(Raspberry Pi 2, model B, V1.1 - buster OS - all updated / upgraded - smbus loaded on)


I am quite new to the Raspberry Pi and recently I have hit a brick wall. I am trying to link the Raspberry Pi to a BH1750 photoresistor following this tutorial: https://www.raspberrypi-spy.co.uk/2015/03/bh1750fvi-i2c-digital-light-intensity-sensor/

However, the I2C is not recognising it. When I type in the command: sudo i2cdetect -y 1 , instead of coming up with address 23, it outputs many addresses onto the screen.

I have checked connections, soldered the the pins onto the bh1750, but no change. Even used a different Raspberry Pi (Pi3, model B+), still no good.

I have attached some images of the setup. Any help would be gratefully received as I have run out of ideas on this one.

Much appreciated,

  1. https://images.wgsbcomputing.com/20200516_002041.jpg
  2. https://images.wgsbcomputing.com/20200516_002133.jpg
  3. https://images.wgsbcomputing.com/20200516_004643.jpg
  4. https://images.wgsbcomputing.com/20200516_004742.jpg
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    It is unclear from the broken link what you are trying, but a 5 year old post for an obsolete OS is unlikely to apply. – Milliways May 16 '20 at 10:55
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    Could you tell me what you mean by a 5 year old post, an obsolete os? The post has been put on today and I have recently upgraded from stretch to raspbian buster a few weeks ago. Not sure about a broken link if you would like to explain? – Jake May 16 '20 at 11:53
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    Did you do a fresh install of Buster? Upgrading is not recommended. – CoderMike May 16 '20 at 12:42
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    No, I followed a tutorial to update it from Stretch. Appears to have worked with a BME280 (temp, humidity, air pressure sensor) which pickes up address x77. Not so with the BH1750 photoresistor though. – Jake May 16 '20 at 12:51
  • 1
    Sorry Milliways, here is the link: raspberrypi-spy.co.uk/2015/03/… – Jake May 16 '20 at 12:53

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