Tag Archives: sensors

Wahoo Headwind

The Wahoo Headwind is a ‘smart’ fan specifically designed for cycling.

When I first heard about this product, I was quite dubious. First, and foremost, it’s expensive. $250 for a fan is pretty high. Also, for some reason, my initial though twas that they were trying to reproduce the experience of a headwind while cycling.

Well, cost aside, most of the reviews of the fan I saw were pretty positive. With the holidays upon us, this is what I decided I wanted

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4iiii Viiva Heart Rate monitor revisited

Some time ago I posted about my general dissatisfaction with the 4iiii Viiva heart rate monitor.

In a nutshell, in addition to being a ANT+ and Bluetooth Low Energy (BTLE) heart rate monitor, it also acts as a bridge between ANT+ devices that don’t offer BTLE functionality. In my original review of the Viiva, I complained because few software offerings provided support for it and the data is sent to apps wasn’t accurate.

Well, I need to revise my opinion of the Viiva … it has gained adoption and now appears to be quite useful.

Those who use training programs (such as Zwift) with Apple TV have already learned that the Apple TV only supports 3 total BTLE devices connected. One of those devices slots is already taken by the remote control. That leaves only 2 more slots.

If you’re using a training program, you’ll need at least 3 devices connected (possibly more) …

  • Cadence sensor
  • Heart rate monitor
  • Trainer
  • Speed sensor (depending on the trainer)
  • Power meter (depending on the trainer)

In my case, I need a cadence sensor, heart rate monitor, and Kickr smart trainer (which acts as both a smart trainer and power meter).

You can use the Zwift companion app to gate the BTLE sensors, through the phone, to Zwift … but I find that to be somewhat twitchy (see my post on Zwift, which I will create later and link).

With the Viiva HRM, I’m able to pair my cadence sensor (which broadcasts in both ANT+ and BTLE) to it and feed both it and the heart rate data to the Apple TV without needing an extra BTLE connection slot.

So far it’s working well … the only issue I’ve had is that sometimes it takes a little while for Zwift to pick up the Viiva heart rate monitor.

Another option to accomplish the same thing is to use the North Pole Engineering (NPE) CABLE ANT+ to BTLE gateway. I tried using that but had problems with the hardware. It was probably defective. Getting support for the device, from the manufacturer, was pretty difficult. I ended up giving up, returning the device, and using the Viiva (since I already had it).

Garmin RTL-510 Radar

Review of the Garmin Varia RTL-510 Radar

Standard disclaimer:

Being into technology, I’ve accumulated a fair bit of bike tech also.  As such, I’m going to try doing thumbnail reviews of some of the bike tech that I current, or used to, use.

These aren’t going to be super technical reviews.  For that kind of thing I suggest you head over to
DCRainmaker‘s blog or GPLama‘s YouTube channel.

These are going to be my impressions of the product … what I like, what I don’t like, what could be better, and some things that should be left just the way they are.

All the items I’m going to review have been purchased outright by me and I don’t get any compensation for the reviews (unless I provide an Amazon link, in which case I get a small commission).

A few years ago I decided I could try bike commuting to work. The office I work in has a bike rack and (lucky for my co-workers) a locker room with showers.

I figured I could leave earlier than I normally would, ride the 20 miles to the office, lock my bike up, shower, and start work about an hour after I normally would. I would leave a change of clothes, toiletries, and fresh cycling kit for the ride home.

A few years ago a 20 mile ride to work would have seemed impossible, but now it’s really not a big deal. Takes about 90 minutes.

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