Is there any product to monitor a robot battery voltage and send the analog level to an arduino or a digital signal tripped at a set voltage?
Of course you could make your own but I wanted to know if there was a product for this already available for a few bucks.
Thanks for the parts idea.
I assume that a voltage divider and the A to D input would work too as long as the voltage is not greater than 5 volts.
This sensor seems to be what you are looking for: RB-Spa-679.
You could also use this digital readout: RB-Dfr-118
Finally, you could use a voltage or current sensor form this section along with an Arduino: robotshop.com/current-voltage-sensors.html
You are exactly right. Arduino and most microcontrollers can only take signals up to their Vcc (supply) level which is usually 5V.
