Farzad_k
@farzad_k
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Joined: 2021-08-30 8:40 am
Last seen: 2022-09-07 4:07 am
Topics: 9 / Replies: 66
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RE: ESP-32 and DHT22

const int analogPin0 = A0; //relative humidtyconst int analogPin1 = A1; //temp sensor1const int analogPin2 = A2; //temp sensor2const int analogPin3 = ...

3 years ago
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RE: ESP-32 and DHT22

Of course the relationship between analogValue and analogWrite to the mosfet is not linear and has to be determined more thoughtfully, for example wit...

3 years ago
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RE: ESP-32 and DHT22

@will good idea. I can take a few TMP36 sensors and spread them around the front element retainer of my scope, hook them up in parallel, take the aver...

3 years ago
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RE: ESP-32 and DHT22

@will Once the dew point [temperature] (DPT) is calculated using the reported temperature (T) and relative humidity, then the delta between the DPT an...

3 years ago
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RE: ESP-32 and DHT22

Generally speaking the ideal imaging location is where the skies are the least polluted. This coincides with a lack of all services, but internet can ...

3 years ago
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RE: ESP-32 and DHT22

Here is an article on how to calculate dew point. For simplified cases it proposes: Td = T - ((100 - RH)/5.) Here is an online calculator. ...

3 years ago
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RE: ESP-32 and DHT22

@will Thanks, I will.

3 years ago
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RE: ESP-32 and DHT22

Thanks. I have an I2C board coming along with the display unit already. It would have been good if TinkerCAD had an I2C board to save us from all that...

3 years ago
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RE: ESP-32 and DHT22

DHT22, sorry, the humidity and temperature sensor. Eventually, rather than taking action on one element, action should be taken on the result of an ...

3 years ago
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RE: ESP-32 and DHT22

At the moment I have limited success in programming a circuit to respond to temperature change using TinkerCad. Once I fully understand, and can make ...

3 years ago
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RE: ESP-32 and DHT22

@will I see, and I think you had told me that before. [1] Sensor sends pertinent data to the microcontroller. [2] microcontroller decides what dut...

3 years ago
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RE: ESP-32 and DHT22

@madmisha Thanks a lot. I will certainly look into the SHT31. It looks like it has a couple of ports and that it might need a housing of its own. Ye...

3 years ago
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RE: ESP-32 and DHT22

@will I am sure that you are right. But if the outputs are either high or low, how will you tell the MOSFET to allow more voltage to pass through?

3 years ago
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RE: ESP-32 and DHT22

@madmisha Thanks for the valuable information. My astro-imaging rig has a stick-PC onboard it and the stick-PC runs all the software and hardware. I...

3 years ago
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