Vintage Bench-Top DC Hybrid Voltmeter

With a DC range of -25V to +25V, a voltmeter combining analog needle & digital LEDs to represent integer & fractional voltages respectively.

Diy Electronic Horn For A Bicycle Or Car

The LM555 generates an electronic horn signal which is amplified by an LM386. The tone and gain of the horn can be easily varied. The horn can be used in a car, scooter, cycle, and motorbike.

Psoc 4: Natural Gas Leakage Alarm System For Kitchen Safety

An analog heavy system that detects leakage of NG (Methane) from stoves, gas cylinder tubes inside kitchen and generates audiovisual alerts.

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.

Psoc 4: Wireless Programming

Instead of programming CY8CKIT-049-42xx PSoC 4 through USB, program it wirelessly via Bluetooth-UART link with HC-05 module.

Contactless Voltage Detector

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

Diy Musical Doorbell

Learn how to make a simple musical bell using the UM66T melody generator IC.

How To Make A Siren Generator

Learn How to Make a DIY Electronic Siren Generator circuit that can produce police car siren, emergency ambulance siren & fire brigade sound using the IC UM3561a Siren Tone Generator.

Easy Peasy Diy Non-contact Voltage Detector

Lets build a easy peasy DIY non-contact voltage detector to detect broken Electrical Wires, Unmarked Switch position and Lots more

Build A Lamp Web Server With Wordpress

Learn to set up a LAMP (Linux, Apache, MySQL, PHP) stack on your Raspberry Pi

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.

Avengers: Endgame Posters On Adafruit Pyportal

The Adafruit PyPortal IoT device is Python powered and used to display the Avengers Endgame character posters.

Design Bedroom Lamp

Lamp as an interior design accessory. Good idea for gift.

Pwm On Mikrobus Header Of Avr Iot Wg

Atmel Start only support PWM functionality for ERR (Red), DATA (Yellow) and CONN (green) of AVR iot WG board. Here we will learn to configure TCA timer in split mode to enable PWM on mikroBUS header of this board.

Build Your Own Chaosminer!

The Chaos Miner is a raspberry pi powered radio receiver that converts the entropy of the universe into use-able random numbers for the ChaosCasino! The ChaosMiner earns .5 NotioCoin for its owner when a random number is generated! The ChaosCasino is a blockchain powered Casino dApp operated by DecentraCorp.

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.

Youtube Subscriber Counter - Solderless, 3d Printable, Cheap

I've always wanted a YouTube counter for my channel but they often cost more than I wanted to pay and required a YouTube API key. This design is buildable for under £15/$18, does not need an API key and sits on top of a monitor, stands on a surface or can wall mounted.

C51 4 Bits Electronic Clock - Wooden Clock

Had some spare time this weekend so went ahead and assembled this AU$2.40 4-Bits DIY Electronic Digital Clock which I bought from AliExpress a while ago.