Comments on: Interfacing Relay with PIC Microcontroller

By: Ligo George

Ligo George — Sun, 16 Feb 2020 06:40:52 +0000

In reply to Subash. Use 8MHz, provide same in MikroC Project settings.

By: Subash

Subash — Thu, 30 Jan 2020 09:16:06 +0000

CRYSTAL OSCILLATOR range

By: Muhammad Amjad

Muhammad Amjad — Fri, 25 Jan 2019 21:04:28 +0000

HI,
i am facing a problem in my circuit , i am using controlling star delta motors with the 16f887 control 12v relays depending in inputs and other things ;i think there is no problem in this part

the 220 v contactors is taking supply from relays lay in the same pcb .
, i test circuit without connecting the 220 v it works nice and makes no problem …

but when connecting to the contators ; some times when contactors on or off it is going to reset any idea will be good

By: yogesh

yogesh — Mon, 02 Oct 2017 07:33:00 +0000

hi,
here also same 1000msec delay, practically relay is taking 3sec to turn ON

By: John Kaup

John Kaup — Mon, 03 Apr 2017 20:56:00 +0000

In reply to Ligo George. I want to make a circuit using a pic micrcontroller that has a start button. When it is pressed, a relay is activated until a sensor is activated, then it switches off. Another relay is then activated. Can this be done?

By: ASAINAR

ASAINAR — Thu, 16 Mar 2017 21:15:00 +0000

i need a xc8 programm for pic16f877a , low voltage and over voltage protection circuit for my project, using pins RA0 -RA5, ok

By: Ligo George

Ligo George — Sat, 21 Nov 2015 07:43:00 +0000

In reply to tiago pereira. You can use 8MHz crystal.

By: tiago pereira

tiago pereira — Fri, 09 Oct 2015 12:52:00 +0000

what’s crystal and microcontroller frequency?

By: Ligo George

Ligo George — Sat, 03 Oct 2015 09:49:00 +0000

In reply to Nurul Asshikin. Yes, you can change it. But you have to make necessary changes in the program.

By: Nurul Asshikin

Nurul Asshikin — Tue, 08 Sep 2015 16:22:00 +0000

hi ligo ! i want ask if i can change the pic 16f877a into pic 18f4550?