Summary of PIC16F84A PROGRAMMABLE DUAL TIMER CIRCUIT
This article describes a programmable dual timer circuit using the PIC16F84A microcontroller, featuring a buzzer, voice warning unit, and control relay outputs powered by 12V DC. The system utilizes a 7805 voltage regulator to step down the supply voltage. Users can configure timing settings for seconds and minutes via assembly code modifications.
Parts used in the Programmable Dual Timer Circuit:
- PIC16F84A Microcontroller
- 7805 Regulator Integrated Circuit
- Buzzer with Voice Warning Unit
- Control Relay Outputs
- 12 Volts DC Supply Voltage Source
- Programmable Timer Circuit PCB
- Assembly Code (ASM)
The timer circuit buzzer with voice warning unit and timing after the control relay outputs for there supply voltage of 12 volts DC. PIC16F84A 7805 Regulator Integrated supplied through the second and minute settings can be made probably the … Electronics Projects, PIC16F84A Programmable Dual Timer Circuit ” microchip projects, microcontroller projects, pic16f84 projects,
The timer circuit buzzer with voice warning unit and timing after the control relay outputs for there supply voltage of 12 volts DC. PIC16F84A 7805 Regulator Integrated supplied through the second and minute settings can be made probably the specified period asm code changed through time for a timer b selection can be made.
PIC16F84A TIMER CIRCUIT
Source: http://www.siliconchip.com.au/cms/A_105013/article.html
Programmable Timer Circuit PCB schematic PIC16F84A pic assembly source code alternative link:
FILE DOWNLOAD LINK LIST ( in TXT format ): LINKS-2581.zip
Source: PIC16F84A PROGRAMMABLE DUAL TIMER CIRCUIT
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What is the supply voltage for this timer circuit?
The circuit operates with a supply voltage of 12 volts DC. -
Which microcontroller is used in this project?
The PIC16F84A microcontroller is utilized for the programmable dual timer circuit. -
How are the second and minute settings made?
The settings can be configured through the specified period asm code changes. -
Does the circuit include a voice warning feature?
Yes, the circuit includes a buzzer with a voice warning unit. -
What component regulates the voltage in the circuit?
A 7805 Regulator Integrated circuit is supplied to manage the power. -
Can the timer selection be changed?
Yes, a timer b selection can be made by changing the code. -
Are there control outputs available in this design?
The circuit provides timing after the control relay outputs.

