I need help figuring out what electronics I need to make a RC lawn mower. I will be using two 24v electric wheel chair motors on the rear of the mower that need to be individually controlled for steering. And I will have two caster wheels in the front. I need a parts list for remote control, receiver, and motor controller. Preferably cost effective options. I’m just trying to create a proof of concept and will upgrade over time. Thank You
RC Motor Controller
You basically need a dual RC motor controller which accepts RC input. You’ll need to know the motor’s current draw and nominal voltage in order to select the right controller from this category:
https://www.robotshop.com/en/rc-motor-controllers.html
Some like the Sabertooth RC have the RC wires already soldered to the board, while others need the cable:
https://www.robotshop.com/en/sabertooth-dual-12a-regenerative-motor-driver.html
https://www.robotshop.com/en/lynxmotion-sc-01-servo-single-cable-12.html
Check to see if the controller has a built-in 5V BEC so you can power the receiver from the controller (no second battery needed). You might have a little configuration to do, but these are almost plug and play.
Regarding starting and stopping the mower blade, you can use an RC relay to control the DC motor:
Example: https://www.robotshop.com/en/cytron-10a-radio-controlled-relay-switch.html