avsa242/sht4x-spin

P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the SHT4x-series temperature/humidity sensors

sht40-spin

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This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the SHT4x-series temperature/humidity sensors.

IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.

Salient Features

• P1: I2C connection at up to 1MHz (PASM-based I2C) or ~26kHz (bytecode-based I2C)
• P2: I2C connection at up to 1MHz (NuCode build) 900kHz (PASM2 build)
• Read temperature, relative humidity (ADC words or scaled values)
• Set heater current and duration
• Set measurement repeatability
• Read the serial number

Requirements

P1/SPIN1:

• spin-standard-library
• sensor.temp_rh.common.spinh (provided by spin-standard-library)
• 1 extra core/cog for the PASM-based I2C engine (none if the slower bytecode-based engine is used)

P2/SPIN2:

• p2-spin-standard-library
• sensor.temp_rh.common.spin2h (provided by p2-spin-standard-library)

Compiler Compatibility

Processor	Language	Compiler	Backend	Status
P1	SPIN1	FlexSpin (6.5.0)	Bytecode	OK
P1	SPIN1	FlexSpin (6.5.0)	Native/PASM	OK
P2	SPIN2	FlexSpin (6.5.0)	NuCode	OK
P2	SPIN2	FlexSpin (6.5.0)	Native/PASM2	OK

(other versions or toolchains not listed are not supported, and may or may not work)

Limitations

• Very early in development - may malfunction, or outright fail to build