AN3280

Application description

Doc ID 17983 Rev 1

5/13

1

Application description

1.1

Hardware requirements

No on-board resources are used.

External resources needed are:

●

4 LEDs: LD2, LD3, LD4, LD5

●

1 x 10 K

Ω variable resistor: RV1

●

4 x 1 K

Ω resistors: R1, R2, R3, R4

●

1 x 100 nF capacitor: C1

1.2

Application schematic

Capacitor C1 filters the voltage spike on PE6.

Resistors R1, R2, R3 and R4 limit the current going into LD2, LD3, LD4 and LD5

respectively.

Figure 1.

Application schematic

C1