I2C LCD 20×4
One of my recent RPi projects involved the use of an 20×4 LCD. This an HD44780 driven LCD, they are very popular, this guide is […]
RPI
Serial Nightmare
Connecting a serial device to raspberry pi should be dead easy…well…it is not…sometimes it can be a real nightmare. There are two main reasons for […]
I2C Permissions
Ever tried running a python script as a cron job or as an snmp script that involves I2C access only to get Error (13) Permission […]
RPi Hardware Version
Checking the HW version/model of your Raspberry PI is dead easy. Just issue command: cat /etc/proc/cpuinfo This will give an output similar to the […]