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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:

HackEEG Shield schematic

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:

IDC crimp tool

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

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