Theoretically, up to 256 devices can be connected to a single 1-Wire bus, but in practice, the maximum number is limited by the bus capacitance, wire length, and noise tolerance. A typical limit is around 10-20 devices.
To ensure reliable communication over long 1-Wire bus lengths, use a strong pull-up resistor (e.g., 1 kΩ), keep the bus capacitance low, and use a repeater or a buffer to amplify the signal. Additionally, use a shielded cable and keep the bus away from noise sources.
The VPP (Programming Voltage) pin is used to program the device's EPROM memory. It is not required for normal operation and can be left unconnected if programming is not needed.
No, the DS1210S requires a microcontroller or a dedicated 1-Wire master device to communicate with it and retrieve temperature data. It cannot operate as a standalone temperature sensor.
The DS1210S can be read as often as every 750 ms, but it's recommended to wait at least 1-2 seconds between readings to allow the device to settle and ensure accurate temperature measurements.
