Archives: Projects
![MEMS Microphone Pre-Amplifier with Compression and Noise Gating – Studio Quality Microphone Pre-Amplifier MEMS Microphone Pre-Amplifier with Compression and Noise Gating – Studio Quality Microphone Pre-Amplifier](https://www.electronics-lab.com/wp-content/uploads/2021/09/001-3-1024x659.jpg)
MEMS Microphone Pre-Amplifier with Compression and Noise Gating – Studio Quality Microphone Pre-Amplifier
MEMS Microphones is setting a new performance benchmark across a growing number of industries. These innovative silicon microphones were designed to extend the benefits of the lowest possible self-noise (high SNR) and lowest distortion to an ever-expanding number of applications. The...
Continue Reading![AC Voltage Zero Cross Detector AC Voltage Zero Cross Detector](https://www.electronics-lab.com/wp-content/uploads/2021/09/002-4-1024x601.jpg)
AC Voltage Zero Cross Detector
This project provides AC voltage zero-cross timing detection and a DC voltage after diode rectification with high accuracy. Possible applications for such circuits are AC motor controllers, AC lamp controllers, AC Dimmer Controllers, Home Appliances. The circuit outputs a zero-cross...
Continue Reading![Precision Full-Wave Rectifier – Dual-Supply Precision Full-Wave Rectifier – Dual-Supply](https://www.electronics-lab.com/wp-content/uploads/2021/09/007-4-1024x685.jpg)
Precision Full-Wave Rectifier – Dual-Supply
This is a dual-supply precision full-wave rectifier board that can turn alternating current (AC) signals into single polarity signals. The OPAMPs, U1A, and U1B, buffer the input signal and compensate for the voltage drops across D1 and D2 allowing for small signal inputs. This...
Continue Reading![12V DC @ 120mA – 1.4W Universal Input Buck Converter – 85V AC – 265V AC INPUT 12V DC @ 120mA – 1.4W Universal Input Buck Converter – 85V AC – 265V AC INPUT](https://www.electronics-lab.com/wp-content/uploads/2021/09/007-3-1024x639.jpg)
12V DC @ 120mA – 1.4W Universal Input Buck Converter – 85V AC – 265V AC INPUT
The circuit shown in the schematic below is a typical implementation of a 12 V - 120 mA non-isolated power supply that can be used in appliance control such as rice cookers, dishwashers, or other white goods. This circuit may also be applicable to other applications such as...
Continue Reading![315Mhz RF Remote Transmitter – Arduino Compatible 315Mhz RF Remote Transmitter – Arduino Compatible](https://www.electronics-lab.com/wp-content/uploads/2021/09/006-3-1024x685.jpg)
315Mhz RF Remote Transmitter – Arduino Compatible
This is a two-channel RF Transmitter unit that consists of, Atmega328 microcontroller, 2 Tactile switches with pull-down resistors, a programming port, and a 315Mhz RF transmitter module. It is an Arduino compatible open-source project that can be used for many RF transmitter...
Continue Reading![315Mhz RF Remote Receiver with On Board Relay – Arduino Compatible 315Mhz RF Remote Receiver with On Board Relay – Arduino Compatible](https://www.electronics-lab.com/wp-content/uploads/2021/09/006-2-1024x761.jpg)
315Mhz RF Remote Receiver with On Board Relay – Arduino Compatible
This is one channel RF Receiver with an onboard Relay. The project can be used for ON/OFF control of AC or DC loads using an RF remote. It's an Arduino compatible Receiver project that consists of, Atmega328 microcontroller, 315MHz RF Receiver, 12v Relay, 5V Regulator, etc. Arduino...
Continue Reading![4 Channel 315Mhz RF Remote Transmitter – Arduino Compatible 4 Channel 315Mhz RF Remote Transmitter – Arduino Compatible](https://www.electronics-lab.com/wp-content/uploads/2021/09/arduino-programming.jpg)
4 Channel 315Mhz RF Remote Transmitter – Arduino Compatible
This is a 4 channel RF Transmitter unit that consists of an Atmega328 microcontroller, 4 x tactile switches with pull-down resistors, programming port, and 315Mhz RF transmitter module. It is Arduino compatible open-source project that can be used for many RF transmitter applications....
Continue Reading![Analog Style VU Meter on OLED Display – Arduino Compatible Analog Style VU Meter on OLED Display – Arduino Compatible](https://www.electronics-lab.com/wp-content/uploads/2021/09/018-1024x662.jpg)
Analog Style VU Meter on OLED Display – Arduino Compatible
This is an analog-style VU meter on a 0.96" OLED Display. The project has a 0.96" OLED display, Atmega328 Microcontroller, 3.5 mm audio EP socket for audio signal input. This Arduino compatible hardware can be program using Arduino IDE. Operating Supply 5V DC. Specifications...
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