Forumslader Companion
· v2.3.0
About
This IQ data field connects your Garmin bike computer to a Forumslader V5/V6 via BLE and shows live telemetry directly on your device.
Quick Guide:
https://github.com/cyberman54/Forumslader-Companion-public/blob/main/Forumslader-Companion%20Quick%20Guide%20EN.pdf
FEATURES
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- Up to 4 display fields plus 4 independent FIT recording fields
- Available values include Trip Energy, Temperature, Dynamo Power, Generator Gear, Distance/Odometer, Battery Current, Electrical Load, Speed, Battery Level, Day/Tour Distance, Consumed Energy, Estimated Range, and BLE Diagnostics
- Scroll Fields: single-field tap cycling or compact multi-field view
- Battery/charge icon in the data field
- BLE diagnostics: D (disconnects), E (checksum errors), B (bytes/s)
- Battery estimate by Coulomb Count or voltage model
- Automatic wheel circumference calibration after a continuous 20 km ride
- Optional alerts (low battery, short circuit, system interrupt)
- Optional auto trip reset when activity recording starts
Lock to Device:
When enabled, the app reconnects only to the previously paired Forumslader. If no device is locked yet, it first runs normal scan and then automatically escalates to a short, more sensitive scan when needed.
Important: immediately after enabling this option, hold the Garmin very close to the Forumslader (a few centimeters) until the first connection is established.
Connectivity:
Automatic scan/connect is built in. After disconnect, the app prefers reconnect first and then falls back to active rescan with backoff.
Compatibility:
Forumslader V5 and V6 are supported.
V6 requires firmware v2.05.2023 or newer:
https://www.forumslader.de/forumslader-pro/technische-details-forumslader-pro/bluetooth-v6
IMPORTANT:
Do not connect the Forumslader to a smartphone app at the same time.
What's new
v2.3.0 (July 2026)
This version improves Lock to Device: if no Forumslader has been locked yet, the app automatically escalates to a short, more sensitive scan when needed, to find devices that are otherwise hard to detect.
- New: Automatic escalation to a short, more sensitive scan when "Lock to Device" is on and no device has been locked yet
- Tip: bring the Garmin very close to the Forumslader immediately after enabling "Lock to Device", until the connection is established
v2.2.9 (July 2026)
This version brings two improvements: a new automatic wheel circumference calibration feature and more stable BLE connectivity.
- New: Automatic wheel circumference calibration - enable "Calibrate" in the Forumslader menu once, then ride at least 20 km (~ 13 mi) without stopping; the Forumslader is automatically updated with a more accurate wheel circumference
- Improved BLE connection stability: more robust automatic reconnection after connection drops
v2.2.6 (July 2026)
This version brings numerous improvements and enhancements to the Forumslader Garmin data field project, focusing on user experience, feature set, and configuration flexibility. Key changes include expanded display/recording field options, improved default settings, and new features such as automatic trip reset.
Feature and Settings Enhancements:
- Additional display/recording fields: consumption, range, BLE diagnostics
- New "Auto Trip Reset" option that automatically resets the Forumslader's daily trip counter (km) when an activity is started on the Garmin
- Choice between a large single-field display, switchable by tapping, and a compact multi-field display
- Colored live icon for battery capacity and charging state, always visible
- Forumslader's daily and tour distance counters (km) can be reset via the Garmin IQ menu
- Forumslader parameters wheel circumference, dynamo pole count, and auto-off delay are configurable