Open themuck opened 2 years ago
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Hey, sure i tested the stuff with some parallel resistors. and it works only with 1k parallel -> ~830ohm. And i use 3.3V Power.
But i have no issues with an ESP32 Device and #include
Go down to 830ohm is in my opinion to low, in case of the 4mA drive current. And with another piece of software it works. We talk about 10m with one sensor! Not 100m or more ;), so i think there is something wrong in the 1-Wire implementation. Or it can be much better!
Hey, i try to use the dragino lsn50 with a DS18B20 and a ~10m J-Y(ST)Y cable. But it looks like there are timing issues in the software with a higher cable capacity? So with the cable extension the lsn50 do not detect the DS18B20... but 1-wire can go ub to 100m
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/148.html https://www.maximintegrated.com/en/design/technical-documents/app-notes/1/126.html