User manual

Hardware

3.4 USER INTERFACE HARDWARE

The dsPICDEM MCSM Development Board consists of the following push buttons,

LEDs and potentiometers:

• One push button

• One potentiometer

• Eight PWM LEDs

• One power-on status LED

• Two USB LEDs

• One Fault LED

• Device Reset push button

TABLE 3-7: INDICATORS AND HUMAN INTERFACES

Label Hardware Element Description

S1 Push button; this push button is connected to a port pin. When momentarily

pressed, the switch connects the respective port pin to Ground.

POT1 10 kΩ potentiometer; it is connected to analog input pin.

RESET Push button; this push button, when pressed, causes a device Reset.

D1 USB communication indicator, which indicates the device has been detected.

D2 USB bus indicator, which indicates that the device is connected to the USB bus.

D3-D10 LEDs, which indicate the PWM pin status. When an LED is ON, the respective

PWM pin is high.

D14 Power-on status LED, which indicates the status of the

+3.3V regulator.

D15 Fault LED; indicates an overcurrent.