Tinkerforge Motor Driver

There is a nice mikrocontroller kit system available, see tinkerforge.com . Just connect the bricks and begin to program your application! No need to have a soldering iron...

There are lots of sensors and also IO-boards (named "bricklets"(, however there was no bricklet which can control 4 tortoise turnout motors "out of the box".

I now made such a board, based on the IO4-bricklet with 2x LB1909MC as +/-12V drivers for the motors. Here is an image of the 35x35mm "IO4-12Volt" Bricklet:
The test setup with a master brick, an RS485 brick, the new "tinker-tortiose" bricklet and a turnout motor:

Schematics: (for the software the module is identical to the IO-4 Bricklet )

Using this bricklet with JAVA
If you connect to a RaspberryPI (and with "raspian"OS ), you must first

To control tinkerforge modules via "Lanbahn" UDP Multicast pakets, I have written some small java programs which you find on: sourceforge - project Lanbahn, directory tinker

"work in progress": a compact 4-channel "train-on-track-indicator" (with galvanic isolation via optocouplers) ein kompakter 4-Kanal Belegtmelder (mit galvanischer Trennung ├╝ber Optokoppler) for the Tinkerforge System. The blue connector is for ISP programming of an ATtiny84.