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 power plants need a resolution up to 0.01Hz. Frequency is also an important parameter in load sharing among several power plants in the grid. […]
Line Frequency Meter Based On Reciprocal Counting Read More »
In this project I will show you how I combined an Arduino, an INA219 power monitor IC, an OLED LCD and a Micro SD Card PCB in order to create a power meter/logger that has more functions than the popular USB Power Meter. Let’s get started! Step 1: Watch the Video! The video gives you
Make Your Own Power Meter/Logger Read More »
Presented here is a IoT enabled air pollution meter to monitor air quality on your smartphone using Blynk application and Arduino board. Blynk is an Internet of Things (IoT) platform to control Arduino, Raspberry Pi and the like over the Internet. In this project Blynk provides a digital dashboard on your smartphone that displays real-time
IoT-Enabled Air Pollution Meter With Digital Dashboard On Smartphone Read More »
Three-fourths of the earth is water, out of which 97 per cent is saline (in oceans, seas and groundwater). The remaining 2.5 per cent to 2.75 per cent is fresh water , out of which 1.75 per cent to two per cent is frozen in glaciers, ice and snow. Fresh groundwater and soil moisture constitutes
Microcontroller Projects: Sonar Water-Level Meter Read More »
From time to time, I see people trying to build an audio VU meter. In the analog era, that’s typically done with a voltage divider + a series of comparators; or using chips like LM3914/3915. Those chips are harder and harder to find, or you may need more resolution, or a different output profile. What
MCU based LED Arduino VU Meter Read More »
The app allows you to manage traditional air conditioners that are controlled through infrared remotes. Designed for the office environment, the app relies on the ambient brightness (measured by Tibbit #28) to determine whether the aircon should be running or not. In the office setting, no lights = no people = no need for the
Tibbo Project System-based Aircon Controller Application Read More »
All embedded lovers are familiar with multimeter which a great tool to measure voltage, current, resistance etc. A multimeter can measure them easily. But sometimes we need to measure inductance and capacitance which is not possible with a normal multimeter. There are some special multimeters that can measure inductance and capacitance but they are costly.
LC Meter using Arduino: Measuring Inductance and Frequency Read More »
Ever electronic device emits a certain amount of electromagnetic fields and we can use this radiation to learn a few things about the circuit. In today’s instructable I’m going to show you how to build your own electromagnetic field meter using an Arduino. This device can be used to detect mains voltage, static electricity and
Electromagnetic Field Detector using an Arduino Read More »
We all know about Electricity energy meters which are installed in everyone’s house or offices to measure the electricity consumption. At last of every month, many of us get worried about the high electricity bill and we have to look at the energy meter once in a while. But what if we can monitor our
IoT Based Electricity Energy Meter using ESP12 and Arduino Read More »
I needed a Lux meter for testing flashlights. There are some good lux meters available in the $15-25 range, but shipping always takes a long time and I needed it now. That’s when I realized that I had an unused BH1750 light meter module laying around, which I bought some time ago but never used
Mini Arduino Lux Meter Read More »
