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DFPlayer and Arduino

DFplayer  module is quite small and looks good for little project. The module read only audios in MP3 and WAV formats and all audio files must be placed under /mp3 folder. It’s required that files are named like 0001.mp3, 0002.mp3…..0255.mp3…

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LDR Sensor with Arduino

The LDR Sensor also know as the Photo-resistor is basically a simple sensor that its resistance value changes with light. (resistance will lower with more light.) The LDR isn’t very precise, so you can not get a LUX reading but it…

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Troubleshooting and repairs

On the following sites you will find repair and operating instructions for repairing and maintaining your devices. Also you can free download all these users guide! These materials are for personal use only. Manuals for repair of mobile phone https://www.manuals.co.uk/telephone/mobile-phones…

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DS18B20 & LCD 128×64

Before I start, let’s of a quick review about the differences between DHT22 Temperature and Humidity sensor and DS18B20 Temperature sensor 1-Wire. (DHT22 vs. DS18B20) سنسور دما دیجیتال DS18B20,  سنسور رطوبت و دما DHT22, دماسنج NTC   DHT22 is a…

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