Wireless Caller ID Display for Bikers
This simple telephone caller identification display can be very useful for bikers. While riding a bike or any two-wheeler, the cellphone is usually kept in a pocket. When you receive a...
Line Frequency Meter Based On Reciprocal Counting
Precise measurement of line signal frequency is very important in many applications, especially in the management of power grid systems. Tasks like calibration of governors of engines that run generators in...
AC Current Monitor Using Arduino
Obtaining AC current readings from an AC wire helps us to know the amount of power that electrical appliances consume, promoting effective maintenance of the required load and supply.
So today you...
Tricolour LED Nameplate With Arduino
Nameplates are generally made of wood, acrylic sheet, or a metal and fixed on a wall or kept on desk. The author’s prototype of an acrylic nameplate that can display the...
Milliamp Meter For 1mA To 100mA
Low-current measurements are generally not reliable due to resolution of the measurement devices, which are mainly meant for measuring a current of a few hundreds of milliamps to a few amps....
Position Controlled Linear Actuator with mm Level of Accuracy
Linear actuators are widely used in robotics and mechatronics. But getting their accurate position is complicated. Linear Actuators are very costly (prices start from 10K) and can go up to several...
RFID-Based Automatic Desktop/Mobile Phone Login Device
We have so many login passwords to remember in order to access our laptops, emails or online banking. And forgetting password is something that we often face, and when we are...
Making This Versatile Arduino-Based Frequency Generator Is Simple
This is a simple function generator that works in the audio frequency range. It can be useful for amplifier testing, experimentation in digital signal processing (DSP) and electronics labs. The author’s...
Design Your Own Low-Cost IoT Robot
There are many types of robots, from simple toy cars to advanced industrial robots. The Wi-Fi-controlled IoT robot described here uses NodeMCU and Blynk app. It can be controlled wirelessly using...
Talking LED Alarm Clock Using TM1637 LED Module
Every microcontroller project needs a display. An LCD display with one or two rows for characters is a good choice but it needs several wire connections to make it work. There...
