JST pin 43 not useable with Dallas DS18B20 sensor

[teastainGit]

I am trying to connect a Dallas Semiconductor DS18B20 temperature sensor to either the GPIO43 or the JST pin 43, which are probably the same circuit. Using Arduino v2.1.0. There is no response from the sensor at all, the oscilloscope shows 3.3v steady. The sensor works on GPIO 1 (or GPIO 18, e.g.). The pin 43 can be programmed as an input or an output successfully, but not the serial serial I/O of the DS18B20. Further another user says that the JST pin 43 works in ESPHome, but I cannot get it to work on Arduino. His application of the LilyGO T-Display S3 is to use DS18B20 on pin 43 of the JST for compact packaging, I suppose. He may have to resort to ESPHome, but would rather use Arduino! I cannot understand why it works in only one software. My question therefore is: "Is there a configuration setup for the LilyGO T-Display S3 that configures GPIO43 for I2C only? How can we free it up?" Thanks, Terry

[lewisxhe]

T display s3 io43, io44 is directly connected to esp32s3, there is no additional circuit, I also encountered the same problem with ds18b20 before, I did not go into it. I suggest to open an issue in arduino-esp32

[patofoto]

@lewisxhe Apologies but not sure I understand your response. Did you get it to work?.

[lewisxhe]

I didn't solve it, I didn't get to the bottom of why, I think it's the internal reason of esp32s3@patofoto

[github-actions[bot]]

This issue is stale because it has been open for 30 days with no activity.

[github-actions[bot]]

This issue was closed because it has been inactive for 14 days since being marked as stale.