An oscilloscope for the Pi, to check the states of the GPIO pins.
Install the daemon on the Pi:
http://abyz.co.uk/rpi/pigpio/download.html
wget abyz.co.uk/rpi/pigpio/pigpio.zip
unzip pigpio.zip
cd PIGPIO
make
make install
—
Install the “viewer”, the scope.. on your computer:
http://abyz.co.uk/rpi/pigpio/piscope.html
wget abyz.co.uk/rpi/pigpio/piscope.tar
tar xvf piscope.tar
cd PISCOPE
make hf
make install
—
Run the daemon on the Pi
pigpiod
Connect your viewer to the remote Pi:
remote_host ~ $ export PIGPIO_ADDR=PI_IPADDRESS
remote_host ~ $ piscope
Ain’t that GREAT.. 😀