Awesome

ubirch NB-IoT message module

This is a package for sending signed data messages to the ubirch backend. It can be used by the PXT Calliope mini editor. Should also work with PXT for Micro:bit.

Testing

Modify tests.ts to send packages to your own server.
Execute a little server: nc -vv -ul -p 9090 (Linux, also echos the messages)
Compile the test pxt test and copy built/binary.hex to the Calliope mini.

On the USB console window you will see this:

TEST START
!!!!  PACKET & SIGNATURE TEST
ID BC9AB239
TEST: create unsigned packet: OK
TEST: set sign key: OK
TEST: create signed packet: OK
!!!!  NETWORK TEST
TEST: sending hello world: OK
TEST: sending number (temp): OK
TEST: sending number (light): OK
TEST: sending string: OK
TEST FINISHED OK

It will take some time to send the messages, as the the nRF51 not the fastest chip for the Ed25519 signature generation.

Example

Blocks

Example Code

Javascript

input.onButtonPressed(Button.A, () => {
    bc95.send(
        ubirch.createNumberMessage(
            "temperature",
            input.temperature()
        )
    )
    if (!(bc95.sendOk())) {
        basic.showIcon(IconNames.Sad)
    }
})
input.onButtonPressed(Button.B, () => {
    bc95.send(
        ubirch.createStringMessage(
            "info",
            control.deviceName()
        )
    )
    if (!(bc95.sendOk())) {
        basic.showIcon(IconNames.Sad)
    }
})
ubirch.setSignKey("3bc4b2499d97501aba63b0f6308f8d913bcbdceda853269d6875a06a6432fac77b60882bee2e3f017907ce84e5e1c87f705760fac5877fe0de7c5806c4691f2f")
modem.enableDebug(true)
bc95.init(
    SerialPin.C17,
    SerialPin.C16,
    BaudRate.BaudRate9600
)
bc95.attach(
    6
)
bc95.setServer("46.23.86.61", 9090)

License

MIT