Teensy and BBB Circuitry

For the Teensy to send sensor data to the BBB, a serial communication must be established.

This is easily done so by connecting a Teensy and BBB with a micro USB cable: the micro USB is connected to the Teensy and the USB-A side of the cable is connected to the BBB. The image below shows this simple connection.

By connecting via a micro USB cable, Teensy is able to serially print any data for the BBB to read. This will be achieved by creating a Node-RED flow that uses the Serial.in node which is explained in the page linked here. The Arduino program to send Serial data from the Teensy is shown in this link.