LoRa Expansion Board for Raspberry Pi Configuration:434MHz in CE1 we suggest using sonar sensors

we suggest using sonar sensors

we can calculate the distance

We stock a large number of barometric pressure sensors

filter-free class-D audio power amplifier

The Adafruit Feather HUZZAH ESP8266 is a compact Wi-Fi development board with fast USB programming

LoRa Expansion Board for Raspberry Pi Configuration:434MHz in CE1 we suggest using sonar sensorsThis is a LoRa Expansion Board for Raspberry Pi, with HopeRF LoRa radio module(s) installed. The RFM95 98W transceivers feature the LoRa long range modem that provides ultra long range spread spectrum communication and high interference immunity whilst minimising current consumption. Supplied with suitable header and standoffs, with the SMA connector and radio modules pre soldered to the board. The board also has LED's for internet, network and CE0 1