Behind the Scenes
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Behind the Scenes
VimoSwim Joins the ANT+ Ecosystem as an Early Adopter
We've officially joined the ANT+ Adopter Program — here's what it means for VimoSwim and why it matters for athletes.
VimoSwim has officially joined the ANT+ Adopter Program — a step that's been months in the making and one that fundamentally changes what our device can do.
What Is ANT+ and Why Does It Matter?
ANT+ is the wireless protocol used by most serious fitness devices — Garmin, Wahoo, Polar, Suunto. When you strap on a heart rate monitor at the gym or clip a cadence sensor to your bike, chances are it's speaking ANT+.
The key word here is interoperability. Any ANT+ certified device can communicate with any other. No proprietary pairing, no brand lock-in. One open ecosystem.
Why We Chose ANT+
From the very beginning, VimoSwim was designed to work directly with sensors — no phone in between, no app required. ANT+ makes this possible.
Direct Sensor Connection
Pair your ANT+ heart rate strap directly with VimoSwim. No phone needed.
Lower Latency
ANT+ is purpose-built for real-time sensor data — faster response than typical BLE connections.
Massive Compatibility
Works with thousands of existing ANT+ devices already on the market.
BLE + ANT+ Simultaneously
VimoSwim supports both protocols at the same time. You're never locked into one ecosystem.
The Technical Reality
Getting ANT+ working on a tiny embedded device wasn't straightforward. We're running both BLE and ANT+ on a single Nordic nRF52 chip using the S332 SoftDevice — a dual-protocol radio stack that shares the 2.4GHz antenna between both protocols in real time.
This means VimoSwim can talk to your phone over Bluetooth and read your heart rate from an ANT+ chest strap — simultaneously, on the same hardware.
Fun fact: The S332 SoftDevice manages BLE and ANT+ on the same 2.4GHz radio by time-slicing between protocols — hundreds of times per second. When a collision happens, the chip just retries on the next slot. The athlete never notices.
What This Unlocks
With ANT+ adoption, VimoSwim can now natively support:
- Heart rate monitors — real-time HR data directly to your device
- Cycling cadence sensors — match your pedaling rhythm to audio cues
- Cycling speed sensors — track speed without a phone
- And potentially more ANT+ device profiles in the future
For swimmers, cyclists, and runners who already own ANT+ sensors — your gear now works with VimoSwim out of the box.
Joining the Big Table
Becoming an ANT+ adopter puts VimoSwim alongside companies like Garmin, Wahoo, and Polar in the same ecosystem. For a company on a mission to redefine how athletes use rhythm in training, that's exactly where we need to be. It means we're building to the same standard, passing the same interoperability requirements, and earning the right to use the ANT+ logo.
We're not just building a metronome — we're building a platform for rhythm-driven performance. And now we're doing it with the industry's most trusted sensor protocol.
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