Dual Relay Driver Board
https://www.electronics-lab.com/project/dual-relay-driver-board/
Description Dual Channel Relay Board is a simple and convenient way to interface 2 relays for switching application in your project. Input – 12 VDC @ 84 mA Output – two SPDT relay Relay specification – 5 A @ 230 VAC Trigger level – 2 ~ 5 VDC Berg pins for connecting power and trigger […]
Solid state relay switch
https://www.electronics-lab.com/project/solid-state-relay-switch/
Description Solid State Relay Switch is a simple kit which will help you control (ON / OFF) a single high power circuit from a low power drive. Load – 24 to 240 VAC @ 500 W Trigger voltage – 2 to 5 VDC (TTL) @ 10 mA Input isolated with use of Optocoupler Power Battery […]
IR Remote Volume Controller
https://www.electronics-lab.com/project/ir-remote-volume-controller/
Schematic Parts List
Audio VU meter 9 leds
https://www.electronics-lab.com/project/audio-vu-meter-9-leds/
Description 5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses SUPPLY 12V DC @ 50mA PR1 REF SET PR2 AUDIO LEVEL SET Schematic Parts
Flyback Transformer Driver
https://www.electronics-lab.com/project/flyback-transformer-driver/
General Description and circuit operation This is an efficient flyback driver for modern cylindrical rectified television flybacks. Many sites doesn’t provide circuits driving these transformers, they simply say that they are bad. I don’t agree. In fact I built this circuit. I spent a lot of time for finding resonant frequency (around 15Khz) and duty […]
Tiny DDS – Open source DDS generator
https://www.electronics-lab.com/project/tiny-dds-open-source-dds-generator/
This project is an open source (hardware & software) DDS generator, based on: smart TFT module, AD9834, LM7171 fast amplifier. Description The homemade function generator is a quite common project on the internet. We can find different ways to do it: The quick & dirty way based on a DDS module bought on eBay The analog […]
NiCad-NiMh Battery Monitor
https://www.electronics-lab.com/project/nicad-nimh-battery-monitor/
This project is a NiCad-NiMh Battery Monitor based on LM3914 IC Description The simple project can be used as test gear. Its easy way to monitor the battery voltages, especially dry cell, NICAD, NIMH, supply up to 1.5 Voltage. Battery Monitor range 0.15V to 1.5V. The project is built around Texas instruments LM3914, The […]
Advanced LC meter
https://www.electronics-lab.com/project/advanced-lc-meter/
This project is an advanced LCR meter based on PIC16F690 microcontroller. Description After finishing my last project – “Simple LC meter“, there were some discussions in the forum I am a member of, that ability to measure electrolytic capacitors would be very useful in this type of device. I searched the Web and found […]
Simple LC meter
https://www.electronics-lab.com/project/simple-lc-meter/
This project is a simple LC meter based on PIC16F682A mcu. Description Here is another piece of laboratory equipment – LC meter. This type of meter, especially L meter is hard to find in cheap commercial multimeters. Schematic of this one came from this web page:https://sites.google.com/site/vk3bhr/home/index2-html. It uses PIC microcontroller 16F628A, and because I […]
Thermocouple Type-K amplifier
https://www.electronics-lab.com/project/thermocouple-type-k-amplifier/
This project is a simple Thermocouple K-type amplifier based on AD595 IC. This amplifier converts the thermocouple output voltage (uV) to 10mV/C. This voltage can be easily further converted by an ADC of any microcontroller. Description AD595 Thermocouple Type-K Amplifier is manufactured by Analog Devices and is powered in the range of +5Vdc to […]