Thanks for the offer but I have to decline.I just had a thought, it takes me a while sometimes. I could send you the displays and a PIC16F819, they could probably be with you by next weekend if you want.
;#DEFINE COMMONCATHODE
IFDEF COMMONCATHODE
;table is at start to avoid page crossing
bcdto7seg ;bit 2 not used here (decimal point)
addwf PCL, F ; Jump into the lookup table
retlw B'11101011' ; Return segment code for 0
retlw B'00100001' ; Return segment code for 1
retlw B'10111010' ; Return segment code for 2
retlw B'10110011' ; Return segment code for 3
retlw B'01110001' ; Return segment code for 4
retlw B'11010011' ; Return segment code for 5
retlw B'11011011' ; Return segment code for 6
retlw B'10100001' ; Return segment code for 7
retlw B'11111011' ; Return segment code for 8
retlw B'11110011' ; Return segment code for 9
return
ELSE
bcdto7seg ;bit 2 not used here (decimal point)
addwf PCL, F ; Jump into the lookup table
retlw B'00010100' ; Return segment code for 0
retlw B'11011110' ; Return segment code for 1
retlw B'01000101' ; Return segment code for 2
retlw B'01001100' ; Return segment code for 3
retlw B'10001110' ; Return segment code for 4
retlw B'00101100' ; Return segment code for 5
retlw B'00100100' ; Return segment code for 6
retlw B'01011110' ; Return segment code for 7
retlw B'00000100' ; Return segment code for 8
retlw B'00001100' ; Return segment code for 9
return
ENDIF
Yup.I presume the second digit decimal point just connects through a resistor to ground on the other board.
You must also take into consideration the RA0 input impedance. And as Mark said resistors are never spot on. Ad a port for fine tuningYup.
Like to ask you how would be the RA0 input Voltage dividers that U used
What I found is attached.
Vout = (R2 / R1+R2) * Vin.
Will this method be fine.
I suspect he only wants one, which is why people DIY PCBs. Shipping to the Maldives is a lot more expensive than you credit, ask him how much 2 rolls of wax paper (worth $3.60) cost in import fees, not to mention shipping.Are you etching the boards yourself?
Honestly I'd recommend getting PCBs made, you have so much more freedom. Seeed Studio do 5cmx5cm PCBs for $10 (a quantity of 10 are made for this price), plus $5 shipping, or $1.50 each. I use these guys often and can recommend them.
Yeah, that's the only disadvantage. Also, customs seems to take 2 weeks, plus the 1 week lead time for making the PCBs, that means it's 3 weeks+ to get your boards.I suspect he only wants one, which is why people DIY PCBs. Shipping to the Maldives is a lot more expensive than you credit, ask him how much 2 rolls of wax paper (worth $3.60) cost in import fees, not to mention shipping.
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