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Postbox notification

by jwillmer

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433mhz Alert arduino arduino case attiny85 home automation iot letterbox mailbox notification radio smarthome 433mhz Alert arduino arduino case attiny85 home automation iot letterbox mailbox notification radio smarthome

This is a hardware containment for a 443 MHz radio notification device. The hardware will send a code over 433 MHz as soon as it is powered on. There are two cables running out of the case that need to be connected in order to turn on the device. I am using a reed switch together with a magnet on my postbox that will connect the cables as soon as the magnet moves away (open postbox).

#### Notification examples

- Postbox notification (as described)
- Door/window sensor (with a reed switc

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