W14: Networking
I get to this one assignment very late in the game and still with heavy restrictions on Fab Lab access.
I have a Bluetooth module laying around and I will try to connect it to my Hello Fab Kit board which I created for the Final Project and to my mobile device to send commands between them.
The connections
Hello Fab Kit Board
On the mobile device
The bluetooth board indicated its availability for pairing with the blinking LED:
I'm using the free Arduino Blue app to connect to the Bluetooth module. I tried many others, but this one was by far the best.
Once both devices are connected to each other, the LED stops blinking.
Sending messages through the network
Setting up the code
The Hello Fab Kit board will keep listening to the serial port to recognise two different commands:
- "1" to turn the LED on
- "0" to turn the LED off
Sending the commands
Once connected, the mobile app has a basic terminal to send commands:
From there, a textfield allows for sending commands from the device to the Hello Fab Kit board:
Integration
It turned out to be much simpler than I expected, but that is also because I learned (and suffered) a lot with serial bus comms on the Interface Programming assignment