Sensor Construction - SunnyD-Flood-Sensor-Network/SunnyD_TutorialWikis Wiki

Sensor construction manual - Alkaline battery pack version

1

Tools Needed

Supplies Needed

Sensor Housing

End cap penetration - ONLY if using float switch

If not using float switch substitute a “Quik cap” rubber end cap.

Picture32

3

PVC Housing

Cut PVC pipe pieces in the following lengths:

Glue PVC parts together: If using float switch, follow steps in italics

Electronics Carrier

Open Log Artemis (OLA)

OLA sensor is delicate and susceptible to static discharge. Set on static mat or static free bag (the thing it came in).

Bluetooth (BLE) Board

The current design uses the Adafruit Bluefruit LE UART Friend board.

Electronics Cable

The electronics cable connects the OLA, the BLE board, the batteries, and optionally the float switch. The connectors pictured are, from left to right, battery connector, (optional) float switch connector, OLA connector, and BLE board connector.

Capture

The connectors pictured are, from left to right, battery connector, (optional) float switch connector, OLA connector, and BLE board connector. Wires between the two connectors will be much shorter.

Color assignments for the wire are as follows (Tx means Transmit, Rx means Receive):

Connections are made as per the following diagram:

Capture1

If using float switch:

Pressure Sensor

The wires from the red Bar02 pressure sensor must be soldered to wires that connect to the OLA data logger.

Extend enough wires to the sensor so that it can be easily connected to the OLA during assembly. The length of wire used will depend on the length of ½” PVC. Use enough wire so that the cable reaches comfortably out the end of the ½” PVC housing for ease of assembly.

Connectors (as shipped)

To extend the wires, add heat shrink and solder wires in so that the following connections are made when complete:

Install sensor in the 1" PVC threaded plug

Final Sensor Assembly

If using float switch: