Jan Jongboom / Mbed OS mdot_two_way

Two way data over LoRaWAN using Multitech mDot

Dependencies:   libmDot-mbed5

This is example firmware for the Multitech mDot. It demonstrates how to:

  • Do two-way data.
  • Sleep aggressively and only wake up when the wake-up pin is triggered.
  • Handle errors, retries and duty cycle errors.
  • Cache data in non-volatile storage.

Based on mbed OS 5.1, hard faults against mbed OS 5.3 unfortunately. Can be compiled with GCC and ARMCC (but not IAR).

To do a new transmission, short pin D6 / PA_1.

README.md

Committer:
Jan Jongboom
Date:
2017-01-03
Revision:
3:ac5101a47080
Parent:
1:b604a2d6c54d
Child:
4:0fd5e5e121ea

File content as of revision 3:ac5101a47080:

# Two way data using Multitech mDot

Only builds with ARMCC, not with GCC. Demonstrates two-way data over LoRaWAN using Multitech mDot.

1. Triggers transmission when D6 goes high - this is the special wake-up pin on the mDot. Short D6 to test quickly.
2. The RX window is used to toggle D2. If 0x00 is received the pin goes high, if 0x01 is received the pin goes low (as the LEDs are inverted on the break-out board).

## Using this software with mbed Device Connector

1. Connect your gateway to LORIOT EU1.
2. Go to http://apm-lora-eu2.cloudapp.net:5101 and click on 'Create new device'.
3. Paste in a security.h file from your Connector account.
4. Copy the keys over to ``main.cpp``.
5. Compile and flash, and verify that messages arrive.
6. Configure the device like this:
    * Resources:
        ```json
        {
            "button/0/clicks": {
                "mode": "r",
                "defaultValue": "0"
            },
            "led/0/value": {
                "mode": "w"
            }
        }
        ```
    * Process Data:
        ```js
        function (bytes) {
            return {
                "button/0/clicks": (bytes[0] << 8) + bytes[1]
            };
        }
        ```
    * Write Data:
        ```js
        {
            "led/0/value": function (v) {
                return { port: 2, data: [ Number(v) ? 0x1 : 0x0 ] };
            }
        }
        ```
7. Click 'Save'.