I am want to build a vehicle speed signal divider for the Vehicle Speed Sensor (VSS) on my Honda ST1300 motorcycle. The divided output will be used as a reference signal for an electronic cruise control. There is a product available to do this task, but I want to do it for myself.
Based on work that others have done using the commercially available device, it seems that signal frequency is too high for the cruise control unit and it must be divided by 4. I want to use a PIC16F886 to accomplish the task since I will be using it for other functions (features), as well. My initial thoughts are to are to use the VSS signal as an interrupt and to output a signal or ourput to a transistor to switch 12V every N number of interrupts based on jumper settings.
I am not an expert in electronics, but I have done some independent learning. I have a basic understanding. I purchased a PICKIT3, demo boards, and I have built the other functions based on a PIC1F88.
I was hoping someone could give me some feed-back on my design or new ideas on how to build this frequency divider.
Based on work that others have done using the commercially available device, it seems that signal frequency is too high for the cruise control unit and it must be divided by 4. I want to use a PIC16F886 to accomplish the task since I will be using it for other functions (features), as well. My initial thoughts are to are to use the VSS signal as an interrupt and to output a signal or ourput to a transistor to switch 12V every N number of interrupts based on jumper settings.
I am not an expert in electronics, but I have done some independent learning. I have a basic understanding. I purchased a PICKIT3, demo boards, and I have built the other functions based on a PIC1F88.
I was hoping someone could give me some feed-back on my design or new ideas on how to build this frequency divider.