Wearable LoRaWAN Muscle SpikerShield
From Hackteria Wiki
Conflicting Pins
It's not entirely clear from the data sheets, but pin 9 and 12 of the Muscle SpikerShield interfere with the LoRa Shield.
- https://backyardbrains.com/products/files/Muscle%20SpikerShield.SMD.V2.6.pdf
- http://wiki.dragino.com/index.php?title=Lora_Shield#Pin_Mapping_and_Unused_Pins
Here's one way to debug and fix this:
Resources
Arduino Masskrug Adapter https://www.thingiverse.com/thing:157538