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Firmware versioning for companion apps

BLE defines a standard service (Device Information Service, DIS) that allows BLE devices to expose information about them: hardware version, software version.

Companion apps will use these information to detect which firmware (or fork of a firmware) is running on the Pinetime they are connected to.

How to use the Device Information Service to differentiate firmwares?

Weโ€™ve briefly talked about this on the community chat and this proposal is the result of this discussion. This is a request for comments.

Fields from the Device Information Service:



Example value

Manufacturer name



Model number

Name of the device

"PineTime", "P8"

Serial number

Not needed by companion apps as they can use the BLE MAC address


Hardware revision

Version of the hardware


Software revision

Project name or fork name

"InfiniTime", "InfiniTime-forkname", "Hypnos"

Firmware revision

Version of the firmware