The information below will help you setup a Raspberry Pi 2 or 3 to automatically load a predefined webpage in Chromium from boot with no user interaction.
Instead of using a costly full blown MS Windows desktop PC we can use a Raspberry Pi that not only costs hundreds of pounds less to buy but also consumes a minor percentage of power that a full desktop uses as well as being small enough to attach to the rear of the display device.
Continue reading Raspberry Pi Chromium
On powering/reset of the Raspberry Pi connected to a relay board, the state of the relays needs to be defined or they just sit in limbo.
Depending on your project it might not matter what state the relays are when the RPi is turned On but for the piTank it is critical! (battery backup to come… but still this solution is needed)
For my piTank project The ‘original‘ WebUI does have a script on loading the webpage to define the pin modes but if there is a power cut and the RPi is restarted, we need these values set and activated when the RPi boots in case nobody loads the piTank webpage directly after a reboot – thus critical components wont be turned on.
The fix to this issue is gpiobootscript.sh
Continue reading Raspberry Pi GPIO Start-up Script