nRF24L01PA LNA module

Ultra-Low-Power Sensor Hub Using nRF24L01 Modules Using Arduino

Presented here is an ATmega328P microcontroller-based ultra low power sensor hub using nRF24L01+ radio frequency (RF) transceiver modules having transmitter and receiver units. The transmitter sends humidity and temperature values of a place to the receiver kept at a remote location for display on an OLED module. The nRF24L01+ module used in the receiver unit …

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circuit diagram 1 (1)

Automatic Railway Gate for Unmanned Railway Crossing Using Arduino

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 …

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Circuit diagram of the transmitter unit (1)

Microcontroller Projects: Fridge Temperature and Humidity Indicator Using Arduino

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 …

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MKR1000 Cover 4x3

MKR1000 Temp and Humidity Sensor Using Arduino

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 …

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Authors prototype on the breadboard

Temperature Monitoring on Smartphone Using Arduino

This article describes a temperature monitoring system on an Android smartphone. Temperature is sensed by a temperature sensor installed in the circuit and is sent over Bluetooth to the smartphone. An Android application is used in the smartphone to display temperature data. The system provides easy monitoring of process data on a smartphone. You can …

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mrk1000 ts

MKR1000 to ThingSpeak.com Using Arduino

A fairly simple project that attaches everyone’s favorite environmental monitor, the DHT, to the Arduino MKR1000 then transmits sensor data. Things used in this project Hardware components DHT11 Temperature & Humidity Sensor (4 pins) Arduino MKR1000 Story I had already developed code for the ESP8266 12-E to have environmental sensor data, taken by the DHT11, …

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