SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!
This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for datasheets and the simply curious.
Description: Replacement:ROB-12075. Dagu has released a much stronger motor controller that acts as the Wild Thumper board’s successor, go check it out! This page is for reference only.
This controller board is built by Dagu specifically for their robot platforms. It essentially combines an Arduino development board with a dual H-bridge motor driver all bolted down to an aluminum heatsink. The heart of the board is an ATMega168 AVR microcontroller which comes loaded with the Arduino bootloader and some simple control code. Code can be easily accessed and changed in the Arduino IDE using the on-board FTDI chip and mini-USB connector. All of the headers on board are accompanied by ground and voltage lines to allow for easy servo connection.
The controller allows for on board charging of SLA, NiCd or NiMh battery packs and has a dedicated barrel jack socket for DC input. A 5 Amp LDO voltage regulator handles the step-down from standard 7.2 or 7.4v RC battery packs. A set of screw terminals are provided for the battery connection as well as for connecting external devices (5 volt regulated out).
The motor controller side is made up of dual 15A FET H-bridges with fuse protection. A blown fuse is detected by the microcontroller and indicated by an on-board LED. Screw terminals are populated and clearly marked for left and right. All of the FETs are bolted down to the aluminum heatsink and electrically isolated with thermal tape.
This board is ready to go out-of-the-box! The supplied code will accept input from a standard RC vehicle receiver and handle the “mixing” for differential steering. If you would rather control it with Serial or I2C input, that can be done simply by downloading the proper Arduino sketch and changing a few constants (it’s programmed in!). Also, because it is an Arduino compatible controller, feel free to write your own control scheme or even load it up with sensors and go autonomous! Seven general-use digital pins are broken out on the board as well as 5 ADC pins and the ISP header. Uploading code is as simple as selecting “Arduino Pro or Pro Mini (5V, 16MHz) w/ ATMega168” under the boards menu in the Arduino IDE.
Note: The 2 Amp on-board charging system is not capable of charging Lithium Ion or Lithium Polymer batteries. Attempting to charge LiPo batteries with this board could cause fire or injury. Lithium batteries may be used to power the board, just charge them with a dedicated LiPo charger.
Dimensions: 4" x 2 3/8" x 1 ¼"
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