The installed PiDP-11 I/O Expander Each expander board gives you 16 GPIO pins which can be accessed over I2C, including support for interrupts which has been connected to GPIO 19 on the Raspberry Pi.
One possible way to do so is suggested by [Doctor Volt] in a video where a Samsung Galaxy S4 is combined with a USB-connected FT232R board to add external GPIO. The idea is pretty simple ...
The Mecha Comet is made for hackers and makers, running Debian with a custom touch UI and lots of upgradeability.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results