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How many devices can be connected to one wire bus and how many temperature sensors(DS18B20) can be connected to Raspberry Pi 3b+?
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- The DS18B20 is a one-wire device. IIRC one-wire is not really a bus, but rather a point-to-point connection. Therefore you can theoretically connect as many as you have GPIO pins (28 on the Pi3b) – PMF 12 hours ago
- You can connect at least 20, and if you use buffers, 30 or more: (1) raspberrypi.stackexchange.com/questions/98394/… (2) raspberrypi.stackexchange.com/questions/100203/… (3) raspberrypi.stackexchange.com/questions/111412/… – tlfong01 1 min ago Edit