2 layers169.1 × 252.5 mm
Airguard v1
open-lv/air-guard
Do-it-yourself electronics kit for building an air quality monitor for your school, work and home.
38 parts7MIT
2 layers94 × 68.6 mm
CO2Sensor
JensFZ/CO2Sensor_PCB1Added external power suply, leds and a buzzer (all of them are optional)
- Size
- 94 × 68.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 40
- Pads
- 67
- Tracks, vias
- 87, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Mar 2021
- Updated
- 6 Mar 2022
Overview
CO2Sensor is an open-source printed circuit board by JensFZ, from the JensFZ/CO2Sensor_PCB repository on GitHub. It is a 2-layer board of 94 × 68.6 mm with 18 parts on 40 nets, routed with 87 tracks and 0 vias.
It is built around the MH-Z19B. Its parts include 5 resistors, 3 diodes, 2 ICs and 1 connector. It belongs with the ESP32 boards of this library.
Main components
1README
README.mdCO2Sensor - PCB
Disclamer
I've ordered the PCB but i din't recieved it yet. And I'm not responsible for any damage.
What's it
PCB of a CO2 Sensor based on the following idea: Reichelt Magazin - CO2 Sensor
Added external power suply, leds and a buzzer (all of them are optional)
Firmware
comming soon. The one in the Reichelt Magazin link above should work.
Tools needed
- soldering iron
- solder
Part list:
Necessary parts
Optional parts
CASE
LEDs
- 3x 220 Ohm Resistor
- 1x Green LED
- 1x Yellow LED
- 1x Red LED
Buzzer
- 1x 12mm Buzzer
- optional 1x 220 Ohm Resistor
External Power
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965 | H1, H2, H3, H4 |
| 3 | LED | LED_THT:LED_D3.0mm | D1, D2, D3 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | DHT22_Temperature_Humidity | DHT22:DHT22_Temperature_Humidity | TH1 |
| 1 | ESP32_DevKit_V1_DOIT | luanode:esp32_devkit_v1_doit | U1 |
| 1 | MH-Z19B | MH-Z19:Winsen_MH-Z19B | U2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type059_RT06302HBWC_1x02_P3.50mm_Horizontal | J1 |
The 17 most common of 18 parts.
Questions
How big is the CO2Sensor PCB?
It measures 94 × 68.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CO2Sensor use?
18 parts, built around the MH-Z19B. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CO2Sensor KiCad files?
From the JensFZ/CO2Sensor_PCB repository on GitHub, at the commit this page was made from: the board is CO2Sensor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CO2Sensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask JensFZ before reusing the design.
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