User:Adrian

March 13 2016 The following was developmental work, I now use the Hivetool sensor interface board I have been working on a hive scale base utilizing the Phidgets #1046 4 cell USB bridge (cost $90). The 24 bit USB bridge is supplied with numerous software drivers and a basic PC interface. We constructed a rigid aluminum frame using 1.25" X .75" solid aluminum bar stock. The scale frame perimeter matches the Langstroth hive body and sits under a standard wooden hive base. Four 1/4" thick load compression pads (not shown) at each corner are used to equalize the load across the four Zemic L6D 30 kG load cells (Ebay $19.99). Maximum hive weight 265 pounds.

Optical Bee Counter Prototype

This is a single gate optical bee counter using an integrated infrared LED and photo-diode optical detector.
Two sensors are mounted face to face in front of the hive to be able to detect and count incoming versus outgoing bees.
The sensors are available in lots of 10 for about $10.
The datasheet is available here.[1] Experimental code to count bees is available from hivetool