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by adentse
Mon Jan 26, 2015 9:28 pm
Forum: HATs and other add-ons
Topic: Chroma RC-servo controller for Raspberry Pi
Replies: 1
Views: 1560

Re: Chroma RC-servo controller for Raspberry Pi

And also available on Ebay... http://www.ebay.com/itm/RC-Servo-controller-board-for-Raspberry-Pi-version-3-Also-works-on-Odroid-C1-/261539547123 And yes, it can also be done in SW on the RPi, but well, the connectors are nice :) And that it has an MCU with arduino-boot if one wants to do something e...
by adentse
Thu Apr 24, 2014 11:01 pm
Forum: HATs and other add-ons
Topic: Chroma RC-servo controller for Raspberry Pi
Replies: 1
Views: 1560

Chroma RC-servo controller for Raspberry Pi

Hello! When i got my Raspberry pi almost 2 years ago I wanted to build an autonomous boat. The only thing that came out of that idea this far was a Raspberry Pi RC-servo controller board. And I have been tinkering on it since then and made new versions, then an USB-version, then a prototype bluetoot...
by adentse
Thu Apr 24, 2014 9:54 pm
Forum: Java
Topic: Android app - controlling servos
Replies: 2
Views: 1802

Re: Android app - controlling servos

First: This is my board, just a prototype yet. https://www.youtube.com/watch?v=qDyNm4NOZEY It eliminates the Raspberry pi completly for good or bad :) To answer your question you could figure out the endianness and manually (bitshift?) convert the data from 32bit to 8 bit and populate an array of by...
by adentse
Mon May 06, 2013 10:39 am
Forum: Automation, sensing and robotics
Topic: Driving multiple servos from the RaspberryPi
Replies: 209
Views: 94812

Re: Driving multiple servos from the RaspberryPi

I made a batch of 10 convenient break out board for thoose servos, as I wrote earlier in this thread. http://electronics.chroma.se/sw_servo_stor.jpg ´ It has a buffer IC to make the signals 5V, and it has the serial port broken out, and the complete RPi GPIO port is passed through. They are just was...
by adentse
Tue Dec 04, 2012 11:16 pm
Forum: Automation, sensing and robotics
Topic: Driving multiple servos from the RaspberryPi
Replies: 209
Views: 94812

Re: Driving multiple servos from the RaspberryPi

Hello! I tried to layout a board to get nice connectors and a buffer for the RPi. Arrived today and got it working after updating the kernel. It got a a 74HC541 to make the 3.3V-signal 5V. It also protects the RPi from the servos/ESC and the servos can be powered via ESC or RPI, and RPI can be power...
by adentse
Fri Nov 16, 2012 12:21 am
Forum: Automation, sensing and robotics
Topic: RPi RC Car Part 1 - video
Replies: 16
Views: 9133

Re: RPi RC Car Part 1 - video

Ah, cool you're actually using my servo-board! Are you still happy with it? :) I would love to make an autonomous boat with it some day, when I get time, I live pretty close to the second largest lake in Sweden, and my brother lives about 70km north, at the same lake. So it would be reaaaaally cool ...
by adentse
Fri Nov 16, 2012 12:05 am
Forum: Automation, sensing and robotics
Topic: Driving multiple servos from the RaspberryPi
Replies: 209
Views: 94812

Re: Driving multiple servos from the RaspberryPi

I think this might render my card quite useless :)

http://electronics.chroma.se/rpisb.php

Anyway, modified my card a bit and replaced the Attiny with a buffer-IC and
connected it to the IO-pins that the kernel-module use.

Hope I'll get theese cards soon :)

Best regards
Mikael

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