close
close
close
Home Tags DIY projects

Tag: DIY projects

Presented here is a window alarm annunciator based on Arduino Uno board. An annunciator is mainly used in process plants, power plants and industries to monitor various plant conditions to alert operators about abnormal conditions or parameter deviations. It...
This video explains how to create an alarm that is activated when something or someone, blocks a beam of light - a simple security alarm. With the addition of a relay, this circuit can be modified to control lights,...
Introduction This project describes how to make the alarm clock radio in Arduino. The main feature of this project is that it will display date, time, will Alarm on the desired time and it has a function of radio too....
Here is a low-ripple and low-noise 48V regulated phantom power supply for an audio preamplifier and driver. Such power supplies require well-filtered, low-ripple and low-noise output voltage with current less than 200mA. These are relatively rare and expensive. Presented...
The Internet of Things (IoT) is being widely used in industrial and commercial applications. This article describes how to monitor things or devices connected to WeMos D1 board, which acts as a Web server. Pin description of WeMos D1...
This project is based on a capacitive touch sensor for controlling four electrical appliances. Toggle switches have been used for operating lights or fans, and momentary press switches for operating electric doorbells. Most of these switches are mechanical and...
Described here is an electronic system for stopping tank overflow. It is capable of keeping the water-level between any two of the eight predetermined levels, starting from the bottom to the top of the water tank. The technique The system uses...
In this project, an old Bluetooth headset can be used, along with a cellphone to make a robot controller, without a microcontroller (MCU) or any programming. Communication between the robot car and the smartphone is done via Bluetooth. This...
This circuit monitors light in surrounding areas at all times, displays light level on the LCD and sounds an alarm when light level becomes low. Such systems are being developed and used in such applications as healthcare, defence, mining,...
Electronic or flameless candles are an alternative to traditional wick candles. These are used for home décor and do not carry the risk of fire as these have LEDs that glow instead of an open flame. This project shows how...