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S4 Comm Module Firmware

Sven Meier edited this page Feb 8, 2022 · 8 revisions

Waterrower has produced different revisions of the S4 Comm Module (Model Number 4):

Hardware revision Firmware revision Software revision BLE Properties Status
2 1.19 4.0, 4.1, 4.2
update see below
Secure DFU Service
- Buttonless DFU
Heart Rate:
- Heart Rate measurement
Fitness Machine:
- Rower Data
- Fitness Machine Control Point
- Fitness Machine Status
- supported
- cannot use reset on software revision < 4.2, as this triggers a connection bug in the device
2.2BLE 0.30 1.30 Heart Rate:
- Heart Rate measurement
Fitness Machine:
- Rower Data
- Fitness Machine Control Point
- Fitness Machine Status
Battery Service:
- Battery Level
- supported
- does nothing on reset

You can identify your specific revision number as follows:

  • install nRF Connect (https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp)
  • turn on your S4 Comm module
  • enable Bluetooth and location services
  • start the nRF Connect App
  • scan for devices
  • connect to "S4 Comm"
  • tap on "Device Information"
  • then tap on the small arrows right to "Hardware Revision String", "Firmware Revision String" and "Software Revision String"

Please provide theses revision numbers, if you want to report any problems with connecting Coxswain to your Comm Module.

Software revision update

Owners of the S4 Comm Module with software revision 4.0 or 4.1 can update the firmware to version 4.2, to allow Coxswain to utilize the latest rowing features via Bluetooth.

The firmware can be updated as follows:

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