NickZ wrote: ↑Sun Sep 19, 2021 10:33 pm
the Serial output is in Lambda on these controllers, you can connect a serial to usb and use the arduino serial monitor to view the Lambda readings.
I have a clip on display coming for the BL49SP that can show Lambda or AFR.
https://www.youtube.com/watch?v=YXGPykssOkk&ab_channel=NickHay
Verry cool!
did you wire the display directly from the bl49sp? (i guess this will need modification to the code?)
or do you use a additional controller (arduino?) wich is looking for data from the bl49sp serial output, and convert it to display output on the display?
i have another question about heater startup/measuring.
i would like to start the sensor heater (x time) after engine start and is running.
now there are different ways to accomplish this.. i've been thinking about letting the ecu control this (maybe with opto coupler to avoid grounding issues?) somehow by grounding the IN pin on bl49sp.
but at this moment im looking for a more universal way when running bl49sp in standalone mode.
i could think of making a CAN sniffer wich is looking for a 'Engine Running' message to power up the Sensor heater and start running..
but there should be a much more simple solution for this to accomplish.
now i was thinking to make an additional circuit wich act like a On/Off switch and switches the IN pin off bl49sp to ground when the +UB pin is seeing 13-14+V (to determine engine is running)
any suggestions? could it be even more simple? or maybe even codewise with V0.0.2a? (and would this be doable for someone like me im no expert in coding
)
maurice.