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How to use HTU21D and HTU21DF Humidity and Temperature Sensor with Arduino 

Robojax
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17 окт 2024

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Комментарии : 18   
@7skies246
@7skies246 4 года назад
How could i use this sensor (HTU21D) with an Attiny85 board? The i2c scanner for attiny doesn't recognize the sensor...
@robojax
@robojax 4 года назад
Here use this for I2C scanner for digispark: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4HWkUrehXbY.html and I have shown how to use I2C display: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-U95hw-ec6nY.html learn and use it. good luck.
@HelmutHassfurther
@HelmutHassfurther 5 лет назад
Do you know the difference between HTU21DF and HTU21D? at aliexpress i only find the HTU21D. HTU21D-F is from Adafruit and HTU21D an chineese version with less features?
@robojax
@robojax 5 лет назад
the F refers to filter which this one doesn't have. However code is the same it is just physical filter that makes it different. The one I shown has no "F". I have updated the page where the code is the created image explaining that. See the links.
@adamwalter2573
@adamwalter2573 3 года назад
Is it really so good module that I paid for it $14 or was it overpriced ? Is there a simple python/C code I can use without adafruit sh...t ?
@robojax
@robojax 3 года назад
get the datasheet and write your own code.
@OMARSANCHEZ-cm4mf
@OMARSANCHEZ-cm4mf 4 года назад
How would be the programming using two HTU21D sensors?
@robojax
@robojax 4 года назад
Hi, I just wrote code to use 2 more of HTU21D sensor the link is in the description and here for you robojax.com/L/?id=274 for I2C, you need to take wires from A4 and A5 and share it with both sensors. I will try to put an image if I can.
@fatimamgaedeh4082
@fatimamgaedeh4082 3 года назад
Can I have four of HTU21D sensors at same time with one Mega Arduino?
@robojax
@robojax 3 года назад
Yes you can. You may learn it from different item but principles is the same ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L6ekl2ABcuY.html
@HelmutHassfurther
@HelmutHassfurther 5 лет назад
my aliexpress HTU21D has a deviation of 2 ° at 24.5 ° C (reports 26.7 ° C) compared to my exact DS18B20 both without activated pullups and with activated ones
@robojax
@robojax 5 лет назад
in that case correction is needed.
@johanjoju3801
@johanjoju3801 4 года назад
How yo interface this sensor with pic microcontroller
@robojax
@robojax 4 года назад
Hopefully someone will replay. I have no experience that PIC. (yet)
@deleted8961
@deleted8961 2 года назад
Download link not working
@robojax
@robojax 2 года назад
we are sorry, today we are migrating to a new system and many links are dead. I've just fixed this link. try it and if you faced problem, try it later today or tomorrow. We do our best to fix this issue.
@bollie9752
@bollie9752 5 лет назад
lol minus 6% humidity. But the device is impressively low power and accurate. Except for the humidity calculation...
@robojax
@robojax 5 лет назад
Yes. If I used absolute value, then we didn't know if it was actual 6% or some incorrect value.
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