Hi, we’ve purchased two AK-DS2482S modules and are having difficulty getting them to work with all of our sensors.
We have 7 DS18B20 sensors buried in the concrete floor of our new house. The lengths of the sensor wires range between 6m and 30m. Initially we connected them directly to a Raspberry Pi 3B using the 1-wire interface but found that we could only connect 3 at once; when we connected more than 3, all the sensors disappeared. We also connected them one at a time to check that they all worked, and they do.
Researching the problem suggested that the lengths of the wires could be the problem, and various links led to your AK-DS2482S-100 board, so we bought a couple. However, we are still finding that we cannot get more than 3 connected and working.
We have connected all the solder jumpers on the board, including SPU. We have both I2C and 1-Wire enabled on the Pi.
Please can you help?