Unable to read J1939 data

[themagicm]

I'm using a BT dongle to read J1939 data from a vehicle. It works with Torque on my Android.
Just as a test I used your example here:

ESP32_Bluetooth_multiple_pids.ino

In my code I did this: if (!myELM327.begin(ELM_PORT, true, 2000, 'A'))

Which forced the J1939 protocol but I get no data for RPM or Speed. I kept it simple and just read those two data points.

Even if I leave off the protocol of 'A', I still get no data. Specs are J1939, 29 bit and 250k baud.

[PowerBroker2]

• What year is your car?
• Where are your debug printout logs?