0x12 Stupid mode 1 (2 MAC addresses)

Created by Vojtěch Plášil
Last updated: Dec 25, 2019

Hex value: 0x12

Use cases: Simple WiFi tracking, tracing, keep-alive heartbeats, localisation in general

Devices that support this mode: SimplePack Plus

Required sensors: WiFi module

Mode-specific deltas:

Deltas are mode-specific register values different from register default values.

Register (hex)

Default (hex)

Delta (hex)

Delta information

Register (hex)

Default (hex)

Delta (hex)

Delta information

0x64

0x00

0x98

Heartbeat 3 sent every 24 hours

Uplink messages (events) used in this mode:

This mode does not send the mode, event and mask bytes as usual. In default settings, the only payload you’ll receive are two 6-byte MAC addresses in one message (max uplink payload) - similar to Atlas WiFi user modes without the mode+event uplink message.

Uplink message example

Parsing

Uplink message example

Parsing

0c9d924d4a500c9d924d4a51

12:157:146:77:74:50 (1st MAC),12:157:146:77:74:81 (2nd MAC)

For more information on what uplink messages (mode-independent events) and additional data from various sensors in the device (appended payload) can be sent regardless of mode and how to fine-tune message behavior (alerts), see Mode-independent information and events.

Registers relevant for this mode:

Hex

Register name

Default value (hex)

Hex

Register name

Default value (hex)

0x64

Heartbeat 3 period

0 seconds (0x00), delta: 24 hours (0x98)

Similar modes:

Hex

Mode name

Description

Hex

Mode name

Description

0x61

Stupid mode 2

Sends only Sigfox metadata, no payload is sent

Switching to mode, arming and disarming information:

Follow the Basic Operations With SimpleHw Devices guide, where you can also find information about LED behavior, relevant Sigfox messages and more.

Here’s what’s important for Stupid mode 1 messages:

  • To set this mode, the downlink needs to include this mode register setting: 0112

  • When arming the device, you should see this message: 1210

  • When the device is armed, it should send you these two bytes: 1211

  • If you disarm the device via long press, you should receive this message: 1214