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  • AP2017 commented on 1Serg's instructable Arduino Wireless Mailbox Detector Device3 weeks ago
    Arduino Wireless Mailbox Detector Device

    I recommend to use Arduino Nano 3.3V power version on both sides: transmitter and receiver. Very little power consumption, direct interface with nRF24L01+ and can be directly powered by LiFePo4 battery

    Excellent post! Thinking about making similar system. What about:1) Having transmitter in deep sleep mode, waking up by reed switch to send alert2) Powering transmitter by LiFePo4 3.2V battery on solar charge

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