Hello, I am currently trying to get a DS18B20 temperature sensor to work on my esp32. However I get a compilation error. here is the code : #include <OneWire.h> #include <DallasTemperature.h> // GPIO where the DS18B20 is connected to const int oneWireBus = 32; // Setup a oneWire instance to…

Hi @pistache351 . Explanation Some significant changes were made in the recently released version 3.0.0 of the "esp32" boards platform that adds support to Arduino IDE for your ESP32 Dev Module board. One of those changes caused the new version of the "esp32" platform to be incompatible with the "O…

For my 30-pin ESP32 and DS18B20 seonsor, your sketch is compiled alright, uploaded fine, and shows correct room temperature readings on Serial Monitor. 31.50ºC 88.70ºF 31.50ºC 88.70ºF 31.50ºC 88.70ºF

[image] ptillisch: Some significant changes were made in the recently released version 3.0.0 What is the actual rate of issue-reports per week for this ESP32-core-Version 3.0.0 ?

For the benefit of anyone else who experiences this problem and finds this topic during their research for a solution, I have an update on the subject: I had made a comment on one of the related bug reports over on the "OneWire" library earlier while I was investigating the problem reported by @pis…

Thank you for providing this information! This saved me quite a bit of time today.

OneWire Library + ESP32

Projects Programming

ptillisch May 31, 2024, 2:44pm 8

You are welcome. I'm glad if I was able to be of assistance.

Regards,
Per

Topic		Replies	Views
OneWire doesn't find sensors after updating to ESP32 platform version 2.0.17 Nano ESP32	5	829	January 17, 2025
DS18B20 doesnt work on every GPIO pin Nano ESP32	48	692	April 19, 2026
Wire library on esp32 General Discussion	9	239	September 17, 2026
Code compilation error in arduino ide 2.0 Programming	7	1202	December 2, 2023
ESP32 and OneWire.h 3rd Party Boards	9	4461	July 27, 2022

OneWire Library + ESP32

Related topics