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HackEEG Typical Configuration

The HackEEG comes from the factory configured this way and the drivers are set up to use it.

Jumper Diagram

This diagram shows the locations of all the configuration jumpers:

Annotated picture of the HackEEG board showing jumper locations

Digital Configuration Jumpers

JP1 and JP2 – Board Connection

JP1 – Config0 – SPI Configuration

Signal Port Jumper # Arduino pin
SPI MOSI Native 1 SPI4
SPI CS Chip Select 6 D23
SPI SCL Native 7 SPI3
SPI MISO Native 9 SPI1

JP2 – Config1 – ADS1299 Control Configuration

Signal Jumper # Arduino pin
DRDY 2 D25
CLK 6 D31
START 7 D61
START 8 D59
RESET 10 D47
PWDN 12 D33

Not configurable

These pins are hard-wired and cannot be configured.

Signal Arduino pin
CLKSEL D48
BOARD LED ADS1299 GPIO4

JP3 – Board Address

No jumpers set, so board address is 0.

Analog Configuration Jumpers

Instrumentation Power Supplies

The HackEEG comes configured in bipolar mode:

Mode Name ADS1299 Voltage Range JP4 Pins JP5 Pins
Bipolar -2.5V – +2.5V 2-3 1-2

JP 4

Pins Function
2-3 Sets AVDD to 2.5V

JP 5

Pins Function
1-2 Sets AVSS to -2.5V

Stimulus-Response Buffer (SRB)

JP6 – SRB1 - BIAS

Pins Function
Unconnected Disconnects BIAS from SRB1 – use in conjunction with JP7/JP8 REF_ELEC functions

JP7 – SRB1–REF_ELEC

Pins Function
1-2 Routes SRB1 to REF_ELEC on the electrode connector via a 5K resistor

JP9 – BIASIN-BIASOUT-BIAS_ELEC

Pins Function
Unconnected Leaves BIASOUT, BIASIN, and BIAS_ELEC unconnected
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