Readytosky Bidirectional 20A Brushless ESC 2-4S 2A 5V UBEC Electric Speed Controller for RC Car Boat Underwater Propeller

First few water cooled speed controls i bought had no revearse so boat couldnt flip if flipped.

I use these to run some cheapo a2212 brushless motors on arduino and esp32Note to buyer doing the same, 1100 is your minimum for movement, 2000 is your max. Go opposite to reverse.Max pulse -2000 to 2000, 0 to stop, anything in the 0 to 1100 ranges will give some power, but the motor stalls, you can probably use that to slow down after acceleration

For buyers that are building a drone/plane, beware that it is a Bidirectional ESC that doesn't have a calibration mode.

Built an ROV that needed forward and reverse for the brushless thruster. This ESC got the job done on my shoe string budget. Gave 4 stars because I could not find adaquite instructions for calibrating this ESC. Since I used a microcontroler to control it, I ended up just adjusting the pwm signals I was sending it.

Update to this review: ReadyToSky was good enough to send me a new ESC, even though it was out of Warranty. Thankyou!!I tested the new one provided by ReadyToSky, and it works perfectly! I am grateful they responded so quickly to help my situation!I will try out the new ESC once I receive it, and update review accordingly.I wanted to like this, but I shorted out and almost started on fire the first time I tried to use it. I bought two of these. One worked fin

I used this ESC with the following motors:https://smile.amazon.com/dp/B07545RQ62https://smile.amazon.com/dp/B07JG1LKYQIt work perfectly with Raspberry Pi, ESC requires the PWM signal to be right in the middle and the response is quick! No clogging! I've also tested this with Arduino and a Servo tester, no issues. One thing to keep in mind, you need to have good connections to the motor, I tried using small jumper cables and that caused alot of clogging. Make sure you have the right connectors or solder it on.

This ESC is NOT FOR DRONES. It is for helicopters and the ad should have stated this. As a result they burned up 3 motors, costing me $150 to replace.DO NOT BUY THIS PRODUCT FOR DRONES

If something seems too good to be true, it likely is. You'll be hard-pressed to find a 50A rated bidirectional ESC like this one at this price.I need 4 symmetrically bidrectional ESCs for my project. This is actually kind of hard to find. Most bidirectional ESCs seem to supply more forward current than backwards.I bought 4 of these ESCs to use with some Turnigy XK2845-1980KV motors and a 4s battery. Under no load, just experimenting with control signals, everything seemed great. But the slightest amount of load led to the motor getting smoked (i.e. the coils got so hot they melted the enamel leading to shorts--this kills the motor). I thought this was just random chance, so with another ESC and another motor I did the same test and smoked a second motor.They're twitchy--as far as I can tell my PWM signal is stable (using a micro controller and hardware PWM) yet at neutral throttle (50hz signal, 1.5ms on-time) they are twitchy.Further testing, same set up as before, all components within spec, led to the ESC entering a boot-loop (the start up chime kept playing over and over) before the ESC literally blew up. One of the big electrolytic capacitors blew.Others clearly report better success than I--I'm new to the hobbyist motor/ESC game so maybe I've messed up something royally and don't know it. But caveat emptor--I burned up two, nice, relatively expensive name-brand motors that are perpetually out of stock now and cannot replace.