26St16invalid_argument
Error setting pin number 26. It may not exist, or may already be in use.
Running on CM4 8GB, Bookworm latest from Rex.
Config file:
Many device configs have been moved to /etc/meshtasticd/available.d
To activate, simply copy or link the appropriate file into /etc/meshtasticd/config.d
Define your devices here using Broadcom pin numbering
Uncomment the block that corresponds to your hardware
Including the “Module:” line!
Lora:
Module: sx1262 # HackerGadgets RTL-SDR/LoRa extension board
DIO2_AS_RF_SWITCH: true
DIO3_TCXO_VOLTAGE: true
IRQ: 26
Busy: 24
Reset: 25
spidev: spidev1.0
GPIO:
User: 6
Define GPS
GPS:
SerialPath: /dev/ttyS0
Specify I2C device, or leave blank for none
I2C:
I2CDevice: /dev/i2c-1
Webserver:
Port: 443 # Port for Webserver & Webservices
RootPath: /usr/share/meshtasticd/web # Root Dir of WebServer
Thanks again for the board. Was nice getting to listen to 40m today.
2 Likes
Got my board and antenna mount kit yesterday, but forgot to order antennas before it shipped. Ordered antenna kit from Hacker Gadgets. Now the wait is on again. 
If the order does not contain the aio board, it will be shipped within one or two business days.
1 Like
You solved my problem.
Now It works like a charm both the expansion board and the USB rtl.
Awesome news, Thanks!!!
Is there a list somewhere of the which pins on the pcie connector are in use on this board? for if you want to add a fan or something?
You can use the usb pin header on the board, it exposes the 5v and find and got labels on it.
Glad to hear that. But you still need to be aware of the difference when operating below 30 MHz between this board and the RTL-SDR blog V4.
since the antennas are shipped unlabeled, for clarification, which one is the lora and which one is the wifi antenna?
The straight one is 433MHz, the cone (tapered plug shaped 
) is the WiFi.