I have a Multitech MDOT-BOX for testing. Configuring it for TTN requires the following connection to a computer, after which AT commands can be used to probe and set parameters. The following resets the MDOT to factory defaults and shows the configuration overview.
AT&F
AT&V
Firmware: 2.0.0 Library : 0.0.9-14-g4845711 Device ID: 00:80:00:00:00:00:b3:76 Frequency Band: FB_868 Public Network: off Network Address: 00000000 Network ID: 6c:4e:ef:66:f4:79:86:a6 Network ID Passphrase: MultiTech Network Key: 1f.33.a1.70.a5.f1.fd.a0.ab.69.7a.ae.2b.95.91.6b Network Key Passphrase: MultiTech Network Session Key: 00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00 Data Session Key: 00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00 Network Join Mode: OTA Tx Data Rate: SF_7 Tx Power: 11 Log Level: 6 Maximum Size: 242 Minimum Size: 11 Maximum Power: 20 Minimum Power: 2 Data: 0
After adding a device to application page on the TTN console with OTA activation, the following identifiers/keys are listed on the TTN console page for the device
Device EUI Application EUI App Key Device Address Network Session Key App Session Key
From the Multitech documentation: In OTA mode, the device only needs to be configured with a network name (+NI=1,name) and network passphrase (+NK=1,passphrase). The network session key, data session key, and network address are all automatically configured.
With ABP activation, the following identifiers/keys are listed on the TTN console page for the device.
Device EUI Application EUI Device Address Network Session Key App Session Key
From the Multitech documentation: In Manual mode, there is no join request sent and the device must be manually configured with a network address (+NA), a network session key (+NSK), and a data session key (+DSK). The device must be provisioned with the network server as well.
Mapping between TTN and MDOT keys/identifiers
The Device EUI is hardware dependent and should therefore be copied from the MDOT device to the TTN console. The other keys/identifiers are application dependent and should be copied from the TTN console to the device.
For OTA the following settings need to be updated:
AT+PN=1
AT+NJM=1
AT+NI=0,70B3D57EF000451B
AT+NK=0,5108008928062F42980E42C20AC1E4E1
AT&W
| TTN | direction | MDOT |
|---|---|---|
| Device EUI | <- | Device ID |
| Application EUI | -> | Network ID |
| App Key (only in OTA) | -> | Network Key |
I could not get ABP to work.
| TTN | direction | MDOT |
|---|---|---|
| Device EUI | <- | Device ID |
| Application EUI | -> | xxx |
| App Key (only in OTA) | -> | xxx |
| Device Address | -> | xxx |
| Network Session Key | -> | xxx |
| App Session Key | -> | xxx |
How you been able to get the mDot box gps data to show up on TTN?
I have not looked at the payload content (temp, light, gps) on TTN, just whether the payload arrives.