http://fixme.ch/w/index.php?action=history&feed=atom&title=LED 2026-04-18T00:27:13Z Revision history for this page on the wiki MediaWiki 1.25.1 http://fixme.ch/w/index.php?title=LED&diff=10801&oldid=prev 2015-11-07T19:56:49Z

<p>Created page for LEDs in general, started work on guide for PCA9685</p> <p><b>New page</b></p><div>Page about everything that is LED<br /> <br /> == Controlling LEDs with RPi ==<br /> === PCA9685 I2C board ===<br /> [https://learn.adafruit.com/adafruit-16-channel-servo-driver-with-raspberry-pi/overview Board and guide]<br /> <br /> '''Steps to get it to work'''<br /> # Connect VCC to Pi's 3.3v, GND to Ground<br /> # Connect the SCL to pin 05 (GPIO3) SDA to pin 03 (GPIO2)<br /> # sudo apt-get install python-smbus i2c-tools<br /> # Add the following two lines to &lt;code&gt;/etc/modules/&lt;/code&gt; with something like sudo nano:&lt;br&gt; &lt;code&gt;i2c-dev&lt;/code&gt;&lt;br&gt; &lt;code&gt;i2c-bcm2708&lt;/code&gt;<br /> # Add the following lines to &lt;code&gt;/boot/config.txt&lt;/code&gt; and reboot: ([https://www.raspberrypi.org/forums/viewtopic.php?p=675385#p675385 see this for older Pi's])&lt;br&gt;&lt;code&gt;device_tree=bcm2708-rpi-b-plus.dtb&lt;/code&gt;&lt;br&gt;&lt;code&gt;device_tree_param=i2c1=on&lt;/code&gt;&lt;br&gt;&lt;code&gt;device_tree_param=spi=on&lt;br&gt;&lt;/code&gt;<br /> # Run &lt;code&gt;sudo i2cdetect -y 1&lt;/code&gt; and you should see something like this:&lt;br&gt;[[File:Raspberry-I2C-test.png]]&lt;br&gt;If everything was setup correctly, you now should be ready to go<br /> #</div>

Sasha