14 commits

Author	SHA1	Message	Date
Portagoras	093774f701	Correction ... The datasheet clearly says that the CO2 level is 2000x(th-2ms)/(th+tl+4ms), so I think here it should say 2000 too. At least that resulted in way better results for me.	2020-07-01 22:57:48 +02:00
Tobias Schürg	af5c565990	Make times unsigned long to avoid overlow ... on 16 bit architectures. Closes #10	2019-09-08 11:21:55 +02:00
Andreas Horn	253f8ae7d1	implements various small fixes and improvements ... * the preheating time is now a constant variable too * it is no possible to initialize the senor without PWM xor without (Soft-)Serial *	2019-06-08 13:37:21 +02:00
Andreas Horn	8d677f5dce	fixes wrong responsetimes for the sensors, it is seconds, not milliseconds according to the datasheet.	2019-06-08 11:11:46 +02:00
Vladimir Kozlov	03d8500042	Added support of generic streams instead of software serial.	2018-12-31 10:04:11 +02:00
mariusebastian	f96cf2abc6	Debug info and temperature update ... Prevent "...Status maybe not OK.." from always being printed when debug is on. Changed the is !isReady check to isPreHeating when getting the latest temperature. The isReady check prevents the function from returing the pre stored temperature within MHZxxx_RESPONSE_TIME after the UART data has been requested. This is an unnecessary restriction.	2018-09-24 12:12:02 +02:00
flatsiedatsie	7e401b4625	Save some memory ... Instead of just creating an issue that the library uses a lot of memory, I wanted to save you some work instead. I have not tested this code, but i have double checked it.	2018-09-10 20:41:05 +02:00
Tobias Schürg	252266c130	Extracted response times.	2018-09-04 22:33:00 +02:00
Tobias Schürg	83ba964a90	Implemented isPreHeating and isReady.	2018-07-07 16:05:40 +02:00
Tobias Schürg	99729af090	Added isPreheating and isReady to MHZ.h and reformatted.	2018-07-07 12:59:32 +02:00
Tobias Schürg	7158f63459	Introduced status codes as return values.	2018-07-04 23:20:12 +02:00
Tobias Schürg	a66da23b89	Changed status handling as it seems as if the mhz19B returns 0 instead of 0x40 like the mhz19.	2018-06-24 14:38:42 +02:00
Tobias Schürg	29ea8e92bc	Added a debug mode and improved log messages.	2018-06-24 12:22:50 +02:00
Tobias Schürg	ddef5ff84f	Extracted MHZ logic into its own class.	2018-06-23 14:32:55 +02:00

Renamed from MH-Z19B-LCD/MH-Z19B-LCD.ino (Browse further)