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:
Digital Configuration Jumpers
JP1 and JP2 – Board Connection
JP1 – Config0 – 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 |
JP2 – Config1 – 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 |
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 – SRB2–REF_ELEC
| Pins |
Function |
| Unconnected |
Routes REF_ELEC on the electrode connector via a 5K resistor |
JP8 – 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 |