Smart bulb or smart LEDs are energy-efficient and multicolour lights that can be controlled by your Android phones, iPhone, iPad and tablets. These smart bulbs can cost anywhere
An LCD screen can makes your simple Arduino projects look a lot cooler. A typical Arduino TFT LCD touch screen can cost around £20 from Adafruit for instance.
In robotics projects there are needs to detect obstacle such as a wall. The famous Roomba, for instance, has wall sensors that detects obstacles and thus prevents it
Non-contact infrared thermometers are widely used in medical and industrial application. In medical applications, digital thermometers have been replacing mercury stick thermometers due to more convenient measurements and
A good power supply source is essential for microcontroller-based project. Having a Uninterruptible Power Supply backup circuit is essential for microcontroller projects where we need constant power source
Introduction The purpose of this article is to describe a simple design of a high gain transimpedance amplifier for photodiodes. Transimpedance amplifiers(TIAs) are commonly used to translate the
Bass sensitive lights are lighting units which react to the bass of music and flash to the beats. They are great for professional or private use at parties
Light Emitting Diodes (LEDs) require a DC forward bias current to output light. The characteristics of an LED is such that there is a operating region where the
Introduction Microcontrollers are often required to generate timed output nanoseconds pulses. The pulse width of the pulses that can be generated from a microcontroller is limited by its
Introduction This circuit presented in this post, an APD bias circuit, generates a low-noise bias voltage for avalanche photodiodes (APDs). The circuit employs a low-noise fixed-frequency PWM DC-DC
Introduction RC522 are cheap RFID modules that can be used to read and write data on Mifare tags. The microcontroller and the module uses SPI for communication. The
Introduction This post talks about how to implement an Arduino wireless communication system using two HC-05 modules. These modules were introduced in Arduino Bluetooth Interface and they can be configured
