Browse By Tags

Howdy, Thanks to a comment by YT2095 on my last post, I started thinking that I need to do more averaging to achieve a smoother graph. It turns out that this is very simple to do as the Arduino sketch writes 30 BPM samples per line to the text file on…

I wrote a quick overview of how the hrmshield sketch works in my last post , so in this post I'd like explain what I do with the data it produces. All the code along with sample data are in the hrmshield github repo . Parse After doing a test run with…

Howdy, After being consumed with Raspberry Pi WiFi adapter testing the last two weeks, I'm turning my attention back to finishing my Arduino heart rate data logger project (which I've termed the hrmshield). I'm really glad that I finally moved the project…

When I ran out of time to solder together my 7-segment name badge, I decided to just pack the hrmshield for Maker Faire Bay Area as I planned to go to Jeri Ellsworth's Bring-A-Hack dinner. I was hesitant to do so as I still need to make a case for it…

Howdy, I've finally placed the Polar chest strap receiver chip and Open Heart LED matrix on the Adafruit data logger shield: Quick video while I'm sitting at rest: You don't have permission…

Howdy, This year I decided to make my own version of the HeartSpark which I gave my girlfriend last year for Valentine's Day: http://www.element14.com/community/blogs/pdp7/2011/02/14/heart-spark-an-open-source-valentine-3 I posted last week about the…