DS18B20 Fake Sensor That Works!

DS18B20 - the most popular temperature sensor among Arduino users.
A use them a lot in my projects.
What I did not expect, is to find a counterfeit DS18B20 sensor that actually works.
Well, the Fake sensor doesn't support 9, 10-bit resolution, and doesn't work with a long 1-wire bus. But I am still impressed with the fake.

[stevesibert]

Very good info. I have 10 sensors connected to two channels of a PIC micro. 8 on one channel and two on the other. They are spread all over my house - from outside (20 feet of wire) to the garage on the other side of the house (80 feet of wire: Freezer, Refrigerator, garage temp, and attic temp - 4 sensors), and furnace flue, furnace intake, hot water pipe) and others, in a star connection - not all in a row, but a lot of branches. They all feed my Linux box over RS-232. I really like your tester and phone app! Nice work.

[grpapajim]

Very useful! Thanks for the inspiration. For someone who doesn't need to test sensors all the time though, it's worth mentioning that can find ready made example sketches to run in Console and test Resolution, Speed and Alarms...

[twojanazwa]

Now i know why I have problems with those sensors. I will test all my sensors using your code!
thanks!

[Rcbeacon]

Rather than being a individually trimmed special function chip, the fake may be a microcontroller and lower spec sensor, the microcontroller mimicing the 1-wire protocol. With conversion time being faster, power draw maybe higher, making it less compatible with a long bus or more devices connected.

[marmictanghus]

You just solved my one wire problem. A 1000 thanks :-)

[bgable]

Nice job, I didn't know about this issue. I'll use your tester on the next batch I get. Thanks

[tomidabjakoaudytorprzewazn]

What is this ESP firmware that displays on the website all the things you showed in the video?

[profounddevices]

yes i got fake vl6080 sensors from a Chinese vendor on amazon. the range works ok but has noise, and the ambient light sensor does not exist. thanks for the video!

[matheusgalvao]

Thank you very much your video helped me a lot, you answered my doubts based on the datasheet, this video was amazing.

[selorius]

it is possible to use arduino to measure the temperature and set and control 12v valves, there would only have to be 26 zones, I want to do cooling for the computer, there will be 26 peltier systems and 26 temperature sensors in the cooling system, I want to control it so that there is about 5 "c on the cpu at the cooling outlet 125'c

[yyymmmddd]

What software do you use on your smarphone to display all the values from the sensors?

[pfovsnl]

I had 3 fake DS18B20 in stainless tube - they doesn't work with transistor tester. Other three are good, but now I'm not sure that they are not fake as well.

[tomidabjakoaudytorprzewazn]

What the software on SmartPhone? Very good, in my opinion.

[an_R_key]

Thanks very much for the info. Saved us lots of trouble.

[DirkTas]

Is it possible to get the wire connections/ pin numbers on how the display, ESP and ds18b20 are connected?

[vellakoil_Kattuseval]

Am getting temperature as -127 degree always. Can you help?

[matteofiorelli]

Hi, nice video. I uploaded your sketch to an esp8266 but the timecon is fixed at 752ms. Can you help me?

[ddd]

hi ake gpio su on lcd?

and which gpio on the sensor?

[softa]

Hello, I need a little help, it's a temperature sensor
DS18B20.
I wonder if I can influence it to read the wrong temperature.

I need to cheat the electronics to which such a sensor is connected at a given moment.

It is an electronics for a pellet burner, more precisely a centrometal burner from 2012, and the principle of its operation is such that when the water temperature in the boiler drops below 60 degrees, it goes into automatic ignition. The ignition automatically goes should or should not need hot water.
I tried everything but the only solution is to fool the electronics and give it the wrong information about the water temperature, that is. that the electronics receive a signal that the water temperature is 60 degrees or higher.

Thanks in advance.

[teenkode]

Блиин, а по-русски еть где-то?😂😂
У тебя акцент, как меня в 5 классе))