Matthijs Kooijman

Note sure what pin G0 is, is that DIO0? My [docs for the RFM95](https://cdn.sparkfun.com/assets/learn_tutorials/8/0/4/RFM95_96_97_98W.pdf) have no Gx pins? Assuming G0 is DIO0, you configured just DIO0, but specified DIO0, DIO1...

Looks like Gx refer to DIOx indeed (just submitted a suggestion to Adafruit to document this). > In the Hal.cpp file it states that the DIO0 AND DIO1 are required...

That's a different error, note the line number. What's on that line?

That means the version number read is not equal to what's expected. This likely means the SPI connection is bad. Doublecheck your connections, and maybe lower SPI speed here: https://github.com/matthijskooijman/arduino-lmic/blob/54bc51df00de18d7dd236fafac6b48e2597957f1/src/hal/hal.cpp#L79

Might very well be the speed. It defaults to the max allowed for the radio, which is 10Mhz, but that's often too much for jumper wires. On 16Mhz AVR, this...

Different error again, so that's progress. What's on line 660?

It should implement standard LoRaWAN, so I would expect it to work (have not tried, though). The ttn-* examples are not even really TTN-specific, other than the frequency plan in...

By e-mail, @designelektronik added that the assert in question is: ASSERT(v == 0x12 ); This means that the version number read from the transceiver does not match what was expected....

> Thanks for your reply. I cross checked with the soldering. The connectivity found to be perfect . But still I face this issue. Is there any alternate way to...

I'm a bit confused: Grove connectors have 2 power pins and 2 data pins. The RFM module needs SPI (4 pins) plus two DIO pins, so 6 pins in total....