20
4.10.
Potentiometers
Figure 17
– POT1 and POT2 Potentiometers
POT1 and POT2 are high precision, 10-turn potentiometers with knob. They are
respectively wired to the A2 and A3 12-bit ADC inputs of the MSP430.
Notice: The signals of the potentiometers are inverted. The position 0.0 corresponds to
the highest signal in ADC acquisition and 10.0 to the smallest value.
4.11.
LEDs
Four general purpose LEDs are available on the UEPM Development Board. They can
be used to display basic information. They are called LED1, LED2, LED3 and LED4 and
their signals are of the same names on t
he circuit’s schematics. They are directly
connected to the MSP430 digital outputs and they use 220 Ohm resistors to limit
current.
