Back to the mc-17 Remote Control

After the Maker Faire, I went back to the Graupner mc-17 remote control.

The arduino library from tronixstuff for the KTM-S1201 LCD which is also using a mPD7225 controller was a good starting point. But to get the LCD up and running, it took quite a bit of fiddling and logic sniffing.

Logic Pirate attached to the mc17 LCD Logic Pirate
Open Logic Sniffer for mc17 LCD

mc17 LCD mapping of bytes and bitsOnce the controller allowed me to switch on individual segments of the LCD, I needed to adapt my implementation to this specific display, as it offers remote control specific elements unusual for normal LCDs. With a proper mapping of bits and bytes to their respective LCD elements, it was easy to implement the usual alpha-numerical characters. Each of the digits is controlled by a word / two bytes. For each byte, one bit is used to control one of the additional symbols like colons, dots, or remote controls specific texts.

 

Cheers
Tim

Trondheim Maker Faire 2014 was great!

Thanks to all those organisers who made this awesome event possible!

After we set up our stand in the morning, we were busy until the very end. There was constant buzz of kids around, who wanted to try the ROV and steer it into one of the bucket-caves we set up in the pool. Just around closing time a managed to have a quick tour of the other stands. So nice to see all this creativity around, reminds me of the Chaos Communication Camp in 2011.
Our Stand at the Maker Faire Trondheim 2014 Our Pool
RaspiTeensyROV in the Pool RaspiTeensyROV "Schematics"

Heading out to the after-party now :-)

PS: talking about the Chaos Communication Camp, who from Trondheim region would be interested in going there next year? I set up an etherpad here: https://pad.fnordig.de/p/trdccc15

Getting ready for the Trondheim Maker Faire

Last preparations for the upcoming Trondheim Maker Faire 2014. In order to display the Raspberry Pi / Teensy 3.1 based submersible ROV, I bought a used 3m diameter inflatable pool. This should give us enough space to demonstrate the little buddy.

The ROV got a slight face-lift by adding proper motor-pods and casings for the cables. The ballast stones tied to the bottom got replaced by a rusty old chain in casings. Better solution pending …

RaspiTeensyROV under Water RaspiTeensyROV - front RaspiTeensyROV after Test Clas Ohlson Pool (3m)

See you at the Trondheim Maker Faire booth 10a: Map of the Faire