● To handle multiple devices, each slave device on the same bus (sharing the same SDA and SCL signals) must have an individual address.
● The standard I2C protocol uses 7-bit slave addresses, meaning there can be up to 2 7 = 128 devices on a single bus.
● There are 16 addresses reserved for special purposes, so that leaves room for 112 general I2C devices per bus.
● A device's address is programmed into it by its manufacturer, and there is no guarantee that any two devices won't have the same address, so in practice, the upper limit would likely be less than 112.
● To handle multiple devices, each slave device on the same bus (sharing the same SDA and SCL signals) must have an individual address.● The standard I2C protocol uses 7-bit slave addresses, meaning there can be up to 2 7 = 128 devices on a single bus.● There are 16 addresses reserved for special purposes, so that leaves room for 112 general I2C devices per bus.● A device's address is programmed into it by its manufacturer, and there is no guarantee that any two devices won't have the same address, so in practice, the upper limit would likely be less than 112.
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