SCD 30 (I2c)

This page explains how to create and setup the SCD30 CO2, Temperature and Humidity sensor.

How to prepare the SCD30 sensor.

The SCD30 sensor already has i2c available on it therefore all that is required is to connect it to a cable. The sensor is not waterproof and requires a case since it will be standing outside.

Cut a 60 cm long piece of the ethernet cable and cut the cable that comes with the SCD30 sensor in two.
Strip the wires and place a small piece of heat shrink on the connector side of the cable as far away from the solder joint as possible. Solder the wires togheter:
- Red -> Red (POWER)
- Black -> Black (GND)
- Yellow -> Yellow (SCL)
- White -> Orange (SDA)
SCD30 soldered.
Let the solder joint cool and pull the heat shrink over the joint. Heat the heatshrink sealing the joint. If you struggle to pull the heatshrink over the joint you can try using some pliers to press the joint flatt.
Wires soldered and heatshrinked.
Glue the two outer rails onto the back of the SCD30 case
Glue bracket on the backside, the bottom part of sc30 case.
Place the sensor into the 3D-printed case and glue it in place.
Use a file to open up the wire hole so the lid of the casing can close.
File to make sure the ethernet cable fits.
Placing the sensor in the case.
Use waterproof silicone in the opening for the cable.
Using silicon to waterproof from cable side.
Side view of silicon and case.
Use glue around the lid and close it.
Gluing the lid of the case.
Placing the lid ontop of the bottom, firmly.
Use zipties hold the casing closed while the glue and silicone dries.
Strips to keep it in place while glue dries.
Strips to keep it in place.