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Post by markusk on Oct 24, 2018 8:40:34 GMT -8
hey there, i recently purchased a WeatherBoard, hoping to build a wired weatherstation with it, as there doesn't seem to be such thing to buy anymore.. now that i've got all parts at hand i wanted to start getting it set up with an arduino nano which eventually should pass the data to an openwrt device via a serial connection. but it seems i'm having issues with i2c with the nano and your provided software-stack (till now i just tested with a particle core and their libraries - which worked fine). running the i2c-scanner on the nano does consistently find 3 devices on the bus (0x57 0x68 0x77). but using SDL_Arduino_Weatherboard.ino i'm getting "BMP280 Not Present", only the RTC seems to be recognized.. any idea what might go wrong and/or how to debug? tia, markus.
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Post by SDL on Oct 25, 2018 16:14:46 GMT -8
Markusk,
Show me how you have it wired up EXACTLY!
Then I can probably help you figure it out.
BP
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Post by markusk on Oct 28, 2018 4:22:10 GMT -8
well, it seems i just figured it out myself..
though stated in multiple places of specs&docs that the I2C tolerates 3.3 AND 5V - the BMP280 seems to not work with 5V on JP4/VDD. i got suspicious when sometimes seeing values coming in once right after reset/reboot but after that the sensor seemed to have gone..
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Post by SDL on Oct 29, 2018 13:21:24 GMT -8
Markusk,
I'll give this a try myself and look at the schematic.
BP
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