Content for Relay

Project Eden: Smart Garden

“Project Eden is a fully IoT equipped station that has the ability to monitor the humidity, moisture and temperature surrounding the soil. It also parses data from Willyweather (local weather station) to determine if a rain event is occuring, and …

IoT Based Smart and Secure Lock V2.0

“In this project we’ve built IoT based smart and secure lock which have 4 layers of access. RFID + PIN + Fingerprint + OTP. In this project we’ve built IoT based smart lock which have 4 layers of access. RFID + PIN …

Smart Plant Incubator

“Help your baby plants get the sunlight they need while protecting them from wild temperature variations. Why this project? Like many people, my parents grow plants from seed in the early spring. When the seeds sprout my parents place them …

Talking alarm clock with 8x8x4 matrix display

“Wake to any of 100’s of MP3 messages from SDRAM. Scrolling display w/remote shows clearly w/o glasses. Temp too! This is my second Arduino build. Lots of fab issues have been resolved and this is more of …

V-I Component Tester Interface v2

“If you have an oscilloscope, you don’t need to buy a V-I Component Tester. Development based on v0. This is a development of it by using transformers and relays. On this project I used 3V telecommunication relays. Particularly I …

Relay Shield PCB Design Useful for IoT Applications

“Relay Shield can be used to be control devices wirelessly with your smartphone from anywhere. Every household has electronic devices which are a major part of our everyday life like dishwashers, washing machines, boilers (water heaters), kettles. All of the …

The Ultimate Floor Cleaning Robot (v2.0)

“Around 5 years back I made a Floor Cleaning Robot (CleanSweep) from scratch, which was a hit and a lot of people followed the guide and tried making their own robot. But that design actually had some flaws. So last …

Rick & Morty Steampunk weather gadget

“Weather station with remote outdoor sense, FM radio, blinkey lights and secret hidden compartment. Woodworker/ retired industrial automation engineer on steampunk kick. Have designed Rick & Morty gadgets and now want to take it to the next level. Bought one of …

Project  Heat-o-matic

Heat-o-matic

“A proportional integral derivative (PID) controller that will be used to run a home-made precision heater. PID is a fancy way of saying that the code plays a game of ‘Warmer’, ‘Colder’ to get something to a particular value (in …

Low-Cost DC Motor Direction Controller with Fast Brake using 2 Relays

“The project presented here is a low-cost easy to use DC brushed motor direction controller with fast-brake, the project was built using two 12V Relays, 2 x BJT transistors, and 2 x tactile switches. The two LEDs are provided to …