This article discusses the specification, placement, setup, and use for the Growlink ClimaLINK Sensor.
Specifications
The ClimaLINK measures the following:
- Temperature (°F/°C)
- ± /0.1°C
- Humidity (% RH)
- ±1% RH
- VPD (millibar/kPA)
- Light Levels (Lux)
- CO2 (Optional) (ppm)
- 0-5000 ppm Range
- ± 3%
- Pressure compensated for increased accuracy at any altitude
Compatibility
The ClimaLINK is compatible with Precision Irrigation Controllers with Bluetooth Capability only (ESP PIC). Older versions of the Precision Irrigation Controller are incompatible with the ClimaLINK To confirm your PIC is compatible, look for the Bluetooth sticker on the front door of the PIC:
Wiring
Wiring to a PIC
The ClimaLINK is wired to one of the four SDI-12 inputs on the PIC. Each SDI-12 input on an ESP PIC can support the use of a single substrate probe and a single ClimaLINK simultaneously, allowing for a user to have a total of 4 substrate sensors and 4 ClimaLINKS connected to a standalone ESP PIC. One can reference the wiring diagram below to wire your ClimaLINK sensor to your PIC:
Depending on the SDI-12 cabling received, there are different terminations that one would utilize. The list below goes over all possible SDI-12 cabling one can receive for the ClimaLINK and relevant wiring terminations to be made:
If you have Brown, White, and Blue Wires: Brown is +12VDC, white is signal, blue is ground.
If you have Black, Brown, and Blue Wires: Black is +12VDC, brown is signal, blue is ground.
If you have Black, Brown, White, and Blue Wires: Black is unused, brown is +12VDC, white is signal, blue is ground.
If you have Green, Black, Brown, and Blue Wires: Green is unused, black is +12VDC, brown is signal, blue is ground.
1. Connect the Brown or Black (cable dependent, see above) Wire Lead to the "12V" Terminal of the PIC channel used.
2. Connect the White or Brown (cable dependent, see above) Wire Lead to the "S" Terminal of the PIC channel used.
3. Connect the Blue Wire Lead to the "G" Terminal of the PIC channel used.
Sensor Placement
Place the ClimaLINK sensor within the micro-climate area of the canopy space you intend to measure. The sensor should be placed at or near the top of the canopy level to accurately measure the environmental data for the plants.
Setup with the Growlink App
1. Ensure the PIC you are connecting to has the most current firmware version. Follow this guide to ensure you have the most current version on your PIC.
2. Once the Firmware is updated, wire the ClimaLINK to the PIC Controller.
3. Press the "Reset" Button on the Precision Irrigation Controller
4. Within a few minutes the ClimaLINK will auto-detect and show up in the Growlink App and will be ready for use.