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💬 Hmi4DinBox

openhardware.io 10 Mar 2019, 15:16 last edited by openhardware.io 12 Mar 2019, 20:18

https://www.openhardware.io/view/681/Hmi4DinBox
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arduino 119 raspberry pi 27 i2c 13 hmi 1 din enclosure 1 nano pi 1

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a spark core wouldnbe the best in this case
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following this thread loosely. I have the following sensors and they seem to be accurate to some degree: http://www.aliexpress.com/item/DFRobot-Capacitive-Analog-Soil-Moisture-Sensor-3-3-5-5V-Corrosion-Resistant-with-Gravity-3-Pin/32574020064.html?spm=2114.01010208.3.2.P99ddH&ws_ab_test=searchweb201556_0,searchweb201602_1_10037_10017_507_10033_10032_10040,searchweb201603_1&btsid=8d3b5e46-a069-441a-a1f7-491ae7e317e1 and they are much easier to work with Arduino compared to Watermark stuff. Anyone agree?
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@kimot in theory you might be right, but in practice... it just works. The propability of collisions is extremely low and this is, as far as I know, the only problem you can worry about. After all, it was not my idea to use MySensors with RS485: https://www.mysensors.org/build/rs485
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I see a lot of "!TSF" and "NACK" which seems to be radio communication problems. That's MySensors related and can be related to many things, from soldering problem to power / capacitor issues. In MY_DEBUG mode you should see your temp/hum printed on serial every ~15s so there is something wrong there, either wiring or a code issue. Ty with the example included with the library "i2c_SI7021.h", without any MySensors related stuff, to see if your sensor is detected. You should see temp/hum on the serial.
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@terxw okey, thanks for reporting back !! Let me know if there is something else. This is a 0.5v so I'm open for improvements.
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First soldered device: And a small test:
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isn't it just SEXY ?

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