HackEEG Connector Pinouts
Electrode Connector
JP16 is the electrode connector.
Electrode connector pinout:
| Pin # | Function |
|---|---|
| 1 | DVDD |
| 2 | AVDD |
| 3 | BIASINV |
| 4 | Reserved for Future Use |
| 5 | AGND |
| 6 | AGND |
| 7 | IN1P |
| 8 | IN1N |
| 9 | IN2P |
| 10 | IN2N |
| 11 | IN3P |
| 12 | IN3N |
| 13 | IN4P |
| 14 | IN4N |
| 15 | IN5P |
| 16 | IN5N |
| 17 | IN6P |
| 18 | IN6N |
| 19 | IN7P |
| 20 | IN7N |
| 21 | IN8P |
| 22 | IN8N |
| 23 | REF_ELEC_CONN |
| 24 | BIAS_ELEC_CONN |
External Sync connector
This connector is experimental, and not supported at this time. You can enable it using the various ADS1299 register settings.
External Sync connector pinout
| Pin # | Function |
|---|---|
| 1 | BIASINV |
| 2 | ADS_START |
| 3 | ADS_SPI_CLK |
| 4 | AGND |
Checking the connector pinouts against the schematic
If you want to check the pinout, you can see the connectors on the schematic on sheet 2:
Making cables
Electrode Connector cables
JP16 is the large, black male 24-pin shrouded electrode connector that is soldered on the board: On Shore Technology 24-pin right angle male shrouded header
This the mating female connector that I use to construct ribbon cables to connect the connector boards with the HackEEG shield:
On Shore Technologies 101-246 IDC socket connector for ribbon cable
Here's the ribbon cable I used:
24-conductor ribbon cable, 5 foot length
You'll need a tool to crimp them, I used this one from Amazon:
Alternatively, any 24-pin female header with receptacles on 0.1" centers should work if you want to use one and older some wires to it.
External Sync Connector cables
JP15 is the small, white male 4-pin shrouded connector that is used for synchronizing the ADS1299 with another board.
This is the connector that is soldered on the board: JST 4-pin Shrouded Male Header
Here is the Mating JST connector and Crimp Contact that fits the housing - these can be crimped with this tool:
HT-225D Full Cycle Ratchet Crimping Tool with interchangeable die set HT-225D