Mailbox that transmits information over a LoRa RYLR 998 module and lets you know if the mailbox door has been opened with a reed switch, an ultrasonic sensor lets you know if mail has been placed in the mailbox and all the sensors and switches input to a picaxe 18m2 chip before outputting to the Lora module. On the receiver side I have another 18m2 chip and an OLED screen
