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I have a project that is using almost all of the GPIO available on the pi B+ so I have chosen to use GPIO 2 and 3 (pins 3 & 5) to drive relays. These pins also act as SDA and SCL. Using RPi.GPIO I cannot get these two GPIOs to go low. Is there another package that woul work or a configuration somewhere? I have blacklisted the I2C drivers.

SpaceCase
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  • You may have to change [device tree configuration](https://www.raspberrypi.org/documentation/configuration/pin-configuration.md) – J.J. Hakala Apr 12 '16 at 15:31
  • You could get an MCP23017 i2c GPIO expander and connect it to the two remaining GPIOs to get 16 extra pins. – jDo Apr 20 '16 at 16:16

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