ErnestW
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Identification of IoT
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Well I guess the signal strength could be measured but clothes hanged in wardrobe are too close to each other to distinguish them. Maybe close range NFC? I have other solution to be considered. ...

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RF24 communication between Leonardo and Micro not responding
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Ok I solved the issue, somehow I had to use 10 uF capacitor instead of 4.7 uF

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Bluetooth module is neither sending nor receiving data at baudrate(115200)
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Software serial is not working good with 115200 speed because of too much CPU usage. When I'm using only the bluetooth communication in Arduino, I'm connecting HC-05 (for example) to hardware serial ...

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Arduino ultrasonic distance meter doesn't display correct distance
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Maybe you should use the New Ping library and check if the sensor works without LCD: https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home

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