Friday, January 18, 2013

DIY Power Meter

Keith Hack has posted his latest creation and accompanying DIY guide for the V3 cycle power meter. This design and accompanying software are claimed to measure L/R power. Fabulous..

The 3rd generation (current) DIY PM

Cost breakdown:

V3 Parts Costquantitypricetotal
Strain Gage212.525
Instrumentation Amp24.18.2
Low power ADC21836
Micocontroller (Pro Micro)12525
ANT+  AP2 Module12424
PCB (Rush Proto Service)137.537.5
Misc (Caps, wire, pins, etc)12020
Build a PM for:334.1

Misc: 18/01/2013

"A while back I worked like a dog on my bike (55 miles a day minimum), recorded my weight, calories, and percentages of fat, protein, and carbohydrate for every morsel of food that went into my mouth, and all that time I was struggling to constantly improve my tracking of every aspect of my nutritive life.

It was brutal, and I did it for an extended period of time. I eventually achieved what some were calling my high-school weight.

Immediately people started telling me I was naturally thin." Bob F.

Friday, January 4, 2013

Misc: 04/01/2013

Look what happens when you put your bike in different positions in relation to other riders or objects while travelling at 40kph...

Thanks to SweatScience for the image..