Friday, 31 October 2014

Wireless PIR Sensor Alarm

17:51  Telli k  No comments

This is a simple wireless PIR sensor alarm.The device consists of two parts.One is a transmitter that contains PIR sensor and a transmitter module.A second receiver consisting receiving module and piezo speaker. Parts You need:1. Two arduinos any version2. PIR sensor3. Piezo speaker4: RF 433MHz o...

By: MisloElectronics



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from Instructables: exploring - technology - robots http://ift.tt/13pMuvN

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