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IIC LCD Backpack
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Price: $15.59
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DFRobot Item #: DFR0175 -

This is a new IIC LCD backpack which supports Gadgeteer interface (IDC10). It allows gadgeteer user to play with LCD160X. The IIC LCD Backpack is a small PCB that can be soldered to the back of an LCD so that you may control it over an I2C bus.The I2C Backpack is based on the PCA8574.By using this product you could reduced the number of pins (only 2 pins are needed for i2c) while still making it easy to interface with the LCDs. It's compatible with several kinds of LCDs, such as...

SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)
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Price: $17.65
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Sparkfun Item #: BOB-14685 -

"Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus! The Qwiic Mux Breakout enables communication with multiple I2C devices that have the same address that makes it simple to interface with. The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C,...