An Open Heart Rate Monitor
We’re pleased to see [Milos Rasic]’s project then, an open-source version of one of those monitors. The heart rate capture is done by an AD8232, while the Bluetooth part is handled by a Seeed Studio XAIO ESP32 board. Power is provided by a single 3.7 V cell, with a boost converter to push that up to 5 V.
- ▪We’re pleased to see [Milos Rasic]’s project then, an open-source version of one of those monitors.
- ▪The heart rate capture is done by an AD8232, while the Bluetooth part is handled by a Seeed Studio XAIO ESP32 board.
- ▪Power is provided by a single 3.7 V cell, with a boost converter to push that up to 5 V.
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| Original publisher | Hackaday |
| Canonical URL | https://hackaday.com/2026/09/14/an-open-heart-rate-monitor/ |
| Publication time | Tue, 15 Sep 2026 05:00:00 +0000 |
| Retrieval time | 2026-09-15T05:01:51.657Z |
| Last seen | 2026-09-15T05:01:51.657Z |
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| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | toLNeHR1zH2- · 1 stories |
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| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
An Open Heart Rate Monitor No comments by: Jenny List September 14, 2026 Title: Copy Short Link: Copy If you spend any time near a gym, you may be familiar with Bluetooth heart rate monitors — a small pack of electronics mounted on a strap round the chest which can relay heart rate data to an external logger or display. We’re pleased to see [Milos Rasic]’s project then, an open-source version of one of those monitors. The heart rate capture is done by an AD8232, while the Bluetooth part is handled by a Seeed Studio XAIO ESP32 board. Power is provided by a single 3.7 V cell, with a boost converter to push that up to 5 V. The design omits a charge controller to keep things simple, so figuring out how to top off the cell is left as an exercise — no pun intended — for the user.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Hackaday.
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