Optocouplers or Optoisolators are mainly used for the electrical isolation between two circuits just using the light. SFH620A is an Optocoupler that has two parts i.e., two GaAs Infrared emitting diodes and a phototransistor, which functions by sensing the infrared light. It offers a high current transfer ratio, low coupling capacitance, and high isolation voltage … Read more
INA219 is a shunt Current Sensor module introduced by the Texas instruments. It is a Zero-Drift, Bidirectional, Power Monitor module that monitors shunt voltage, Bus voltage, current, and power. It has an integrated 12C or SMBus-compatible interface to communicate data to the microcontrollers. The chip has an analog-to-digital converter with a high resolution of 12-bit … Read more
In this tutorial, we will learn to use 1N747 Zener Diode with example circuits. It offers a Zener voltage (Vz ) of 3.6V with ±5% tolerance and a speedy reverse recovery time. Zener diodes are used for voltage regulation applications. Recommended Components The following parts are used in this article, along with a generic electronics … Read more
This topic will explore the pin configuration, interfacing with microcontroller/Arduino, features, and applications of AD8232 ECG module. The module AD8232 uses AD8232 analog IC. AD8232 IC is the main component of this ECG module. This chip performs three functions on small bi-potential signals in noisy conditions, such as extraction, amplification, and filtration. The final filtered … Read more
CCPM Servo Tester is a small compact module for monitoring the performance of servo motors such as consistency, direction, and ESC(Electrical Speed Controller). CCPM Servo Consistency Master/Servo Tester is a low-power, cost-effective device which can examine three servo motors at a time. The tester requires a maximum of 6 volts for normal functioning. It also … Read more
In this user guide we will learn to interface RCWL-0516 microwave radar sensor module with Arduino and program it for motion detection. We will discuss the components of RCWL-0516 sensor module, pinout, configuration, features, specifications, interfacing, 2D model, and applications. We have similar guide with ESP32 and ESP8266 NodeMCU: Recommended Components The following components are … Read more
TTP224 is a non-contact four-channel touch sensor IC designed to replace traditional buttons for effortless control. As the name suggests, it has four touch keys. It works by detecting the input capacitive touch and varying the capacitance to trigger the switch. Powering this IC needs only a few volts. It comes with an auto-calibration attribute … Read more
STM32F103C8T6 is one of the mid-range microcontroller units of the STM32F103x8 family based on RISC architecture. An integrated Blue Pill Development Board was introduced as a low-cost board as an alternative to STMicroelectronics STM discovery boards. The price of Blue Pill is around 2-3$. STM32F103C8T6 microcontroller comes with GPIO pins, processor, memory, USB port, Analog … Read more
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
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