ads1298-breakout's Introduction

ADS1298-breakout

This is an ADS1298 breakout board. It can also be used with the ADS1294 and ADS1296.

If you are looking for a full Arduino shield with analog input capability, you might be interested in the HackEEG Shield instead. The HackEEG shield is compatible with the ADS1298 or ADS1299.

The ADS1298 is an 8 channel ADC chip with SPI interface, meant for ECG and EEG:

http://www.ti.com/product/ads1298

The breakout board needs +5v input, and provides clean analog and digital power, along with some minimal support circuitry.

Most of the ADS1298's pins are available on the two 20-pin headers.

This board is meant for basic system debugging - electrode circuitry for EEG or ECG is not provided, just access to the chip's differential input pins.

v0.1 of the board has been made and is in testing; v0.2 of the board has not been made yet, and is development.

Connecting the Board to an Arduino Due

There is an Arduino Due pinout diagram in docs/arduino_pinout_diagram.png. Refer to that when making the wiring connections. There are also a couple of photos.

ADS1298-breakout pin - Arduino Due pin (SAM3X8E pin)
SPI OUT (MISO)       - SPI Header 1 (108)
SPI IN (MOSI)        - SPI Header 4 (109)
SCK                  - SPI Header 3 (11)
GND                  - SPI Header 6
5V                   - SPI Header 2
DRDY                 - D45 (100)
CLK                  - A7 (85)
CLKSEL               - D49 (96)
RESET                - D48 (97)
PWDN                 - D47 (98)
START                - D46 (99)
CS                   - D52 (92)

Testing

The Arduino Due driver software for this board can be found in the ADS129x-tools github repository.

If you have questions, comments, or improvements, I would love to know them!

cheers
adam
Adam Feuer
Seattle, WA, USA
[email protected]
http://adamfeuer.com

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