Rex Ching / Mbed 2 deprecated MedtricsIOECG

ECG data acquisition with Analog device frontend and Redbear nano BLE

Dependencies:   BLE_API mbed nRF51822

Fork of BLENano_SimpleControls by RedBearLab

Reference Design

2 channel EKG with Redbear BLE reference and Analog Device amplifier to generate RAW EKG data fed into Medtrics MaaS service . Medtrics API can consumer raw input with given parameters of ADC sample frequency and scaling factor

Specification

  • Application Processor: nRF51822/BLE , Analog frontend: AD8232 /
  • Input Analog Voltage = 3.3V
  • 10 bit ADC input range = (0-1023) or scaling factor= 3.22mV/unit (this is ADC resolution)
  • ADC sample frequency (BLE pull rate) = 250Hz (4ms per sample)

/media/uploads/pkweitai/ble_-3-.jpg Reference IOS and Android app will be online soon!

Diff: nRF51822.lib

Revision:
2:3cd654f42efa
Parent:
0:be2e4095513a
Child:
3:f530ca03e014
--- a/nRF51822.lib	Fri Oct 31 14:44:32 2014 +0000
+++ b/nRF51822.lib	Mon Jul 27 06:53:46 2015 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#936d81c963fe
+http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#c7adea3c1e37