The 1.8″ TFT display that I use with my Raspberry Pi is really fun, but setting the kernel to work with it was a nightmare. Not any more thanks to the work of @notro. With the following instructions, you can…
I have had a good share of frustration with damaging Raspberry Pi SD cards due to wearing out/improper shut downs as a result from power failures and was looking for solution to this sort of problems for a while. At first…
I have found my Raspberry Pi running the root file system off a USB flash drive in no good state this morning, the following error showing up on emoncms that was installed locally: Can’t connect to database, please verify credentials/configuration in…
When interfacing my gadgets to the physical world, I often need to deal with IR of all sorts: air conditioners, TV, audio equipment, media center and so forth. These are all of different brand, so naturally the IR protocol that…
I use emoncms to log telemetry readings from various sources (wireless sensor nodes, software bots etc), the so logged data helps my IoT connected gadgets make decisions, based on pre-defined rules. For example, my heat pump monitors outside weather conditions (temperature,…
There was a blog post on http://raspberrypi.org couple days ago about a pong clock, these seem to be quite popular these days. A simple search on hack-a-day shows dozens of such projects, so the idea is not new. Still fun…
As I continue my quest for reliability of my Raspberry Pi computer, I stumbled upon something interesting that I didn’t know existed – hardware watchdog for Raspberry Pi. For those hearing this term for the first time, a watchdog is…
I have had enough of damaged Raspberry Pi SD cards due to frequent power outages here. This week I have ended up with damaged SD card number three and had to take measures to prevent this from happening again and…
Here is a small project for social network connected home appliance, done for the sake of fun, but provides a good learning experience. I will be connecting my coffee machine to Twitter since I am one of the 6 people…
I have been receiving requests to build a SMS doorbell from all around the world ever since my SMS doorbel project got featured on hackaday, damnGeeky, hackedgadgets and few other places . My approach is relatively difficult to follow, so I decided to…
For a number of reasons I have my DD-WRT-based router shut down WiFi at nights, that though causes some inconvenience to my Raspberry Pi. I have it connected with a RTL8188CUS based WiFi dongle, the cheapest found on eBay. The problem is that…
I have always wanted to connect my remote RFM12B -based nodes to the Internet, I have finally managed to do so. It was relatively easy, based on the excellent work of Adam Neilsen with his SerialIP library SerialIP is a port…
Here is a fun project to try out: a Siri-like voice talk with your Raspberry Pi, its a lovely way to attract youngsters and keep them entertained for a while. I use three components for the project, code is mainly…
The Raspberry Pi TFT PCB that I described here has arrived yesterday; I quickly soldered my TFT on it and gave it a test. ll works great, here is a small demo:
I enjoy my DIY TFT board so much that I decided to create a more permanent setup. I laid out a board design that will have non-rectangular shape and supposedly fit better on-top the Pi. Here is how it…