I was in Bhutan last December, and as we travelled to different locations, I kept wondering what the temperature and altitude was, and wished I had some gizmo that would show me these values. Back home, I did a bit of research on altitude sensors, and one that came up was the cheap BMP180 sensor. […]
Temperature / Altitude / Pressure Display using BMP180 Continue Reading
Its quiet fun to work with RFID based projects! In the previous article, we saw how to interface RFID with Arduino. Interfacing is the first step to create any useful project. So why don’t we create an RFID based Access Control System or an RFID based Door Lock using Arduino? The system I have designed
Simple RFID based Door Lock using Arduino Continue Reading
Intro It’s quite a common problem when building electronics that some components need cooling which is usually done through some sort of heatsink and optional fans. Choosing the right cooling solution can be a difficult task because the real life behavior of the system is hard to predict or model. In my case I have
Heatsink Tester Continue Reading
In this project we will show how to build WiFi controlled thermostat with ESP8266, Arduino and touch screen display. Thermostat will also show other info, like weather forecast and temperature outside. Total cost for thermostat is about 40EUR, which is price for basic commercial thermostat in shop. Basic features: 6 modes – Auto, Off, LOLO,
ESP8266 WiFi touch screen thermostat Continue Reading
Richard over at ESP8266 CommunityForum writes, “I have setup a new section for ESP8266 Arduino as IGRR and myself have successfully ported the Arduino IDE over to the ESP8266 and have it all working very nicely now. ESP8266 Arduino and the code is on github, we have also set up a compilation server and executables
Arduino IDE released for ESP8266 Continue Reading
Our sensor technology is ideally suited for any project requiring very compact, low power, high performance distance measurement sensors, such as drones, robots, or unmanned vehicles. PulsedLight’s novel signal processing technology enables us to offer a low-cost optical distance measurement solution with performance comparable to systems costing hundreds of dollars. “PulsedLight takes distance range finding
Optical Distance Measurement Sensors Continue Reading
Computer chips, solar cells and other electronic devices have traditionally been based on silicon, the most famous of the semiconductors, that special class of materials whose unique electronic properties can be manipulated to turn electricity on and off the way faucets control the flow of water. There are other semiconductors. Gallium arsenide is one such
New process could make gallium arsenide cheaper for computer chips, solar cells Continue Reading
Quin Etnyre has been into all things Arduino since he was a kid. He already has 28 Instructables published, founded his own company called Qtechknow in 2012 which sells ArduSensors and a line of fun and educational kits and oh, he is still just 14 years old. His latest Arduino-based design is the Qduino Mini
The TCS3490 device provides color and IR (red, green, blue, clear and IR) light sensing. The color sensing provides for improved accuracy lux and color temperature measurements typically used to adjust the backlight intensity and correct the display color gamut. Additionally it can be used for light source type detection as it reports the IR
TCS34901 Color Sensor Color light-to-digital converter with 5th IR Channel Vdd I²C Continue Reading
Yep, no transformer and no hard to get IC. But, … two transistors and other parts are required. I actually found this circuit by accident while roaming Colin Mitchell’s Talking Electronics website (talkingelectronics.com). This website is very rich with examples and explanations of a huge variety of circuits. In fact, this website is so abundant
Joule Thief” – no IC and no Transformer Continue Reading
