{"id":5506,"date":"2023-02-04T13:13:47","date_gmt":"2023-02-04T13:13:47","guid":{"rendered":"https:\/\/www.andrewhope.co.uk\/Blog\/?p=5506"},"modified":"2023-02-04T13:18:36","modified_gmt":"2023-02-04T13:18:36","slug":"bh1750-lightmeter-for-home-weather-station","status":"publish","type":"post","link":"https:\/\/www.andrewhope.co.uk\/Blog\/bh1750-lightmeter-for-home-weather-station\/","title":{"rendered":"BH1750 Lightmeter for Home Weather Station"},"content":{"rendered":"
\n

Another sensor to add to the collection for my Home Weather Station project. I’m adding a Lux level sensor so that I can record the Lux levels thorughout the day. Not sure what for yet, perhaps for some automated sensors, or just to add to it. The more sensors the merrier I say. The better the readings and the more data you can log<\/p>\n

What code am I using?<\/h2>\n

This is the code I’m using on my ESP8266 mini. I’m switching because my Arduino Nano doesn’t have built in WiFi and this device is more powerful and supports Arduino<\/p>\n

 <\/p>\n

#include <BH1750.h><\/p><\/div>\n

#include <Wire.h><\/div>\n
BH1750 lightMeter;<\/div>\n
void setup() {<\/div>\n
\u00a0 Serial.begin(115200);<\/div>\n
\u00a0 \/\/ Initialize the I2C bus (BH1750 library doesn’t do this automatically)<\/div>\n
\u00a0 Wire.begin();<\/div>\n
\u00a0 \/\/ On esp8266 you can select SCL and SDA pins using Wire.begin(D4, D3);<\/div>\n
\u00a0 \/\/ For Wemos \/ Lolin D1 Mini Pro and the Ambient Light shield use<\/div>\n
\u00a0 \/\/ Wire.begin(D2, D1);<\/div>\n
\u00a0 lightMeter.begin();<\/div>\n
\u00a0 Serial.println(F(“BH1750 Test begin”));<\/div>\n
}<\/div>\n
void loop() {<\/div>\n
\u00a0 float lux = lightMeter.readLightLevel();<\/div>\n
\u00a0 Serial.print(“Light: “);<\/div>\n
\u00a0 Serial.print(lux);<\/div>\n
\u00a0 Serial.println(” lx”);<\/div>\n
\u00a0 delay(500);<\/div>\n
}<\/div>\n","protected":false},"excerpt":{"rendered":"

Another sensor to add to the collection for my Home Weather Station project. I’m adding a Lux level sensor so […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wprm-recipe-roundup-name":"","wprm-recipe-roundup-description":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_links_to":"","_links_to_target":""},"categories":[928,1256],"tags":[1801,1799,1800],"class_list":["post-5506","post","type-post","status-publish","format-standard","hentry","category-projects","category-science-and-technology","tag-bh1750-sensor","tag-home-weather-station","tag-weather-station-sensors"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t