wifi radio with lcd display


Posted on Feb 6, 2014

This is the seventh part of an ongoing series about building a low cost, open source streaming internet radio. If you haven`t already, check out the previous parts (see the links at the end of this article) for some background about the project. In part six, we used OpenWrt`s UNIX-style shell commands to interface with mpd, the music player daemo


wifi radio with lcd display
Click here to download the full size of the above Circuit.

n, and redirect song and stream information to our ASUS WL-520gU wireless router`s serial port. In this part, we`ll use a Sparkfun 16G—2 LCD display and a handful of other components to build an LCD status display for the radio. After much thought, I decided to use an Atmel ATmega168 AVR microcontroller to drive the display. I realize that this raises the technical level of this project significantly, but I have been wanting to feature an AVR project on the site and this is a great opportunity. The truth is that an Arduino would work just as well and it shouldn`t be too difficult to port this program to an Arduino sketch. (The Arduino is built with the same ATmega168 microcontroller, after all. ) If anyone does this, let me know and I`ll post a link to your version of the display. If you are new to the AVR, don`t be intimidated. There are a number of tutorials online to help you learn how to use this inexpensive and powerful microcontroller. I recommend starting with this one or maybe this one, but see my note about AVR MacPack below if you`re using a Mac. If you`ve never programmed in C before, you`ll have an additional hurdle to get over, although for this project you won`t need any actual knowledge of programming or C to burn the code to the AVR and get things working. I recommend following a tutorial or two and getting a simple blinking LED example working on your AVR before building the LCD display. That way you can be...




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