The RAKwireless RAK4631 is a WisBlock Core module that can be plugged into the WisBlock Base allows adding WisBlock sensor modules such as environmental sensor, GNSS location module, temperature & humidity sensor, 3-axis acceleration sensor, ambient light sensor, barometric pressure sensor, infrared temperature sensor, etc. The RAK4631 is based on the 32 bit ARM® Cortex™ - M4 CPU that supports LoRaWAN® and Bluetooth protocols.