Let's Make Robots!

Free Motor Controllers!

I am currently designing some very budget friendly Motor drivers, and to test the design out, I am giving away 10 free drivers! Each driver is a single or possibly dual (5 single and 5 dual) transistor based design, and cost per board is very, very low. If you would like one of these free driver boards, please post in the forum below. No restrictions! Each board ships with a application note so you know how to use it.

A few specs:

Max Voltage: 30V

Max Amperage: 0.6A

The design is called the "Smokable" Transistor H bridge, because if you turn both Transistors on a single side High, you can "smoke" the H bridge, as it'll create a direct short across ground. Basically, don't drive both sides high. It requires 4 GPIO to control, and allows for High Side and Low Side Braking, as well as coasting.

 

********************************EDIT 2**************************

Did a update on the board, this one is actually manufacturable quality. I will etch the board today and see how it turns out. I decided to make 10 Dual Controller boards instead of half and half. When I recieve your shipping information and 5 dollars for shipping, you will recieve your board and a confirmation that it has been shipped via USPS. No international shipping atm until I can figure out your individual cost.

********************************EDIT****************************
I have plenty of parts on hand, but I do not want to pay for shipping. Therefore, when I recieve your shipping information and funds via paypal your board will be shipped.

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mlandergan's picture

Do you have any left? If so, would the motor controller work for these motors? http://www.trossenrobotics.com/store/p/5761-Motor-Mount-Wheel-Kit-with-Position-Controller.aspx

Gonzik's picture

These boards will not work with those motors. 1.5A free spinning is already more than twice the rating of Krumlinks boards. Those motors need relays or some well designed and heatsunk MOSFETS.

Andres Briano's picture

Thumbs up to the most prolific entepreneur of the site! Like St3al said, shipping to us is probably not worth the effort. However, I didn´t want to miss the opportunity to say: great attitude! 

MrAlexis44600's picture

Any news on the Krumtroler board?

I have been roving the internet for a replacement motor controller but I'm thinking of building (again) a multi SN754410 board.

There are surface mount pads on the bottom of the IC, making it nearly impossible for me to make the board, even if it was double sided :/

Paul D. Will receive the first board so far. I will ship it today or tomorrow.

PaulJD's picture

Hi Krumlink,

did you receive my funds?

have you had a chance to ship the board?

PaulJD's picture

...Guinea Pig # 1 climbs into position...

Alright I have one board done so far, it will go to CtC, the next one will go to the next user that I receive shipping info from.