Command definition for the BH1750FVI light sensor. More...

Detailed Description

Command definition for the BH1750FVI light sensor.

Author: Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file bh1750fvi_internal.h.

#define	RES_DIV (78642)
	Result divisor (1.2 times 65535)

Opcodes
#define	OP_POWER_DOWN (0x00)

#define	OP_POWER_ON (0x01)

#define	OP_RESET (0x03)

#define	OP_CONT_HRES1 (0x10)

#define	OP_CONT_HRES2 (0x11)

#define	OP_CONT_LRES (0x13)

#define	OP_SINGLE_HRES1 (0x20)

#define	OP_SINGLE_HRES2 (0x21)

#define	OP_SINGLE_LRES (0x23)

#define	OP_CHANGE_TIME_H_MASK (0x40)

#define	OP_CHANGE_TIME_L_MASK (0x60)

Measurement delays (in us)
#define	DELAY_HMODE (120000)
	typ.

#define	DELAY_LMODE (16000)
	typ.

Macro Definition Documentation

◆ DELAY_HMODE

#define DELAY_HMODE (120000)

typ.

120ms in H-mode

Definition at line 56 of file bh1750fvi_internal.h.

◆ DELAY_LMODE

#define DELAY_LMODE (16000)

typ.

16ms in L-mode

Definition at line 57 of file bh1750fvi_internal.h.

◆ OP_CHANGE_TIME_H_MASK

#define OP_CHANGE_TIME_H_MASK (0x40)

Definition at line 48 of file bh1750fvi_internal.h.

◆ OP_CHANGE_TIME_L_MASK

#define OP_CHANGE_TIME_L_MASK (0x60)

Definition at line 49 of file bh1750fvi_internal.h.

◆ OP_CONT_HRES1

#define OP_CONT_HRES1 (0x10)

Definition at line 42 of file bh1750fvi_internal.h.

◆ OP_CONT_HRES2

#define OP_CONT_HRES2 (0x11)

Definition at line 43 of file bh1750fvi_internal.h.

◆ OP_CONT_LRES

#define OP_CONT_LRES (0x13)

Definition at line 44 of file bh1750fvi_internal.h.

◆ OP_POWER_DOWN

#define OP_POWER_DOWN (0x00)

Definition at line 39 of file bh1750fvi_internal.h.

◆ OP_POWER_ON

#define OP_POWER_ON (0x01)

Definition at line 40 of file bh1750fvi_internal.h.

◆ OP_RESET

#define OP_RESET (0x03)

Definition at line 41 of file bh1750fvi_internal.h.

◆ OP_SINGLE_HRES1

#define OP_SINGLE_HRES1 (0x20)

Definition at line 45 of file bh1750fvi_internal.h.

◆ OP_SINGLE_HRES2

#define OP_SINGLE_HRES2 (0x21)

Definition at line 46 of file bh1750fvi_internal.h.

◆ OP_SINGLE_LRES

#define OP_SINGLE_LRES (0x23)

Definition at line 47 of file bh1750fvi_internal.h.

◆ RES_DIV

#define RES_DIV (78642)

Result divisor (1.2 times 65535)

The 16-bit RAW results have to be divided by 1.2. We do this by using fixed floating point arithmetic by multiplying divisor and RAW value by 65535 ( uint16_t max).

Definition at line 33 of file bh1750fvi_internal.h.