I have a linear actuator with a brushed DC motor with 2 hall sensors. I intent to use the sensors to monitor the position of the actuator.
The specifications of the hall sensors are as follows:
- Hall Vcc recommended value 10-20 VDC, max 24 VDC
- Hall output sink max 24VDC/100mA (open collector type)
- 188 pulses/resolution
Now I intent to read the signal using an arduino uno board, which has a maximum input voltage of 5.5V
My question is how to hook this up, such that I do not exceed the voltage of the arduino board. I have read about using a voltage divider, but not sure if this is the right way.
Could somebody point me in the right direction?
To clarify a bit further, this link shows a schematic of the situation.
The arduino internal pull-up resistor is 20kOhm.