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It is possible to connect a Playstation controller (Sixaxis or DS3) directly to the EV3 brick over Bluetooth. Here is how I do it: http://www.pabr.org/bricks/brickhid/brickhid.en.html There is a servo emulation mode which should support rack-and-pinion steering. Note that this is a quick-and-dirty proof of concept with several limitations: A PC is needed ...


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Raw sensor value works, but shows a level of dark, not of light :), meaning that higher values indicate lower light. Ambient light works directly, but for reflected light you need to insert a EV3 Color Sensor block with Reflected Light mode to turn on the light in the NXT Sensor. After that, use raw values or the Sound sensor block. The Sound sensor block ...


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As mentioned by @guestguy123 and @eficker, it is easy to combine an EV3 cable and a PF cable to make a custom cable that allows the EV3 to control. This can even be done without soldering - I just twist the wires together and tape them with electrical tape. The full schematic is here: All you need is 2 resistors (1x1kOhm and 1x10kOhm) which are cheap to ...


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There is always the .NET API for Windows 8/ if you don't mind programming an app yourself (this would work for Windows/Windows Phone 8). The sample provided would allow you to control the individual ports of the brick but it doesn't take much to change this to control multiple ports from one button press. https://legoev3.codeplex.com/ Sadly this solution is ...


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Here are some ideas... Hardware options: Purchase the EV3 Infrared Sensor and Beacon (This is a nice option since it can do more than just remote control) Purchase the Hitechnic IRReceiver Sensor Purcahse a mindsensors.com PlayStation controller adapter Software options: Use the Monobrick Remote. Read the articles about remote control from Sioux.NET ...


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Checking the source code, it appears that the opOutput_Get_Type command is not implemented. In both links, it is mentioned in the comments, but there is nothing in the actual code. Unfortunately, I am not finding a different way to get this information.


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I managed to recover a 'clicking' NXT brick using a PC with windows XP and Lego Mindstorm NXT v2.0 just by clicking on Update NXT Firmware .


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If you'd rather not cut off the ends off two batteries and jury-rig in rods of hot melting glue to act as spacers, and instead have access to a 3D printer, take a look at http://www.thingiverse.com/thing:122810 :-)


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There's an official app released by LEGO called the LEGO MINDSTORMS COMMANDER. It's available on both Android and iOS. I believe this is what you are looking for. LMC lets you control the EV3 brick via bluetooth on your smartphone. It's not exactly an API, but it lets you control the EV3.



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