/veml7700-spin

P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the Vishay VEML7700 Lux sensor

Primary LanguagePropeller SpinMIT LicenseMIT

veml7700-spin


This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for the VEML7700 ALS/Lux sensor.

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

  • I2C connection at ~28kHz (P1: bytecode I2C) or up to 400kHz (P1: native code I2C, P2)
  • Measure illuminance in lux (0.00001 units), get max possible reading with current settings
  • Read ADC word for ALS and white channels
  • Set sensor gain and integration time
  • Interrupts: set thresholds, read flags, set duration in cycles
  • Power: power sensor on/off, enable power saving modes

Requirements

P1/SPIN1:

  • spin-standard-library
  • 1 additional core/cog for the PASM-based I2C engine (or none if the bytecode-based engine is used)

P2/SPIN2:

  • p2-spin-standard-library

Compiler Compatibility

Processor Language Compiler Backend Status
P1 SPIN1 FlexSpin (6.9.4) Bytecode OK
P1 SPIN1 FlexSpin (6.9.4) Native/PASM OK
P2 SPIN2 FlexSpin (6.9.4) NuCode OK
P2 SPIN2 FlexSpin (6.9.4) 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
  • TBD