I am using a 2 wire hall sensor and I am trying to get the Microsquirt to read it for RPM. I have the power going to the sensor and the sensor ground connected to the OPTIN+ and the OPTIN- is connected to 12V battery. I cannot get any reading from the Microsquirt and was wondering what I can do to make this work. Any input is appreciated.
Thank You
Jason
Hall Sensor Trouble
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Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Hall Sensor Trouble
To the best of my knowledge - and I invite correction from wiser heads - there is no such thing as a 2-wire Hall sensor. Hall sensors are 'powered' devices, and need Vcc on one wire, GND on another, and output on the third. This last may be +5v, +12v, GND, or whatever the sensor designers had in mind.
A 2-wire device is almost certainly a VR. By connecting Power to the sensor, and from there to the uS, you have completely overwhelmed the AC sensor output in DC bias.
Ummm... Why do you have +12v connected to the OPTOIN -ve? That is for coil -ve triggering...
Try connecting the 2 wires to VR+ and VR-, see what you get.
A 2-wire device is almost certainly a VR. By connecting Power to the sensor, and from there to the uS, you have completely overwhelmed the AC sensor output in DC bias.
Ummm... Why do you have +12v connected to the OPTOIN -ve? That is for coil -ve triggering...
Try connecting the 2 wires to VR+ and VR-, see what you get.
