Here is a nice little project that helped me to geting to know the Digispark. It’s a little servo tester with two modes:
- Automatic sweep (S)
- Knob control (K)
As part of my robot project I need a small microcontroller to do som basic task like measuring distance using a HR-SR04 sensor. I plan to use a raspberry pi as main controller for that robot and as is runs a linux kernel is is not realtime and might be inaccurate for this application. The goal is to have the microcontroller send the measured distance over i2c to the raspberry pi.
The Ultrasonic module works as explained in the following diagram:
Lot’s of different examples regarding the HR-SR04 and microcontrollers can be found on the internet. Unfortunately a lot of them are incomplete or contain bad code. So here is yet another example 🙂
Below you can find a very basic schema with a attiny2313, the HR-SR04, an ISP connector and a led with a resistor.
The guys from www.electrobee.com were so kind to offer me a GameIO card for review. So here it is.
The GameIO, previously called Xiltendo CPLD Starter, is a slot-2 device that adds I/O capabilities to your DS. In a way it is similair to DSerial. It should be fun for a lot of electronics projects.
FON is the largest WiFi community in the world. FON is a Community of people making WiFi universal and free. FON’s vision is WiFi everywhere made possible by the members of the Community, Foneros. Read all about it on www.fon.com.
The fun part comes where FON has developed it’s own Wifi routers that can be bought for cheap.
These routers are fairly easy to hack and allow other firmware to be put on it. However you can also download the source code of the original firmware and add your own software to it. That what’s this article is all about. Modifying your FON but keeping the FON community alive!.
This article is about connecting your Wii Remote to a PC. It describes various tools and programs to get you started. Once connected you can use it for various purposes like gaming, controlling slide in a presentation or just zapping through your audio/video playlist.