Difference between revisions of "Hardware: Sensor Wiring"
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[[File:Loadcell connector 2.jpg|thumb|right|500px]] | [[File:Loadcell connector 2.jpg|thumb|right|500px]] | ||
[[File:Loadcell connector 3.jpg|thumb|right|500px]] | [[File:Loadcell connector 3.jpg|thumb|right|500px]] | ||
| + | |||
| + | Modular telephone RJ14 connectors are used on the sensors. | ||
| + | Pins 2, 3, 4, and 5 are used. | ||
| + | |||
| + | |||
| + | 2 Red | ||
| + | 3 White | ||
| + | 4 Green | ||
| + | 5 Black | ||
#Remove any heat shrink from the load cell cable. | #Remove any heat shrink from the load cell cable. | ||
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[[File:Dht22 wiring1.jpg|thumb|right|500px]] | [[File:Dht22 wiring1.jpg|thumb|right|500px]] | ||
[[File:Dht22 wiring2.jpg|thumb|right|500px]] | [[File:Dht22 wiring2.jpg|thumb|right|500px]] | ||
| + | |||
| + | Wire flat telephone wire. | ||
| + | |||
| + | Wire colors are Black, Red, Green, Yellow. | ||
| + | |||
| + | Crimp the RJ25 connector for normal telephone use: | ||
| + | |||
| + | 2 Black | ||
| + | 3 Red | ||
| + | 4 Green | ||
| + | 5 Yellow | ||
| + | |||
<br clear=all> | <br clear=all> | ||
==TSL2591 Lux Sensor== | ==TSL2591 Lux Sensor== | ||
Revision as of 04:43, 4 December 2015
The Developers Kit will use RJ14 (6p4c) connectors for the sensors. Eventually, the load cells will be supplied with the connector attached. Cables will be provided for the other sensors.
These instructions are for developers that use the Dev Kit Raspberry Pi Hive Interface board versions 0.1 or 0.2.
The Registered Jack (RJ) series connectors install using an inexpensive crimping tool.
Contents
RJ Connectors
Some RJ connectors are designed to take round cable, some flat, some both. Some are designed for solid wire, some for stranded, some for both. They are insulation displacement connectors (IDC) that pierce the insulation on the wire, forming a gas tight joint.
For a detail description, see Registered Jack on Wikipedia.
Number of Contacts
Contact numbering
Load Cells
Modular telephone RJ14 connectors are used on the sensors. Pins 2, 3, 4, and 5 are used.
2 Red
3 White
4 Green
5 Black
- Remove any heat shrink from the load cell cable.
- Cut off the drain wire.
- Spread out the four wires and arrange them in Red, White, Green, Black order.
- Gently flatten the cable with a pair of pliers.
- Evenly trim the wires so they extend approximately 1/4 inch past the jacket.
- Orient the RJ14 connector so the latch tab is up.
- Insert the wires all the way into the RJ14 connector, making sure that the wires are in the right order.
- Inspect the wires and connector with a magnifier. Make sure the outer jacket is past the strain relief and each wire is all the way to the end of the connector.
- If the wires do not extend the full length of the connector, or the jacket does not go past the strain relief, remove the wire and trim a little of the jacket, or shorten the wires.
- Crimp the connector.
DHT22 Temperature and Humidity Sensor
Wire flat telephone wire.
Wire colors are Black, Red, Green, Yellow.
Crimp the RJ25 connector for normal telephone use:
2 Black 3 Red 4 Green 5 Yellow
