Prototype design documents

A project log for Heartbeat Logger

A portable device that logs a snippet of your heart at the push of a button.

Ole Andreas UtstumoOle Andreas Utstumo 11/23/2015 at 18:060 Comments

Prototype design documents.

The schematics and the PCB design of the first version of the logger -- the home etched one with an XMega controller -- can be reviewed by downloading the above link. It was all made using Altium Designer, with a little bit of inspiration from the Atmel Xplained design documents.

The analogue frontend is based on the reference design found in Texas Instrument's INA321 datasheet and Marco Antonio Moreno's Bluetooth ECG device. Thanks!

One thing I ought to mention is that there are hardware bugs in this design.