My 2245 PiHat arrived two weeks ago, and I have not yet been able to get it to make a connection to The Things Network server.
Are there diagnostic programs that would test the 2245 to ensure that it is working correctly? The /opt/ttn-gateway/lora_gateway/util* programs don’t provide board diagnostics (and spectral_scan refuses to run, which leads me to believe there’s a hardware or fpga version issue).
I’m new to LoRa, so this might be an installation problem. Briefly:
- I’ve installed the 2245 on a Pi-3B+. I booted Buster on a USB-SSD drive in my first attempts in which I installed Chirpstack; I now boot Stretch from a µSD card that was imaged from RAK’s firmware repository.
- I’ve installed Chirpstack on Raspbian Buster a couple of times with no success, so I gave that up and have been working on just the standard RAK image since then.
- I’ve installed https://downloads.rakwireless.com/en/LoRa/RAK2245-Pi-HAT/Firmware/RAK2245%26RAK831_based_on_Raspbian_OS_for_RPI3_V4.1.0_20191202.zip a couple of times with no success, and that’s the system I’m focused on right now.
- I used Version 1.0, May, 2019 of the installation guide for instructions.
- I set my system up as a concentrator/gateway to the TTN network.
- I configured for US frequencies on both the TTN network server and the gateway. I noted the ID reported by the RAK gateway-version and used it to provision the gateway on the TTN console.
- The TTN network reports that it is connected to my gateway.
- I created the application and device on the TTN console. Simulating packets up/down DO NOT get reported as traffic at the TTN console.
- I have a Sparkfun SAMD21 Pro RF I’m using to send packets to the RAK gateway. Those packets are not seen by the TTN Console. I presume that they are not seen by the RAK hardware or software.
- My friend, with the same RAK2245/SAMD21 setup, runs my SAMD21 code and successfully sends packets over his RAK2245 to my TTN network service, so I’m pretty sure the Arduino code is working correctly.
- The lora_gateway journalctl logs report that the software is not connecting to the GPS. The TTN console has not updated the gateway’s location from GPS coordinates. I do see 1-sec packets coming from the GPS (cat /dev/ttyACM0), but the RAK application doesn’t see them.
From the startup logs:
*** Beacon Packet Forwarder for Lora Gateway ***
*** Lora concentrator HAL library version info ***
Oddly, radio 0 has center frequency 904300000; radio 1 has center frequency 905000000. I think those are NOT the subband 1 frequencies TTN expects to use in the US, but that code DID work on my friends’ SAMD21 selecting subband 1, so I haven’t changed mine.
In fact, I’ve done no tinkering with parameters except through the gateway-config program supplied by RAK. This is a standard install following standard instructions.
So my conclusion is that I have faulty hardware. Are there diagnostics I can use to check that? Or does anyone have suggestions for other things I should look at?