HIH 4000 DATASHEET PDF

Description. The HIH Series Humidity Sensors are designed specifically for high volume OEM (Original Equipment Manufacturer) users. Direct input to a. Description. The HIH Series Humidity Sensors are designed specifically for high volume. OEM (Original Equipment Manufacturer) users. Direct input to a. Honeywell HIH available from 25 distributors. Explore Sensors on Octopart: the fastest source for datasheets, pricing, specs and availability.

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I’ve done that, but, at the end, I used 56ohm and 50ohm multiturn trimmer to get “real” value and also, I’m planning to go to meteo station dataasheet compare results with their RH sensors One more thing, can you, please, tell me in which software you done simulation and can you send me file to try myself?

HIH Humidity Sensors – Honeywell

Hi, It works great!!! As True is always true the while loop will keep running until you exit the program with a Ctrl-C. Temperature is probably ok, cause it’s digital, but humidity is calculated from analog signal so I can’t say if it’s accurate. HIH humidity sensor, can’t make it work.

You will now have a humidity reading from your sensor on the console which is updating twice a second. I should check that over tomorrow. The AB Electronics python library uses another library called python-smbus, you can install it using apt-get with the following commands. My mind is too tired, I guess. Not related to my issue. You will need to enable i2c on your Raspberry Pi, see our other tutorial on i2c: Hi, No, zero offset for HIH is 0. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.

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You also mention temperature sensors and one well known voltage regulator. This can be datashwet with a simple while loop. You can use your favourite text editor for writing the program. OK, here’s what I need: Now create a function to calculate the humidity based on the voltage output from the ADC Pi Plus def calcHumidity inval: I don’t know if this is right.

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Hi, Thanks a lot, I’ll try it immediately and let you know We also add variables to hold the values related to the sensor data conversion. Raspberry Pi Zero Expansion. Ddatasheet art of getting good answers lies in asking good questions. Was this article helpful? For a better experience, please enable JavaScript in your browser before proceeding. You must log in or register to reply here. Again thanks very much. PaulS on Jul 08, I can’t say anything about the humidity, but last days have been really warm.

There must be some error in my calculations. Sensor in connected to analog input 5 and supply voltage is measured with analog input 4.

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HIH humidity sensor, can’t make it work

Thread starter stuplja Start date Mar 3, To dztasheet you need to register. Just one more question about calibration, I mean, how to set output current exactly from mA, can I replace ohm on emitter with trimmer to adjust output current?

PaulS Brattain Member Posts: I should probably find calibrated moisture meter and then compare. I suppose it will help me to better understand whole circuit.

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HIH have linear voltage output from 0. You have an humidity sensor.

If I put sensor in higher humidity, analog input voltage rises. Vout is voltage from sensor and Vsupply is Arduino’s supply voltage. Datasheets, Manuals or Parts.

PDF page 6 Thanks in advance For this tutorial we will start by creating a new python program file called demo-hih Forums New posts Search forums. I have one more HIH sensor, but it only outputs 3. Long time passed since school and math lessons.

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