Onewire HTCC-AB01 / 02

#1

Hello,
i have an AB01 board working with a DS18B20 but i can’t get it working on a AB02.
Using the same sketch and the same pins.
Anyone had issues with with the new AB02 and onewire ?

#2

Ok seems to be an issue with the board soldert the sensor on an other AB02 and there it is working fine without issues.

#3

Yes, the 6502 and 6501 have a same core, the same code should work on both board.

Just need be careful about the pin, the 6502 series have some different pin definition with 6501

#4

Yes it worked fine without any issues after i replaced the 6501 with another one i ordered it was just a dead board

#5

Ouch… very sorry about that. Maybe the pin is virtual welding.

#6

Would you mind sharing how you wired up the DS18B20 please?

Do you need an external resistor?

#7

Yes i used a external resistor.

FP8600RIFMRO359.LARGE.jpg934×352 40.2 KB
The wirering is link how its done int this example i found here https://create.arduino.cc/projecthub/TheGadgetBoy/ds18b20-digital-temperature-sensor-and-arduino-9cc806

#8

Thanks, was hoping to avoid another resistor by using an internal pullup