G+_Jennings Mercer Posted September 26, 2014 Share Posted September 26, 2014 Hi first time posting and first major raspberry pi project. Looking for some good info on maybe what someone has tested on or used in the passed? Out line of my project is to make a voltage meter range 0 to 10 volts. With a display, LEDs (1led = 1 volt, 32 led = 10 volts) and and sound that varies as voltage increase. So I can see and hear the voltage increase from a distance. Two leads for voltage input. I---------------------I I. Display I I. I I. I I----------------------I O LEDs OO OOO OOOO OOOOO OOOOOO OOOOOOO OOOOOOOO OOOOOOOOO OOOOOOOOOO Speaker Two lead for voltage input Link to comment Share on other sites More sharing options...
G+_Travis Hershberger Posted September 26, 2014 Share Posted September 26, 2014 I have a couple 8x16 1.2" LED blocks from Adafruit: http://www.adafruit.com/products/2037 The I2C controller chip makes hooking up and controlling all those LEDs much easier. I'll post the short video I've got of two of those running through a test sequence in a minute. Python code to run them is around online. Someone has even already gotten letters/numbers in python code you could use. Link to comment Share on other sites More sharing options...
G+_Jennings Mercer Posted September 26, 2014 Author Share Posted September 26, 2014 Thanks any thoughs on a volt meter input to raspi Link to comment Share on other sites More sharing options...
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