I have found the schematics for a board that controls a treadmill motor.
I am trying to use an Arduino to send the signal instead of the upper controal board. In the schematics you can see from the Fast and Slow pins which are 5 and 6 that they send a signal to an 12F508 controller chip which outputs a pwm signal to an LED then to an Opto which then goes onto another microcontroller that sends the signal to the NPN and PNP transistors and 2 mosfets.
Does anyone have an idea based on the schematics and commons sense what I could do to interpret the signal coming out of the second mincrocontroller that goes to the 2 Transistors and 2 Mosfets or a way to decode the signal coming from the first IC?
Any help would be appreciated because I am trying to use this project to get into graduate school, (Human Factors Engineering). My focus is more on the Psychological side of Human Factors, but I have been picking up electronics as a hobby and all of these factors are well beyond me at this stage.
Thank you,
Rick
I am trying to use an Arduino to send the signal instead of the upper controal board. In the schematics you can see from the Fast and Slow pins which are 5 and 6 that they send a signal to an 12F508 controller chip which outputs a pwm signal to an LED then to an Opto which then goes onto another microcontroller that sends the signal to the NPN and PNP transistors and 2 mosfets.
Does anyone have an idea based on the schematics and commons sense what I could do to interpret the signal coming out of the second mincrocontroller that goes to the 2 Transistors and 2 Mosfets or a way to decode the signal coming from the first IC?
Any help would be appreciated because I am trying to use this project to get into graduate school, (Human Factors Engineering). My focus is more on the Psychological side of Human Factors, but I have been picking up electronics as a hobby and all of these factors are well beyond me at this stage.
Thank you,
Rick
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