How to connect ADC0808 with PIC16F84A ?

hello there.. can anyone help me on how to connect ADC0808 with PIC16F84A?. i would also like to interface it with a QTR-1A reflectance sensor. pls help me. thanks

Re: Adc0808 to PIC16F84A

Dear friend,

Please read PIC data sheet.Also look MikroC library for ADC.

Re: Adc0808 to PIC16F84A

@ansarmytheen,
If you check the datasheet of 16F84A, you will see that there is NO ADC. bogusmeister is asking for interfacing the 16F84A with an external ADC, namely ADC0808.
@bogusmeister,
I haven't used external ADCs, so don't know much about them, but this site should provide plenty of information:
**broken link removed**

However, I would say that it wouldn't be feasible as a lot of the pins would be required (8 data lines + more pins for setting), so not much useful stuff can be done. I would suggest using a PIC that has internal ADC. This would also make the circuit less complex since you would not required that additional ADC0808. Check 16F88 as it has equivalent pinout as 16F84A with 7 ADC inputs. Or more modern 18F series. If you go up the pin count, a PIC with 40 pins has more ADC inputs available, eg. 16F877A has 8, 16F887 has 14.

Hope this helps.
Tahmid.

Re: Adc0808 to PIC16F84A

Dear Tahmid,

thank you.

Re: Adc0808 to PIC16F84A

oh thanks. yeah, i've decided to use PIC16F877..

Re: Adc0808 to PIC16F84A

Why you are not using PIC16f876A which is 20pin mcu with inbuilt ADC..chears.

Re: Adc0808 to PIC16F84A

sam185 said:

Why you are not using PIC16f876A which is 20pin mcu with inbuilt ADC..chears.

Click to expand...

i have that also on my choices. but its not available in my place. thanks

Re: Adc0808 to PIC16F84A

Hi, I don't know about 16F876, but bogusmeister, you should check out 16F873A. That's same as 16F876 as lower memory. That shouldn't cause a problem. I think you can find it in your area.

Hope this helps.
Tahmid.