According to datasheet, another sensor from Zhengzhou Winsen Electronics Technology, MH-Z14 has the same protocol as MH-Z19. At least I can't find any differences.
I tried this crate with MH-Z14 and it reads gas concentration successfully. This is my example repo.
According to datasheet, another sensor from Zhengzhou Winsen Electronics Technology, MH-Z14 has the same protocol as MH-Z19. At least I can't find any differences.
I tried this crate with MH-Z14 and it reads gas concentration successfully. This is my example repo.
I didn't yet checked if Zhengzhou Winsen Electronics Technology has any other sensors with the same protocol. This is webpage that lists CO2 sensors manufactured by this company.