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Patrons spent two evenings building circuits and programming microcontrollers in this hands-on workshop using the Sparkfun Inventor Kits and the Redboard Arduino clones.
Blipfoto Post for Thursday 21 June 2012: Tinkering
After last nights successful trial of the Arduino project I'm adding the last couple of hardware components before getting into refining and extending the code to be fully functional. This evenings task was to add the program selector switch which can be seen here on the control box together with the power switch, start button, power and data connections and the USB programming socket.
This is a quick schematic of the output stage I have been using on my Arduino audio experiments. Note that it assumes a 3.3V version, so 5V people may need to increase the 3.3K resistors to something bigger to keep the audio signal to 1V peak to peak.
I am a really bad at soldering, but it only took me about 1 hour to figure out what to solder and how to hook it up to the Arduino board. I just used the example code for LiquidCrystal to test it and left the contrast/backlight at the default settings. This page helped alot in identifying the pins on my LCD: www.arduinoprojects.com/?q=node/13
We had a guest come and show students in Mark Snyder's Electronic Music class how to use an Arduino board and some potentiometers to build a basic synthesizer.