张三叔

BH1750 light sensor

Overview

BH1750 sensor module

Module parameters

I2C digital interface, supporting speed up to 400Kbps
The output quantity is illuminance (Illuminance)
Measuring range 1~65535 lux, resolution as small as 1 lux
Low power consumption (Power down) function
Shields interference from light changes caused by 50/60Hz mains frequency
Supports two I2C addresses, selected via ADDR pin
Small measurement error (maximum accuracy error +/-20%)

Module pin description

pin	illustrate
VCC	Supply voltage source positive
GND	Supply voltage source negative pole
SDA	IIC data line, bidirectional IO port, used to transmit data
SCL	IIC clock line, clock input pin, clock output by MCU
ADDR	IIC address line, when connected to GND, the device address is 0100011, when connected to VCC, the device address is 1011100

Detailed tutorial: Super detailed guide to BH1750 light sensor (from principle to code explanation, you will understand after reading it)

appendix:

BH1750 library file

BH1750 test code

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-05-04 20:18:57

Is TIDSP currently out of stock?
Recently, I often see people looking to buy TI DSPs online, and the prices are shockingly high, rising more than 10 times. Is it because TI's production capacity is insufficient, or is the current mar
Looking forward to FPGA
Thank you for the development board provided by the moderator! I hope to have a chance to try it out and learn from it!
Design and Application of OP Amplifier
As the title says, a document about OP amplifier! ~
Is it possible to have such a section?
Recently, I have been worried about PCB board making, especially power electronics. Components are hard to find, and I don’t know whether there are many components I want (for example, a 500V 1500uF c
[Urgently looking for experienced people to develop BLE positioning tag software based on TI CC2540]
BLE positioning is based on RSSI+sensor. Beacon has been implemented. Now we need to develop the corresponding Tag. Tag hardware is already available, so we use the beacon board. Now we need to develo
ADuCM360 Development Systems Getting Started Tutorial 2
ADuCM360 Development Systems Getting Started Tutorial 2

Datasheet More

Circuits More