From time to time, in Arduino world there comes up a project, which is simply breathtaking. Everyone likes something different, but this thing is really sensible. At first glance you may think – another glove for VR or controlling some console. Not exactly… This is automatic sign language translator. Thanks to an accelerometer and flex […]
Tag Archives: arduino
Galvanic isolation: optocouplers
For sure, you have heard the term galvanic isolation many times. In brief, it’s about separating the source of signal from the microcontroler in order to prevent it from unwanted and dangerous voltage spikes, while allowing to read the signal. Such a separation is provided by optocouplers. The optocoupler contains in common package both infrared […]
Arduino Shield List
While browsing links, which I collected during the weekend I noticed a intriguing site useful for everyone who utilizes Arduino. I’m talking about Arduino Shield List, and the title perfectly describes, what it is – a collection of informations about shields – who manufactures, which pins are used for what, etc. Observe it, even though […]
I2C in a slightly different way
In Arduino IDE there is Wire library available, supporting I2C protocol (you can read about it on Arduino pages, in irreplaceable Playground section). Todd Kurt wrote on his blog that he will make the code of a new library for I2C – SoftI2CMaster accesible through various projects related to BlinkM. How it differs from Wire? […]
Arduino Bluetooth on Ubuntu
Arduino Bluetooth – Arduino without USB port, with Bluetooth module instead. Ideal solution if wireless communication with Arduino is needed. At first – some differences to an ordinary Arduino Duemilanove. Arduino BT is based on ATmega168, so we have a little less memory at disposal. There is no USB port, so we have to power […]
3 in one – RGB diodes
Our blog has received support – a new writer (attentive reader probably know already who it is :) ), so new interesting posts are being prepared, while I am preparing, as usual, some colorful lights :) . Let’s begin from the end – a short movie. It isn’t impressing, because mobile phone camera doesn’t reproduct […]
Balancing robots – for dummies?
Balancing robots are those, which can maintain balance by themselves. And how it looks? For example like this. Author of the robot above began a interesting thread on Arduino forum: Balancing robot for dummies, where he promises to describe everything in a simple and aproachable way. If you are interested in this kind of robots […]
Tilt sensor
Nettigo offers tilt sensors with 30° and 60° (exactly from -30° to +30°) operating range. Tilt sensor is a kind of switch. The difference between it and regular switches is that the current starts to flow through it when it’s tilted. Such a sensors are commonly user in car alarm system They are monitoring car’s […]
Humidity sensor
Every amateur and professional meteo station requires humidity sensor to be completely happy. This sensor along with a termometer allows to forecast so called “dew point”. Dew point is a temperature at which (and at a certain humidity) vapor water condenses into water. Usually it produces dew on grass, but in specific conditions also allows […]
Temperature and LCD
In Nettigo recently appeared LCD kit for Arduino – it is 2×16 alphanumeric LCD with soldered connector fitting to a breadboard and 10 kΩ linear potentiometer for contrast regulation. The LCD module has HD44780-compatible controler, what means LiquidCrystal library will be able to handle it. How to connect it? Let’s begin from the code: #include […]