A minor hardware update

We have a separate PCB which hosts the RF board, a coin cell retainer as well as a couple of sensors (temperature and light). The chip antenna  PCB is only 0.4 mm. Compare this to a normal FR-4 PCB whch is 1.6 mm thick. We cannot mount board to board connectors on the chip antenna PCB since it is really thin. As a result we had to build a “host” board to host the radio, sensors and a coin cell retainer. In the latest version we have added a slide switch to the “host” board. This allows the user to turn off the node when not in use.

Host board

Host board

.

.

.

.

.

.

.

.

 

.

Host board (bottom side)

Host board (bottom side)

Posted on February 13, 2014, in Uncategorized. Bookmark the permalink. Leave a comment.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: