2 layers30.5 × 37.3 mm

Addon MH Z19
theArcher73/attnode-addon_mh-z19
small functional CO2-sensor based on attnode v3 and MH-Z19
14 parts3GPL-3.0
KiCad boards from 2 GitHub repositories tagged “attnode”, the most starred first; open any of them in PCBKit.

theArcher73/attnode-addon_mh-z19
small functional CO2-sensor based on attnode v3 and MH-Z19

theArcher73/attnode-powerpack
AddOn to use the attnode v2/v3 with 3.3-15V DC