Crate mh_z19

Winsen Infrared CO2 Module MH-Z19 / MH-Z19B / MH-Z14 serial “api” implementation.

MH-Z19 Datasheet

MH-Z19B Datasheet

MH-Z14 Datasheet

This crates proposes two kinds of functions:

• functions for parsing response read from the uart
• functions to create command payload to send to the sensor though the uart.

Enums

MHZ19Error

Functions

calibrate_span_point

Create a command to calibrate the span point.

calibrate_zero_point

Create a command to calibrate the zero point.

parse_gas_concentration_ppm

Get the CO2 gas concentration in ppm from a response packet.

parse_gas_contentration_ppmDeprecated

Get the CO2 gas concentration in ppm from a response packet.

parse_payload

Extract the payload from a packet, validating packet length, checksum & header.

read_gas_concentration

Create a command to read the gas concentration of the sensor.

set_automatic_baseline_correction

Create a command to enable or disable Automatic Baseline Correction (ABC)

set_detection_range

Create a command to set the sensor detection range (MH-Z19B only).

Type Aliases

Packet

Both input and output packets are 9 bytes long