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How To Make An Adjustable 555 Timer Relay Switch

Learn how to make a precisely adjustable timer with a variable delay from 1 - 100 seconds that uses the 555 IC. The 555 timer is configured as a Monostable Multivibrator. The output load is driven by the relay switch which is in turn controlled by the timer circuit.

Follow Me Light

use wifi singnal make light can auto on/off when you near it or leave.

Hacking Qualcomm (Quick Charge) QC 2.0/3.0 With ATtiny85

Get not only 5 volts but also 9, 12 volts (18 Watts max) out of any QC-compatible charger/power bank for supplying power hungry projects.

PSoC : Auto Ranging Ohms Meter

Utilizing IDAC to inject current through unknown Resistor & measuring Voltage across it with 12 bit ADC finally Ohms Law to find Resistance.

Contactless Voltage Detector

3 Ways to Build Your Own Contactless Voltage Detector For Less Than a Dollar

Real-time Laboratory Monitoring

Design and build a system to monitor the status of a Laboratory using the Microchip AVR-IoT WG Development Board.

Automatic Smart Plant Pot - 3d Printable

Sometimes when we go away from home for a few days or are really busy the house plants (unfairly) suffer. This is my solution a Smart Plant Pot which includes integrated water tank, soil moisture sensor, water level sensor, pump and status LED all controlled by an Arduino Nano.

Washing Machine Notifications

Get your "dumb" washing machine talking to Google Home and Android devices - never forget about the washing again!

Color Control For Rgbw Led Stripes

For using RGBW LED stripes properly, I was missing an easy control of color and brightness. Based on the PIC16F1827 I developed a control card using the serial line for communication and a Raspberry PI showing the Web based control page as part of my home control system.

Domestic Central Heating Radiator Efficiency Optimiser

IoT device to log input and output temperatures of a radiator. The plan is to get a display of temperature differential. One of the radiator valves can then be adjusted to change the water flow until an optimum drop is achieved. That is about 20F or 12C according to the Web, but Analytics on the data can help determine ideal.

All In One Led Light

Built Smart LED light with auto ON/OFF, brightness control and night mode using Microchip AVR iot WG development Board with Open Weather Maps and local time

Easy Ina219 Interfacing With Avr Iot Wg

The INA219B breakout board can measure both the high side voltage and DC current draw over I2C with 1% precision and help in solving the power-monitoring problems.

Smart Mirror ( A Server For Iot Devices)

IOT plays an important role in upcoming years. So why your home should be an ordinary house , lets make it most advanced smart home with all features builtin. It is basically an server for integrating all smart home appliances to work with each other from providing security till integrety.

Water Quality Monitoring Using Mkr1000 And Artik Cloud

Water quality data monitoring for swimming pools, fish aquarium and more!

Solid State Protection System For Various Ac/dc Applications

CoolMOS based isolated AC or DC load controller with ZVS switching and short circuit, overload, over/under voltage & frequency protections

Aquariumatic

Automated aquarium monitor with Web GUI. daisychain units can control multiple tank all from the one master unit. PI/Arduino/ESP Powered

Alexa/adruino/pi Smart Electric Water Heater

Save money on your electric bill using Alexa and some mad IoT skillz. Like a Nest for your water heater.

Multipurpose Relay Project With Open Source Android App

Control many different relay boards with your Particle devices from your phone, open source Ionic Android app included!