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    Topics created by Steve Parsons

    • Steve Parsons

      [SOLVED] BH1750 Light level sensor not reading after sleep
      Troubleshooting • • Steve Parsons  

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      virtualmkr

      Hi @Steve-Parsons, short question: do you have applied the external pull-up resistors for the two I2C bus lines? Some modules have them built-in but others not. E.g. the Lolin Wemos shield has them already connected to power with two 4.7k resistors. See schematic for it: sch_bh1750_v1.0.0.pdf If not, you should try this. May be your first module is not defect, but only the resistors are missing?
    • Steve Parsons

      Sensors won't connect to Gateway after adding Controller
      Home Assistant • • Steve Parsons  

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      Steve Parsons

      Thank you so much @BearWithBeard for this, it's really helpful. I decided to try using a serial gateway and have had more success. The sensor is connecting and getting an ID from the controller. Although the gateway drops out when i reboot my Pi and I have to unplug, reconnect and restart HA! Not the end of the world, and certainly better than no connection, but a bit annoying. I'd like to use an Ethernet gateway if I can so I'll try your suggestion of static ID's and see what happens. I like the idea of organising things as you suggest, so may well end up doing that anyway. I'll try the static route to the gateway too if still no luck - very useful info. I'm using Uno's at the minute while I test/set it up and am powering them via USB from a laptop (sensor) and an NUC (Gateway). Although my serial gateway is connected via USB to the Pi running HA. No capacitors at this point either. They are within a few metres of each other so don't think range is the problem. Will amend my HA Config as you suggest, again useful info. Only other thing I didn't mention is I'm using a 5100 shield breakout board on the gateway rather than the board in the tutorial, not sure if this affects power or is relevant! Again, thank you, really appreciate your advice! I was completely stuck so really nice to have options now.