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. Test your PIR sensor before you made this with any code from internet. Parts You need...
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MisloElectronicsContinue Reading »from Instructables: exploring - technology - robots http://ift.tt/13pMuvN
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