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extra tip about changing I2C address
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2bndy5 committed Mar 29, 2020
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4 changes: 3 additions & 1 deletion README.rst
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Expand Up @@ -43,7 +43,9 @@ Supported Features
.. tip:: The SPI protocol is the preferred method for interfacing with more than 1 Cirque circle
trackpad from the same MCU (microcontroller). The Cirque Pinnacle does not allow
changing the I2C slave device address (via software); this means only 1 Cirque circle trackpad
can be accessed over the I2C bus in the lifecycle of an application.
can be accessed over the I2C bus in the lifecycle of an application. That said, you could change
the I2C address from ``0x2A`` to ``0x2C`` by soldering a 470K ohm resistor at the junction
labeled "ADR" (see picture in `Pinout`_ section), although this is untested.

Unsupported Features
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