Rev 1.0
21
7
Multi Purpose Pins
7.1
MPP1
The MFD15 Gen2 has two multi-purpose pins.
MPP1
(pin C1) is a frequency/switched input and
MPP2
(pin C11) is a switching output.
Frequency signals such as ethanol content or turbocharger speed can be connected to
MPP1
and
require an additional license. When wiring an ethanol sensor, a 10k pullup resistor between 5V and
the signal line is required.
You can choose to set this pin to dim the display. Wire your +12V light switch to the pin, and the
display dims as soon as +12V is feed in to the pin.
7.2
MPP2
MPP2
can be used to switch an output such as N75 clocking or water-methanol injection.
The activation of these functions takes place via paid licenses.
