Due to space constraints, I need to unstack the Particle from the Asset Tracker v2 and have them mounted next to each other. I was planning to remove the pins and connectors from the boards and solder wires connecting the necessary pins. To figure out which connections were needed, I placed the Particle in a breadboard and wired only the pins I found necessary using this diagram.
These were the pins I initially connected:
VIN
GND
TX
RX
WKP
A5
A4
A3
A2
3V3
GND
D6
I was not getting any response from the Asset Tracker, so I tried some other pins. When I connected RST and VBAT along with the ones above, the red light on the asset tracker blinked like it does when it gets a GPS fix, but when I call the GPS function it does not return a location (using the same code that worked before with the Particle stacked on the Asset Tracker).
Can someone tell me if there are other pins that I need to connect for this to work, or if there is something else that I’m missing?