Lucky Resistor has build a PWM fan controller using Arduino and DHT22 sesnsors. The fan controller described on this project page, controls one or more PWM controlled 12V PC fans. It uses the input from two precise DHT22 based temperature sensors. The MCU is an Arduino Uno, which is...

Sanket Gupta @ octopart.com discuss on how to choose a connector. He writes: Continuing our series about choosing parts, inspired by the latest version of the Common Parts Library, let’s take a close look at how to find and select connectors. In this blog, we will explain all the...

Susan Nordyk@ edn.com: These micropower low-pressure sensors operate from a supply voltage of just 0.9 V to 1.8 V and are intended for use with noncorrosive, nonionic working fluids in such applications as medical devices and instrumentation, environmental controls, HVAC equipment,...

Developing a hardware project became much easier thanks to the growing number of the various sensors and actuators modules, which give you the ability to shift your ideas into a wider range of applications. This tutorial presents the steps of how to use OV7670 Camera Sensor Module STM32...

Hi! Today I'll explain you how to recover your bricked ATtiny microcontroller using your Arduino board. ATtinys are very popular due to their small form factor yet very powerful. While working with them you may accidentally brick the ATtiny. As arduino is extremely popular and really...

The electronics engineer and microcontroller programmer expert, Masih Vahida has launched his latest SoundDuino Arduino shield product: SoundDuino 3! SoundDuino is a WAV Sound Player & Recorder Shield for Arduino. This sound shield let you record and play sound files to or from a...

Programmable thermostats are cool things. They let you set the room temperature according to your schedule and will automatically make those adjustments for you. If you use them the way they’re intended to, they could be a great way to save on home energy costs. They work perfectly...

A research team led by faculty scientist Ali Javey at Berkeley Lab have debuted the smallest transistor ever reported. A gate structure of just 1 nm long can bring Moore’s law back again after the demonstration of the recent Silicon (Si) transistor with 5 nm gate. It was predicted that...