Questions tagged [temperature]
The temperature tag has no summary.
33 questions
0 votes
1 answer
196 views
DS18B20 doesn't work reliably
like discribed in the title my temperature sensor goes to -127 after a few minutes of run time, it works again after a restart, I have already replaced the sensor and I'm using the same code for the ...
- 21
0 votes
2 answers
358 views
How to use the M117 temperature sensor from mysentech?
Anyone can help me decode the temperature of the M117 chip from mysentech.com? I tried things, but I get a constant raw value of 0xFFFF, which becomes 1 once 2's complemented is applied. The chip ...
- 173
0 votes
1 answer
261 views
What's the difference between CloudTemperature, CloudTemperatureSensor and Float data types?
I have a SHT30 sensor for Wemos and I am learning to use Arduino IOT Cloud. I use float data type for my temperature variable but I see two more data types: CloudTemperature CloudTemperatureSensor ...
- 448
1 vote
0 answers
2k views
MAX31865 and PT100 readings problem
PT100 (3 wire) is connected to arduino uno as i believe i have them connected properly, i have checked other forums such as changing the capacitor to ferrite core, and probably changing up to 4 ...
3 votes
3 answers
278 views
Endurance of Arduino UNO during 24/7 operations and mild power fluctuations
I am designing an automation system for my research project and planning on using Arduino Uno to do the same. The program is to execute simple instructions based on few input parameters and does not ...
0 votes
1 answer
386 views
How to you initialize a reset on a sht30 digital thermometer?
I have a sht30 that will output correct temperature readings for about 5 min and then will drift off. So I'm trying to hit the reset every few seconds to keep the readings accurate. I am on a nano ...
- 201
1 vote
0 answers
237 views
Output from LM35 temperature sensor varies wildly
I've seen other posts on this board which related to output from the LM35 sensor, but mine seem to be more 'extreme' than anything else I've seen. I've connected the pins as is commonly suggested - ...
- 11
1 vote
2 answers
299 views
Using LM70 temperature sensor with Arduino
I am trying to sense the temperature using the LM70 temperature sensor with an Arduino Mega. As you can see in the Datasheet, it uses the SPI protocol. I have made the following connections (VSSOP-8 ...
- 11
2 votes
1 answer
153 views
L293D to change the direction current and amplify it - Temperature-Stabilizer
I have a question about my project. I'm going to make a temperature-stabilizer. To make this, I think I should use a TEC with a H-bridge and a LM35. First of all, I tried to make a H-bridge by myself, ...
- 21
1 vote
1 answer
330 views
Problem with if condition
So my project is including detecting the temperature in the room by using dth11 sensor. my idea is to add 3 LED lights were each light represent the temperature if its cold or hot or perfect. the ...
- 11
1 vote
0 answers
65 views
Noob here.. Need help with a thermostat controlled relay
So After trying several sketches for a LM35 and none working I finally found one that was giving me accurate results. The problem is the code is way over my head. I was able to modify it enough to get ...
- 11
1 vote
2 answers
552 views
need to compare if a byte is less than 80 hex
I am using an infrared sensor called OTI301. In its data sheet it says that in order to obtain object temperature and ambient temperature values I need to extract the binary information from the ...
0 votes
1 answer
173 views
Extract binary numbers from infrared sensor that uses I2C bus
I have an infrared sensor(OTI 301) which in order to display the desired temperature I need to apply a formula that depends on 3 binary numbers extracted from the sensor itself. I have tried different ...
0 votes
4 answers
2k views
How to heat the air with arduino?
I have a plant growing box, fully controlled with arduino. Youtube: ESP8266 IOT Flora All things are under control, besides the air temperature. I can cool it down running fans, but cannot find a ...
- 161
-1 votes
1 answer
550 views
2 analog sensors, pulse sensor and LM35 problem [closed]
I make a project in which I use two analog sensors. A pulse sensor and the LM35 temperature sensor. When I use them separated everything is normal,the codes are fine, when I combine them the lm35 is ...
