Monthly Archives: December 2014

An oscilloscope for the Pi, to check the states of the GPIO pins. Install the daemon on the Pi: http://abyz.co.uk/rpi/pigpio/download.html wget abyz.co.uk/rpi/pigpio/pigpio.zip unzip pigpio.zip cd PIGPIO make make install — Install the “viewer”, the scope.. on your computer: http://abyz.co.uk/rpi/pigpio/piscope.html wget … Continue reading →

I got a 30 RGB Led strip with WS2812B: http://www.tweaking4all.com/wp-content/uploads/2014/01/WS2812.pdf Its digital, it operates on 5V.  Each led draws approximately 50 mA at 5 V with red, green, and blue at full brightness -> 1.5A 5v 2A power supply will … Continue reading →

Using these instructions: http://shop.ninjablocks.com/blogs/how-to/7506204-adding-433-to-your-raspberry-pi Interesting comment: I follow this guide and use RPi_utils to receive and send RF code to my RF devices, but it didn’t work. Then adding this line to the codesend.cpp did the trick: mySwitch.setPulseLength(207); For Arduino: … Continue reading →

This: http://shop.ninjablocks.com/blogs/how-to/7506204-adding-433-to-your-raspberry-pi and: http://www.disk91.com/2013/technology/hardware/raspberry-pi-receive-433mhz-radio-signal/ if the receiver needs 5v, remember the nice 5v->3.3v circuit: http://www.disk91.com/2013/technology/hardware/oregon-scientific-sensors-with-raspberry-pi/   Basically just install wiringPi, then the 433utils: root@rpi02:~# git clone git://github.com/ninjablocks/433Utils.git Cloning into ‘433Utils’… remote: Counting objects: 129, done. remote: Total 129 (delta 0), … Continue reading →