After the decoding of an infrared remote control which uses RC5 protocol, now I’m going to decode a remote control uses NEC protocol (this example works with both NEC and extended NEC remote controls). Arduino RC5 decoder topic link: Arduino […]
This post shows how to decode IR remote controls which use the Philips RC5 protocol with full hardware interrupt method and without using any external library. About RC5 protocol: The RC5 has 14 bits per 1 code transmission, the 14
This post shows a simple interfacing of an Arduino UNO board with HC-SR04 ultrasonic sensor in order to build a distance meter with a range up to 4 meters. The HC-SR04 ultrasonic sensor module can measure distances form 2 cm
This article shows the interfacing of the Arduino with LM35 analog temperature sensor. The measured temperature value will be displayed on 16×2 LCD screen. About the LM35 temperature sensor: The LM35 temperature sensor is a three pin device (VCC, OUT
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This post shows how to build a digital thermometer using Arduino and LM335 analog temperature sensor. Simply, the LM335 is a 3-pin device (like a transistor) which converts temperature into analog voltage. This sensor requires an ADC (Analog-to-Digital) module in order
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Last time I’ve built a simple real time clock and calendar using Arduino UNO board and DS3231 and now I’m going to add two alarm functions and temperature monitor to the previous project. Related topic URL is the one below:
Arduino Real Time Clock with Alarm and Temperature Monitor Read More >>
After the interfacing of DS1307 real time clock IC with Arduino now I’m going to use DS3231 instead of the DS1307. Related topic link is below: Arduino real time clock with DS1307 The DS3231 is also a low cost, easy
This post shows a simple real time clock and calendar example using an Arduino UNO board and DS1307 RTC chip where time and calendar are displayed on 1602 LCD screen and it can be set with two push buttons. The
After the interfacing of the Arduino with DHT11 (RHT01) sensor, let’s see how to connect the Arduino with DHT22 (AM2302 – RHT03) digital humidity and temperature sensor. Arduino interfacing with DHT11 sensor and LCD As what was done in the
This topic shows how to interface Arduino UNO board with DHT11 digital humidity and temperature sensor where the measure humidity and temperature are displayed on 1602 LCD screen. DHT11 Sensor technical specifications: Humidity Range: 20-90% RH Humidity Accuracy: ±5% RH