Surviving 1 second without battery power

[Acetronics2]

Hi, Peu

You're out ...

'@ device pic12f683,INTRC_OSC_NOCLKOUT , wdt_on, mclr_off, protect_off, bod_on

 @    __config _INTRC_OSC_NOCLKOUT & _PWRTE_ON & _WDT_ON &_BOD_ON & _MCLRE_OFF & _CP_OFF
 
 
OSCCON = %01100110
CMCON0 = %00000111     ' Disable comparator
VRCON  = %00000000     ' disable
ADCON0 = %11100000
ANSEL  = %10000000

'       I/Os
gpio   = %00000000
TRISIO = %00000000      ' no inputs 

BOD var GPIO.0
POR var GPIO.1

   
IF PCON.1 = 0 and PCON.0 = 0 THEN BOD = 1	'BROWN OUT RESET BIT
IF PCON.1 = 0 				 THEN POR = 1	'POWER ON RESET BIT

PAUSE 1000

GPIO = 0

if PCON.1 = 1 AND PCON.0 = 0 then		'PCON.0 = BOD ;PCON.1 = POR
          
    GPIO.2 = 1         'GPIO.1 red led PIN6 shows a BOD state
    PAUSE 5000
    PCON.0 = 1
    gpio = %00000000
    
endif

PCON.1 = 1
PCON.0 = 1

While 1
Wend

END

This works really fine, but with a 10 µ (MICRO) F ...and a 12F683

so , some current draw improvements are still to add ...

NOTE: All Outputs are Mosfet Buffered ( BS 170 ) ...

Alain

PS: You didn't use your brain too much, here ....