I got new versions of two flavors of connector boards back from the manufacturer recently. One flavor (DIN EEG connectors) was partially assembled, and I built it this weekend. The other flavor (screw terminals) was fully assembled. Here’s some pictures.
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-with-electrodes-1-768x1024.jpg)
The Connector-8 allows you to connect human electrodes to the HackEEG via DIN 42-802 connectors.
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-assembled-1-1024x468.jpg)
Connector-12 is for connecting the HackEEG permanently to wires via screw terminals, this can be useful when integrating into other devices or for connecting test equipment.
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-12-front-cropped-1024x383.jpg)
They look great. The only issue is that the Connector-8 board with the DIN 42-802 electrode connectors is somewhat hard to build. When soldering the the electrode connectors onto the board it’s difficult to get them to be 100% vertical. So I’m thinking about using some other connectors that have a different orientation, but have a large flat side that makes it easy to get them to all be exactly straight.
Here’s four of the unassembled Connector-8 boards:
![](https://www.starcat.io/wp-content/uploads/2019/06/connnector-8-4-unassembled-813x1024.jpg)
Some close-up views of back and front:
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-unassembled-front-1-1024x400.jpg)
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-unassembled-back-1024x366.jpg)
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-soldering-768x1024.jpg)
![](https://www.starcat.io/wp-content/uploads/2019/06/connector-8-hand1-1-1024x985.jpg)
These connector boards are open source hardware and are made for the HackEEG, a high-performance biosignals acquisition shield for Arduino Due and Mega2560.