2N3819 N-Channel JFET – Example Circuits

2N3819 pinout diagram

2N3819 is a general-purpose N-channel Junction Field Effect Transistor. It operates in depletion-mode and requires reverse biasing to turn off. It is designed for medium to high range frequencies. Furthermore, it has a high gain for wideband frequencies and has an importance in VHF/UHF based systems. It is a small-signal device capable of fast switching, … Read more

PIC12F508 8-bit PIC Microcontroller

PIC12F508 8-bit PIC Microcontroller

PIC12F508 is an 8-bit middle range microcontroller from Microchip. Here, PIC stands for Peripheral Interface Microcontroller. PIC12F508 is a cost-effective, high-performance flash microcontroller that permits us to add intelligence to our projects. It comes with a high-performance RISC CPU with only 33 single-word instructions. All instructions take one cycle to execute except for the branch … Read more

2N5089 NPN Amplifier Transistor

2N5089 pinout diagram

2N5089 is an NPN amplifier bipolar junction transistor. It operates as a switch in saturation mode and as an amplifier in the active region. The silicon-based transistor is designed mainly for audio signal amplification to amplify the weak base signal and produce a strong output signal at the collector terminal in low power systems. This … Read more

WS2812B Addressable RGB LED Interfacing with Arduino

WS2812B Addressable RGB LED interfacing with Arduino

WS2812B is the most popular addressable RGB LED. Whether used for decorations or hobby projects, they are used for their easiness, bright colors, low required voltage. Most importantly, it contains an internal integrated driver that helps to control the color and brightness of RGB LED with a programmable feature. This programmable feature makes it smart … Read more

2N5457 General Purpose N-Channel JFET

2N5457 Pinout diagram

2N5457 is a general-purpose N-channel Junction Field Effect Transistor with Drain and Source interchangeable feature. It operates in depletion-mode and requires reverse biasing to turn off. Because depletion types MOSFETs act like a normally closed switch. It has high (AC and DC) input impedance, contrary to other MOSFETs.  It is a CMOS technology device used … Read more

5V Single Channel Relay Module

5V single channel relay module components

In this tutorial, we will discuss 5V single channel relay modules and their important features such as pinout, pin configuration details, features, working, interfacing with microcontrollers and applications. Relay is an electro-mechnical device which acts as a switch. DC electrical current is used to energize the relay coil which opens or closes the contact switches. … Read more

Nova PM SDS011 Dust Particle Sensor for Air Quality Measurement

SDS011 dust sensor pinout diagram

SDS011 is an air quality measurement sensor which can be used to get dust particles and smoke concentration in the air. More precisely, it can measure  particulate matter (MP) concentrations in the air.  It can detect the dust particles concentration between 0.3 to 10um. Most importantly,  Nova PM dust sensor provides an interrupt based response … Read more

GP2Y1014AU0F – Optical Dust Sensor

GP2Y1010AU0F optical dust sensor pinout diagram

GP2Y1014AU0F is an optical dust sensor that means it senses dust by using an optical sensing system such as a light source. It is used to detect dust particles in the air. Additionally, it can be used to measure air quality.  Its internal circuitry consists of a simple infrared light emitting diode and a photo … Read more

2SC828 NPN Amplifier Transistor

2SC828 pinout diagram

2SC828 is an NPN type silicon epitaxial planar transistor. It is used for switching and signal amplification in audio AF based applications. This transistor is designed for low power applications. Because peak and normal collector dc current is 100mA and 50mA respectively.  Recommended Components The following parts are used in this article, along with a … Read more

APDS9960 Proximity, Gesture and Ambient Light Sensor Interfacing with Arduino

APDS9960 Proximity, Gesture and Ambient Light Sensor Interfacing with Arduino

APDS9960 is a sensor that detects six different gestures, detects proximity, senses ambient Light and provides information about the presence of Colors Red, Green, Blue or Clear. It consists of a built-in UV, IR blocking filters, an I2C compatible interface, and four separate photodiodes. Furthermore, it detects gestures by sensing IR light waves reflected from … Read more