User manual

BOARD LAYOUT
POWER SUPPLY CIRCUIT
PIC-WEB can take power from two sources:
- PWR_JACK where (9-12) VDC is applied by external power source.
- EXT-20 pin VIN with the same voltage range.
The board power consumption is: about 130 mA with all peripherals and MCU running at
full speed.
RESET CIRCUIT
PIC-WEB reset circuit is made with R8 (10k) pull-up, R7 (330R) serial resistor and RST
button.
Although on the schematic is made provision for external reset through EXT-16 pin. Manual
reset is possible by the RST button.
CLOCK CIRCUIT
Quartz crystal 25 MHz is connected to PIC18F67J60 clock in and clock out.
Quartz crystal 32.768 KHz is connected to PIC18F67J60 T1OSO and T1OSI pins for it’s
internal Real Time Clock.
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