I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Water and temperature monitoring systems are crucial across various industries, including the chemical, pharmaceutical, and ...

The MEAS weather shield with five environmental sensors on an Arduino/Genuino 101- and Uno R3-compatible board from TE Connectivity is available from Mouser Electronics. The five sensors are: the TE ...

This sensor is built for detecting ppm of certain gas molecules, such as VOC, ethanol, ammonia, Hydrogen sulphide, etc. This sensor can't distinguish different gas molecules. Please use the table ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot ...

If you’re going to develop another Arduino-compatible board these days, you might as well take a “kitchen sink” approach. The Smart Citizen Kit piles it on, including Wi-Fi, an SD card slot, and ...

The main challenge: PNP sensor is 24Voltages supply and Arduino works properly between 7 to 12Voltages. To overcome : Voltage Divider with Two resistors (R1 10kiloOhm , R2 7kiloOhm) is made to reduce ...

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical ...

The [Libelium] team wanted to help people in Japan measure radiation in their surroundings following the nuclear accident in Fukushima. Because of the affordability and seeming ubiquity of the Arduino ...

Arduino debuted its newest product, a single-board computer called the Uno Q, in conjunction with today’s acquisition ...