shermanpk
Posts: 2
Joined: Thu Jan 31, 2013 9:31 am

IR I/O via GPIO

Thu Jan 31, 2013 10:11 am

I am looking for a board or to make a board that I can use to connect an inferred receiver and transmitter (and perhaps an LCD display) making use of the GPIO port. I can do / have done most of the programming (a friend of mine is a recent programming graduate) and is looking for things to do.

Any off the shelf parts? or will I have to get a soldering kit and some parts?

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MattHawkinsUK
Posts: 538
Joined: Tue Jan 10, 2012 8:48 pm
Location: UK
Contact: Website

Re: IR I/O via GPIO

Thu Jan 31, 2013 11:06 am

If you want a basic LCD screen (16x2 or 20x4) then these are cheap and easy to interface with the GPIO

Image:

16×2 LCD Module Control With Backlight Switch
http://www.raspberrypi-spy.co.uk/2012/0 ... ht-switch/

20×4 LCD Module Control Using Python
http://www.raspberrypi-spy.co.uk/2012/0 ... ng-python/

The interface is mainly a few wires and some resistors. I added a transistor so I could turn the backlight on and off.
My Raspberry Pi blog and home of the BerryClip Add-on board : http://www.raspberrypi-spy.co.uk/
Follow me on Google+, Facebook, Pinterest and Twitter (@RPiSpy)

rudiratlos
Posts: 137
Joined: Tue May 01, 2012 8:47 am

Re: IR I/O via GPIO

Thu Jan 31, 2013 3:15 pm

Hi,

the new piggy-back board (rev2) will have IR receiver and IR transmitter.

LCD Display can be connected via serial port or via I2C (see a nice OLED device: http://www.seeedstudio.com/depot/grove- ... th=163_167)

I think that the rev2 board will be available in 1-2 weeks from now.

shermanpk
Posts: 2
Joined: Thu Jan 31, 2013 9:31 am

Re: IR I/O via GPIO

Thu Jan 31, 2013 11:09 pm

Hi rudiratlos, do you have a link to the Piggyback board (rev2)?

I can't find it.

Thanks for the quick reply.

slimjim
Posts: 3
Joined: Thu Jan 24, 2013 2:30 pm

Re: IR I/O via GPIO

Thu Jan 31, 2013 11:24 pm

There are some kits around like this one at Sparkfun: https://www.sparkfun.com/products/10732

I'm pretty sure that I've seen some assembled ones as well, but I can't find a link right now. I've built one myself... so it's not that hard ;)

I've written up a post on setting up the Raspberry Pi to send/receive IR signals and there's a web interface that can control the LED:
http://randomtutor.blogspot.co.uk/2013/ ... ry-pi.html

I've used the LIRC module for the IR controls, which needs the latest firmware installed on the Pi.

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