A Solitary Bee Observation Nest Box
An observation nest box for cavity nesting solitary bees, build of an old wooden cigar box, small blocks of wood and an acrylic plate cut out from an old CD jewel case.Three Sensors
Three I2C capable digital sensors:
- A MPR121 Proximity Capacitive Touch Sensor Controller,
- a HTU21D-F Temperature & Humidity Sensor and
- a BH1750FVI Digital 16bit Serial Output Type Ambient Light Sensor.
The temperature and humidity sensor provides climate data from inside the nest box, while the light sensor gives information about the light exposure (sun light, shadow, etc.). to the box.
The capacitive sensor can be used to monitor the occupancy of the nesting cavities.The Controller
An Intel Arduino 101 acting as BLE peripheral, providing a BeeNestBox service to propagate the sensor values to a connected BLE central.The Setup
- Drill/cut one-side-open approx. 6-8 mm wide channels into wooden blocks, cover the blocks with an acrylic plate and fit them into an old wooden cigar box with matching holes drilled into the front side.
- Leave enough room for a small bread board, the three sensor breakout boards and some wiring.
- Attach a small piece of aluminium foil on the acrylic plate near each entry point and connect it with a wire to one input pin of the MPR121.
- Drill an additional small hole into the front or top side of the box. and cover it with a small piece of acrylic plate. Place the BH1750 sensor right behind that hole.
- If your cigar box is to small for housing the Arduino 101 (and a battery for power supply): Attach a second cigar box.
- Connect all sensors with the bread board and connect the Arduino 101 with 5 wires: 3.3V, GND, SCL, SCA and IRQ (for the MPR121).
- See wiring schematics and pictures.
With Microsoft Bluetooth LE Explorer ...
Testing the BLE peripheral with Microsoft Bluetooth LE Explorer
- Implement data logger (BLE central)