Arduino data logger with two temperature sensors (LM35DZ) from my 3D printing material in car test

Half years ago I had an experiment, what 3D printing material to use inside a car. In that video I used the results from Arduino temperature data logger, but only results were provided, and I promised, that whole Arduino project will be explained in a separate video (this one, with some delay).
So, in this video I will explain my Arduino data logger using data from two temperature sensors (LM35DZ), which are recorded on micro SD card. At the end, that data will be processed in Excel (or Google) table.
Hardware Required
Main elements:
Temperature sensors: LM35DZ (2 pcs)
MicroSD card adapter
Formated micro sd card (FAT and not NTFS)
Arduino Uno board
(I used Elegoo Arduino Uno, this is not affiliate link:)
Coupon code (20% off): PODWN6YH (1/28/2021 6:00 PM CET, 02/04/2021 11:59 PM CET)
ELEGOO UNO Super Starter Kit: rebrand.ly/60e03d
ELEGOO Official Website: www.elegoo.com/
Other:
Breadboard
Jumber wires
Power Bank with 5V output
Arduino IDE software on Windows computer
Data processed in Google Spreadsheet
Mentioned video: What 3D printing material to use inside car:
• What 3D printing mater...
LM35DZ on Arduino Project Hub (by Electorials Electronics):
create.arduino...
Micro SD card code (by ElectroPeak)
create.arduino...
Wiring diagram and final code can be downloaded from:
www.mytechfun....
Contents:
0:00 Introduction
0:31 Required Hardware
1:34 LM35DZ temperature sensor
4:45 Using two LM35DZ temperature sensors
5:51 Micro SD card adapter
9:36 Final Wiring diagram
10:28 Final code
13:58 Power consumption
14:16 Data logger in car
16:11 Analyzing recorded data
18:52 Outro
List of Arduino related videos:
www.mytechfun....
Support my work:
www.mytechfun....
Or just buy me a coffee:
buymeacoffee.c...
or become a Patreon:
/ mytechfun
#arduino #temperaturesensor #lm35dz #datalogger

[@batchrocketproject4720]

This is definitely one of the clearest temperature logging videos on youtube. Very well explained and straight forward design. Thanks for sharing.

[@danielkiefer4428]

This was good. You kept it well focused, but it was also clear how one could start customizing it to their own needs.

[@JohnJones-oy3md]

Love your well-thought-out methodology. I've been meaning to set up a temperature logging system like this to chart the temperature swings in various locations in a refrigerator that my mother uses to store her insulin. These modular systems have made it a lot easier than I would have done it in the old days (PIC uC, EEPROMs, RS-232 port, etc).

[@joshsekel]

Perfect level of complexity!

[@freddotu]

Very enjoyable tutorial/explanation and easily followed.

[@JohnJones-oy3md]

Good old LM34/LM35. Been using these in projects for 20+ years.

[@Drxxx]

I made a lot of projects using this sensor, cheap and works amazing

[@avejst]

Great video. As Simple as it should be Thanks for sharing :-)

[@reiner0609]

The DS18B20 I2C temperature sensor that you mentioned has one other advantage other than just the possibility to use longer cables: Since it has an internal reference source, you should in theory get more accurate measurements. The accuracy of the analog measurements done with the LM35DZ varies with the Vcc if you don't use a stabilized external reference source via the Arduinos Aref pin.

[@vasiliynkudryavtsev]

DS18B20 is 1-Wire, not I2C. But, ofc, it should be better.

[@WoLpH]

Very nice project and well executed :) I probably would be a bit lazier and simply use an ESP32 since they have SD card support natively and you can transfer the data through wifi

[@carlos.galhano]

A very good video, with a very good explanation. I'm beginning on Arduino, and so, I have some questions: 1) Why you don't connect Arduino to USB car Ports? 2) If I need more wire to the second sensor, for example, to put it outside my house, how can I do it? I'm trying to make a lab project, to measure rock temperature when they are taken outside a hooven at about 60ºC, to see the temperature downtrend. But I don't know what type of sensor to use, because I need to attach the sensor to the rock sample. And when do that, I must improve it, for example do the same but with 4 or 5 rock samples simultaneously. Can you help me, please?

[@MyTechFun]

1) Car USB port turns off after 5 minutes, when car is not in use. 2) Officially it is not recommend to use long wires, but I tried up to 2 meters, works great. You could try, test it with two sensors, one with short cable, other with long cables and compare the temperatures. If you really need very long wires, there are some digital temperature sensors, try them.

[@carlos.galhano]

@@MyTechFun Thanks. Another question, you use a PowerBank. How can you have certainty about the Voltage

[@ArvineHarry]

Hey gr8 job making this tutorial, i'm just getting into arduino and this has been something of interest, datalogging, is it possible to have a time stamp also with the logged data?

[@MyTechFun]

Yes, but time since the arduino is powered. Or you can set the clock, and use that as time stamp.

[@ajaipal1]

Thanks

[@chenartahir1865]

Hi. I would like to measure of 15 sample of MFC for voltage and current for 40 days continuous . How can i do it?

[@zeropoint5794]

Honestly i like how easy arduinos are to get into, but each time i see people asking how to make a project that simple(and also pretty common, bet one can find a dozen of these projects in a minute), a part of me dies inside. Esp that a lot of programming is done by slapping on premade libraries for premade modules.

[@avejst]

Yea, but often the libraries are testet, so the just work. If your intrest is to 3D print, and not program, then this i a god way to go ;-)

[@michaels3003]

Hello. I wanted to send you email, but there is no address on your YT channel.

[@MyTechFun]

There is an email, on About page.

[@michaels3003]

@@MyTechFun , I've found it once I used my home computer instead of my phone. Thank you for the reply.

[@WoLpH]

Btw, you might want to sensor the GPS information from your car. Not sure if that's your home address but you never know :)

[@MyTechFun]

Not home, but my workplace parking :-)