Opinion/Advice: RC Stair Climbing Robot

 Created by: elgab
Orig. Posting Date User Name Edit Date
Oct-23-2018 01:50AM elgab Edited: Oct-23-2018 02:16AM  
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 Posted: Oct-23-2018 01:50AM
 Edited:  Oct-23-2018 02:16AM
Total posts: 1
Last post: Oct 23, 2018
Member since:Oct 23, 2018

Hi! I was wondering if I could get your opinion/advice. My team is putting together a stair climbing robot with a motorized retrieval system for our Mechanical Engineering class. We will be using 5 DC brushed motors in total: 4 of these motors (https://www.pololu.com/product/1106) and 1 less powerful motor that we have yet to find yet. We will be controlling these motors using ESCs and a wireless remote control transmitter/receiver system, along with an SLA 12 V battery (https://www.amazon.com/7-2AH-Battery-Verizon-FiOS-PX12072-HG/dp/B00OZMW232/ref=sr_1_14?ie=UTF8&qid=1538451170&sr=8-14&keywords=12v+batteries). We have already ordered the motors and battery, however we are still deciding on the ESCs and transmitter/receiver system. The stall current for out motors is 5A, although our draw current draw seems to be around 2.5A, based on calculations.

We are considering to use these
ESCs: https://hobbyking.com/en_us/hobbyking-x-car-45a-brushed-car-esc.html - as we need the forward, reverse, and brake functionality. HOWEVER, I think we can't use this ESC because it's input voltage is 6-7.4 V and our battery is 12 V.
Transmitter/receiver: https://hobbyking.com/en_us/turnigy-t6a-v2-afhds-2-4ghz-6ch-transmitter-w-receiver-v2-mode-2.html - as it has a 6 channel receiver (and we need to control 5 motors)

The possible cons are that I think we can't use the mentioned above ESCs because of its input voltage and the transmitter/receiver is says that there is servo reversing but I am not sure if it will work for the motors we have.

Do you think the transmitter/receiver will be able to work together with these motors with the right ESC (ie. will it's reverse function be able to work with our motors)? Or, do you have any suggestions on other products we could use instead (we need to stick to the motors and battery though)? Do you have any suggestions for ESCs?

Thank you!