This sketch makes the Arduino work as a GPIO interface for a computer, where input and output changes are transmitted in run-length encoding. Every time an input pin changes, the Arduino sends the new values of the input pins and the time since the last change. In a similar way, the Arduino can be programmed a sequence of output pin changes, each specified by the new values of the output pins and the time since the previous change.
Three application programs are included: the first makes two digital pins act as a TTL-levels UART; the seconds turns the value of the input pins into an image; the third reads codes from infrared remotes with a photodiode and a resistor connected to one of the input pins.
Features
- make two digital lines a TTL-levels UART
- with a photodiode and a resistor, read signals from remotes
- simple logic analizer
Categories
Embedded SystemsLicense
GNU General Public License version 3.0 (GPLv3)Follow RunLengthGPIO
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