After writing about little touchscreens for the Raspberry Pi (TinyLCD, AliExpress LCD), the official Raspberry Pi Touchscreen, now a post about HDMI monitors. I have several now and each has it pros and cons. As usual, the one you use will be dependent on the project and it is nice to have choice. Read More
The combination of Arduino, such as the Uno with the ATmel ATmega 328P, and the Raspberry Pi is a natural one. The RPi is an allround computer with I/O facilities and a general purpose, though not real-time, operating system. The Arduino is a programmable microcomputer with also lots of I/O including lots of digital I/O, analog inputs and PWM outputs, made for running a dedicated program with precise real-time performance. Where bitbanging I/O on the RPi is not such a good idea, on the Arduino on the contrary it is common. Exchange data via the serial ports to let both platforms enhance each other and work together.
I have two boards that add an Arduino experience to the Raspberry Pi: the RasPiO® Duino and the GertDuino. Both function well. The RasPiO® Duino is a simpler, better supported, better designed and cheaper solution, though you have to solder it yourself. The GertDuino is ready to run, more powerful, since it has two ATmega IC’s (a replaceable 328 in DIP and a 48) but a bit rough on details.
I prefer the RasPiO® Duino. £14 including postage worldwide.. Much better supported and designed, runs on all RPi models and on jessie. The GertDuino, €30, is a nice, build, and powerful board, Arduino compatible, two ATmega’s, with RTC and IRda, but takes away more of the RPi GPIO like I2C, and is a bit rough to work with and with much less support, the Reset issue, the board space wasted for a non-functional and not present powersupply, and seems to have problems on RPi model 2 and on jessie. Read More
This is my second test of the timelapse/video facilities of a Raspberry Pi with the camera on top.
So I did a standard RPi Cam Web Interface installation, on jessie this time since the installer is not completely finished at the moment for jessie. It went without a problem again. Only advice I have is to configure the wireless interface before adding the RPi software, so that Apache sees both ethernet and wireless. The WLAN with long antenna operates fine in the garden! Read More
When surfing for information on 3.5 ” TFT touchscreens for the Raspberry Pi, to improve the TinyLCD experience, I stumbled upon AliExpress where several shops offer a 3.5″ LCD TFT Touch Screen Display for incredible low prices.
So I ordered two for the price of $14,85, postage included. A acrylic case and stylus is also included in that price! The shop Soonics has good reviews, but you never know if one can trust that.
Here my experiences with the screen: quite slow refresh, not too high contrast, crisp screen, touch works, software works but is already outdated, but considering the price this screen is well worth the money! If I compare it to the NeoSec screen it is a better deal for applications with a high contrast theme and no demand on smooth video.
One of the exciting projects with the Raspberry Pi and the camera used to be the timelapse video.
And it has been the main reason I bought a camera and a case fit for timelapse.
The ESP8266 is one of the game changing building blocks of the Internet of Things. It can serve many purposes with its Wifi functionality and has enough I/O facilities to replace an Arduino or Raspberry. Strictly 3.3V, and a bit powerhungry for battery use. Read More
To get to know the Arduino world better I have bought from ebay two kits: 37 in 1 sensor kit and an Arduino kit. Nice boxes with an interesting array of components to get me started! Read More
I use several Arduino cases during my experiments, available from ebay for a couple of dollars, made of acrylic clear plastic. Here I show you two of my favorites. Read More
With all the different revisions and the two major supplier it will come as no surprise the packaging has varied quite a bit. I have kept the boxes of my Raspberry Pi’s, shown here. Read More