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1answer
37 views

Connecting HC-06 and LM35

Hello I am trying to send temperature data via bluetooth using the HC-06 module. Since TXD and RXD only allow 3.3V I have divided the circuit into two like the below image. Is this method correct? or ...
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0answers
136 views

Temperature Sensor not giving proper values

In my current project I am reading temperature through sensor which is having only two wires. To read sensor values, I have used below schematic which I have found on Arduino Project Hub site. In my ...
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votes
2answers
580 views

Fluctuating readings of LM35 temperature sensor (+- 5°C) with Arduino UNO

I am trying to read a LM35 temperature sensor with Arduino UNO which I got as a gift. The issue is the fact, that my readings of sensor are, well, suspicious at least - they jump with each reading ...
0
votes
1answer
2k views

Need help with sending Arduino data to web page with ESP8266

I am developing a system that reads data from an LM35 temperature sensor and forwards it to a web page using an Arduino Uno and a ESP8266 WiFi Module. The data flow is as follows: LM35 --> Arduino ...
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0answers
36 views

Different behavior when Arduino Micro powered by laptop USB vs portable charger USB

I'm working on a project that uses an LM35 temperature sensor to control a few LEDs. Above 97 degrees, one LED should switch on. Below 95 degrees, it should switch off and the other should switch on. ...
1
vote
1answer
326 views

LM35 readings are erratic

My son just did the Love-o-meter project in the Arduino Start Kit. However, the sensor readings of the LM35 temperature control vary widely. Below is a sample. What could be wrong? Sensor Value: 217, ...
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0answers
464 views

LM35 gets very hot

I tried to connect a LM35 according the 'instructables' http://www.instructables.com/id/Arduino-Temperature-Sensor-Interfacing-LM35-THE-EA/step2/Setting-up-the-Arduino-with-temperature-sensor/ I ...