I am working with my grade 8/9 class who are building an ROV for a regional competition. We have two 12V grippers that we want to be able to control. Rather than using DPDT switches as we use for our thrusters, we would like to use joysticks that can control both speed and direction of the grippers. What do I need to purchase for this? Please keep in mind that we have a limited budget and do not have experience with coding.
Thank,
Wayne
link to grippers?
For hobby grippers, they’re usually 5V R/C servo motors…
Can you provide a picture of the 12V grippers? There is an attachment section below the reply window.
We are just looking to be able to open and close two grippers and be able to control the speed of the gripper.
One will be mounted to our underwater ROV horizontally, and one vertically.
This is for a MATE Scout class competition. We are provided with the following power supply: 12 volts, 15 amps DC. Conversion to lower voltages is permitted topside and on the ROV. Onboard electrical power is not permitted.
You need a brushed DC motor controller:
robotshop.com/en/brushed-mot … llers.html
The controller needs to provide at least 450mA (most are 1A+) at 12V and you would choose based on how you plan to send a signal.
Note that that gripper is not made for underwater use and may not work at all, or the wires may corrode.
Thanks. I realize that the gripper is not waterproof, but i’ll waterproof it 
Would this work for me?
SyRen 10A 6V-24V Regenerative Motor Driver
RB-Dim-04
and joystick RB-Hit-129
… I want to be able to control the speed and direction of my gripper (pic above). I simply want to connect a joystick, DC 12v gripper, and DC 12v power supply. No digital input.
The joystick is compatible with the motor controller, which can provide more than enough current for the motor. Keep i mind however that the length of cable between each should not be too long, or the signal will degrade.
