![]() ![]() has 46 inputs/outputs, - its cheap, and - designed locally here in Portland. I used the Teensy ++ - same user interface as Arduino. Prototype your parts with an Arduino - I used a dead bee on a wire - its an easy circuit 3. Get some 10, 20, and 50 ohm resistors for powering the IR LED 2. ![]() Buy a couple of infrared (IR) sensors - Sparkfun: - Get some 30K 50K and 100K resistors for testing the digital input sensitivity. There are general instructions for prototyping or you can go to the circuit page and copy my exact board and circuit. 95% Accuracy - Runs off USB power - should be rain resistant with a top cover - bees adapt to new opening in a few minutes - real time monitoring on google docs - USB connection dumps data onto your laptop text file Here's the plans to build your own. This instructable details out Version 1 which is easily upgradable to version 2 though I've not provided complete plans. Bee Counter - Version 2, Octomicro SD datalogging - real time clock turns OFF the counter at night for reduced power - decoupled the LEDs from the microcontroller to reduce average power to 6.6 ma when not in use - small battery will last for months - solar cell power ready - unlimited temperature sensors - can perform estimates of size of the bee (worker vs drones) and therefore monitor drone/worker activity - 3D printed turn-styles or gates - for sale complete without battery $400 or make your own (see below) Here are the specs for Version 1. ![]()
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