AMICUS18-COMPANION-SHIELD AMICUS, AMICUS18-COMPANION-SHIELD Datasheet - Page 15

• Manufacturer Part Number: AMICUS18-COMPANION-SHIELD
• Description: Amicus18 Companion Shield
• Manufacturer: AMICUS

Specifications of AMICUS18-COMPANION-SHIELD

• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Features: USB Interface, In Circuit Serial Programming Interface
• Kit Contents: Board
• Silicon Family Name: PIC
• Silicon Core Number: PIC18F25K20
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: PIC18F25K20 Microcontroller

The two extra LEDs are connected to RB0 and RB1 of PortB, as the circuit shows below:
A suitable program for the 4 LED sequencer is shown below:
' Illuminate 4 LEDs attached to PortB in sequence
' Make sure the Amicus18 board’s jumper Q3 is set to the RB1 position
'
The above program will illuminate each LED in turn.
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Low
While 1 = 1
Wend
PORTB
DelayMS 300
PORTB
DelayMS 300
PORTB
DelayMS 300
PORTB
DelayMS 300
PORTB
= %00000001
= %00000010
= %00000100
= %00001000
Amicus18 Companion Shield
Version 1.0
' Make PortB output low (Extinguish all four LEDs)
' Create an infinite loop
' Illuminate the first LED
' Delay a pre-determined amount of time
' Illuminate the second LED
' Delay a pre-determined amount of time
' Illuminate the third LED
' Delay a pre-determined amount of time
' Illuminate the fourth LED
' Delay a pre-determined amount of time
' Do it forever
PortB
Power
GND
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
Cathode
Anode
47
LED
Ω
14
47
LED
Ω
47
LED
Ω
47
LED
Ω
06-10-2009