AIR-CO2
About the AIR-CO2 PCB
AIR-CO2 is an open source PCB design by Xerolux, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 25 × 25 mm, with 6 components from 6 distinct parts.
Other key parts include the LMR36510ADDAR and AP2112K-3.3TRG1. By type, the board carries 3 capacitors, 2 ICs and 1 connector.
It belongs with the sensors designs in this gallery.
From the project
B-ES5-MODULAR uses three electrically identical 2x4, 2.54 mm slots. The base board is labelled CO2, VOC/NOx and PRESSURE for a clear default arrangement, but every module works in every slot. Up to three modules may be fitted at the same time.
B-ES5-MODULAR uses three electrically identical 2x4, 2.54 mm slots. The base board is labelled CO2, VOC/NOx and PRESSURE for a clear default arrangement, but every module works in every slot. Up to three modules may be fitted at the same time.
The symmetric pinout is electrically identical after a 180-degree rotation. Each module produces its own 3.3 V locally. For the enclosure, insert all modules with their sensor side toward the broad lid ventilation field; the electrical protection is not a substitute for correct mechanical orientation.
Main components on the AIR-CO2
AIR-CO2 bill of materials (BOM)
6 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LMR36510ADDAR SCD41-D-R1 Texas Instruments | SENSOR-SMD_SCD41-D-R1 | U1 |
| 1 | AP2112K-3.3TRG1 AP2112K-3.3 TECH PUBLIC | SOT-23-5 | U2 |
| 1 | MX205R-5.0-04P-GN01-CU-A AIR-SLOT MAX | PinSocket_2x04_P2.54mm_Vertical | J1 |
| 1 | 4.7UF/100V 10u JLCPCB Assembly | C_0805_2012Metric | C1 |
| 1 | TCC0805X7R224K101FT 22u CCTC | C_0805_2012Metric | C2 |
| 1 | CL21B105KBFNNNE 100n Samsung Electro-Mechanics | C_0603_1608Metric | C3 |
AIR-CO2 design files
The KiCad project lives in the Xerolux/IDM-Smart-Climate-Platform repository on GitHub; these links point at the commit this page was built from.
AIR-CO2: common questions
How big is the AIR-CO2 PCB?
The AIR-CO2 measures 25 × 25 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the AIR-CO2?
6 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the AIR-CO2 design files?
From the Xerolux/IDM-Smart-Climate-Platform repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the AIR-CO2 design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which Xerolux chose for the repository.
More boards in IDM-Smart-Climate-Platform
ESP32IDM-RoomSensor-ESP-B-ES4-AIR-R2
130 × 100 mm102 parts4LCERN-OHL-S-2.00
ESP32IDM-RoomSensor-ESP-B-ES5-MODULAR
130 × 100 mm84 parts4LCERN-OHL-S-2.00
ESP32IDM-RoomSensor-ESP-B-ES3-C6
130 × 80 mm80 parts4LCERN-OHL-S-2.00
ESP32IDM-RoomSensor-ESP-B-ES2-C6
110 × 70 mm52 parts4LCERN-OHL-S-2.00
AVR/ArduinoIDM-RoomSensor-Classic-B-ES1
145 × 78 mm22 parts2LCERN-OHL-S-2.00
ESP32IDM-RoomSensor-ESP-B-ES1
145 × 78 mm20 parts2LCERN-OHL-S-2.00
ESP32IDM-FakeSensor-ESP-B-ES1
145 × 78 mm18 parts2LCERN-OHL-S-2.00
AIR-VOCNOX
25 × 25 mm9 parts4LCERN-OHL-S-2.00
ESP32IDM-FakeSensor-ESP
64 × 42 mm7 parts2LCERN-OHL-S-2.00
ESP32IDM-RoomSensor-ESP
58 × 38 mm6 parts2LCERN-OHL-S-2.00
AVR/ArduinoIDM-RoomSensor-Classic
38 × 28 mm6 parts2LCERN-OHL-S-2.00
Similar boards
Sensor smd
scottbez1
40 × 20 mm5 parts2LApache-2.04.2k
Sensors
StuckAtPrototype
15.2 × 9 mm14 parts4LApache-2.03.8k
Microphone
Mentra-Community
5.5 × 6.1 mm6 parts2LMIT1.2k
TemperaturePCB PANEL
stuartpittaway
116 × 75.5 mm178 parts2LCC-BY-NC-4.01.1k
Pots
shanteacontrols
390 × 93 mm75 parts2LApache-2.0956
ButtonsLEDs
390 × 37 mm82 parts2LApache-2.0956