Hardware update –

We got another version of the boards this week. The basic design is the same. We decided to use 2×6 connectors instead of 2×10 to save on cost. These are high quality stackable connectors from Samtec. These are easier to insert and remove compared to the 2×10 connectors.

We also added two sensors to the RF host board. One is a temperature sensor (LM75B) and the other is an ambient light sensor (TSL4531).

We added a coin cell retainer to the bottom of the RF host board.  You can  use a standard 3.3 V, 20 mm coin cell to power the node.

The boards now have 4 mounting holes on the corners. These are 4 mm in dia. As you can see in the pics below, 4 standoffs provide a stable base to the nodes and protect the connector pins.



Sensor node with chip antenna












Sensor node with whip antenna



You can see the coin cell retainer holding a coin cell in this pic below.


Posted on January 25, 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: