I've ordered the PCB but i din't recieved it yet. And I'm not responsible for any damage.
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)
comming soon. The one in the Reichelt Magazin link above should work.
- soldering iron
- solder
- 3x 220 Ohm Resistor
- 1x Green LED
- 1x Yellow LED
- 1x Red LED
- 1x 12mm Buzzer
- optional 1x 220 Ohm Resistor