This article describes how to build a simple and low-cost digital kitchen weighing machine, which can measure weight of up to five kilograms. This digital weighing machine is easier to design. For a heavy-duty weighing machine like your bathroom scale, just change the load cell or strain gauge. Everything else remains the same. Circuit and […]
Send temperature and humidity data from an Arduino MKR1000 to Microsoft Azure. Things used in this project Hardware components Arduino MKR1000 Arduino MKR1000 × 1 DHT22 Temperature Sensor DHT22 Temperature Sensor × 1 Software apps and online services Microsoft Azure Microsoft Azure Arduino IDE Arduino IDE Visual Studio 2015 Microsoft Visual Studio 2015 Story Paul […]
Send status messages of your MKR1000 via Pushover service to your mobile phone, etc. Things used in this project Hardware components Arduino MKR1000 Story An IoT node must be trimmed to reduce current consumption due to battery life. A WiFi-based node as Arduino MKR1000 needs a lot of current while sending. To avoid a high […]
We can measure temperature and humidity inside the fridge using a normal temperature-humidity indicator but relative humidity (RH) could be inaccurate in that case. The moment the fridge door is opened, RH will shoot up due to ingress or egress of moisture in the surroundings. The small sniffer device, described in this article, picks up […]
In any power utility corporation ash dyke management is a huge issue. For fugitive dust control huge sprinklers that spray water all along the dry portion of the dyke are used but maintenance of these sprinklers is a problem as we really don’t have any idea when it’s going to rain or when it will […]
The aim of this project is to save lives of people who are crossing unmanned railway crossings; by providing an automatic railway gate solution. There are many accidents occurred and lives are lost while crossing the unmanned railway crossings in India. Materials Used: Wood Thermocol Train and Track, Electronic components: IC L293D IR Sensor set […]
This reaction time game tests the time taken by two players to react, and declare the fastest one as a winner. To do this I am using external interrupts and pin change interrupts in atmega328p. It gives four chance to each play, time of each chance is summed up and then the player with minimum […]
It is not just another Engraved LED lamp that you see on the market nowadays. This is an advanced version of that lamps. In the era of connected devices, I have made my own connected lamps. This project is inspired by Filimin: A Wi-Fi Enabled Touch Light That Connects You. I truly loved this product as in this […]
Since Internet of Things (IoT) projects are now quite popular, I recently bought a NodeMCU board to try IoT application development. The NodeMCU development board is an open source board based on ESP8266EX microcontroller with integrated Wi-Fi transceiver. Uploading programs to NodeMCU from any computer via microUSB port is very easy as it supports several […]
A digital soil moisture meter is used for indicating the water content of a given soil sample. As crop production requires water at different stages and in different amounts, it is important to measure soil moisture from time to time to know its status. The digital soil moisture meter circuit presented here, for monitoring the […]
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