Pic 16f676 Microcontroller Voltmeter

in this article I will discuss the Pic 16f676 Microcontroller Voltmeter and pic16f676 programming . In the previous article I have discussed the interface of Ultrasonic sensor and the Raspberry Pi using the Python language. So this post will be oriented around how to use Pic 16f676 Microcontroller as a Voltmeter and understanding about Pic Microcontroller  programming

Pic 16f676 Microcontroller Voltmeter:

 

 

After reading this post you will be able to understand the basics of the circuit Pic 16f676 Microcontroller Voltmeter and also you will learn about the important  c code  for pic voltmeter 7 segment  So sit back keep reading and enjoy learning.

Equipment Required of project :

we are using these components

• common andoe 7segment displsy
• pic microcontroller 16f676
• 14 pin base
• resistor 10k,10k veriable resistors
• 7805 for voltage regulator
• 100uf .01uf capcitor
• led
• diode
• pic kit 2 for programming

here is the code of reading  adc in c language and it is compile in pic ccs c compiler

SET_ADC_CHANNEL(3); // for(i=0;i<2;i++) // { // delay_ms(1); mux(); mux();mux();mux(); mux();mux(); result=read_adc(); //} val2=result; // value = (int8) (read_adc() * 500)/1023; //val2 = read_adc (); value = (val2* 5000)/1023;

pic voltmeter 7 segment:

3 digit 7 segment with pic 16f676 microcontroller. this is a very simple pic microcontroller voltmeter using 7 segment it can measure up to 99.9 voltage

here is the circuit of 7 segment voltmeter

pic16f676 voltmeter code:

in this code we are using pic ccs c compiler and read analog signal  and convert in to digital

here is the full code of pic16f676 voltmeter

#include <16f676.h>
#FUSES NOWDT                    //No Watch Dog Timer
#FUSES INTRC                 //Internal RC Osc, no CLKOUT
#FUSES NOMCLR                   //Master Clear pin used for I/O
#FUSES NOBROWNOUT               //No brownout reset
#FUSES PUT
#device ADC=10
#use delay(INT=4Mhz)
#define aon    output_LOW(PIN_C0);
#define aof    output_HIGH (PIN_C0);
#define bon    output_LOW(PIN_C1);
#define bof    output_HIGH (PIN_C1);
#define con    output_LOW(PIN_C2);
#define cof    output_HIGH (PIN_C2);
#define don    output_LOW(PIN_C3);
#define dof    output_HIGH (PIN_C3);
#define eon    output_LOW(PIN_C4);
#define eof    output_HIGH (PIN_C4);
#define fon    output_LOW(PIN_C5);
#define fof    output_HIGH (PIN_C5);
#define gon    output_LOW(PIN_A2);
#define gof    output_HIGH (PIN_A2);
#define d1_of    output_LOW(PIN_A1);
#define d1_on    output_HIGH (PIN_A1);
#define d2_of    output_LOW(PIN_A0);
#define d2_on    output_HIGH (PIN_A0);
#define d3_of    output_LOW(PIN_A5);
#define d3_on    output_HIGH (PIN_A5);
int32  value=0,val2,ind=0,ind2=0,cnt5=0,d1;
void off();
int thu,ten,unit,digit;
void zero(){
 aon;
 bon;
 con;
 don;
 eon;
 fon;
 gof;
}
void one(){
 aof;
 bon;
 con;
 dof;
 eof;
 fof;
 gof;
}

void two(){
 aon;
 bon;
 cof;
 don;
 eon;
 fof;
 gon;
}
void three(){
 aon;
 bon;
 con;
 don;
 eof;
 fof;
 gon;
}
void four(){
 aof;
 bon;
 con;
 dof;
 eof;
 fon;
 gon;
}
void five(){
 aon;
 bof;
 con;
 don;
 eof;
 fon;
 gon;
}

void six(){
 aon;
 bof;
 con;
 don;
 eon;
 fon;
 gon;
}
void seven(){
 aon;
 bon;
 con;
 dof;
 eof;
 fof;
 gof;
}
void eight(){
 aon;
 bon;
 con;
 don;
 eon;
 fon;
 gon;
}

void nine(){
 aon;
 bon;
 con;
 don;
 eof;
 fon;
 gon;
}
void comp1(){
if(digit==0)zero();
if(digit==1)one();
if(digit==2)two();
if(digit==3)three();
if(digit==4)four();
if(digit==5)five();
if(digit==6)six();
if(digit==7)seven();
if(digit==8)eight();
if(digit==9)nine();
 DELAY_MS(1);}
void mux(){
d1_on;digit=thu;comp1();d1_of;
d2_on;digit=ten;comp1();d2_of;
d3_on;digit=unit;comp1();d3_of;
//d3_on;digit=unit;comp1();d3_of;}
void mdelay()
{
mux();mux();//mux();mux();
mux();mux();mux();mux();
mux();mux();mux();mux();
mux();mux();mux();mux();
mux();mux();mux();mux();
mux();mux();mux();mux();
//mux();mux();mux();mux();
//mux();mux();mux();mux();
}
void getad(){
      int32   result=0;int8 i;
     SET_ADC_CHANNEL(3);
//       for(i=0;i<2;i++)
 //  {
  //   delay_ms(1);
 mux(); mux();mux();mux(); mux();mux();
 result=read_adc();
//}
   val2=result;
  //   value = (int8) (read_adc() * 500)/1023;
//val2 = read_adc ();
  value =   (val2* 5000)/1023;
 thu = (value/1000); mux(); mux();mux();mux(); mux();mux();
 ten = (value/100)%10; mux(); mux();mux();mux(); mux();mux();
 unit = (value/10)%10; mux(); mux();mux();mux(); mux();mux();
/*
putc(thu+48);
putc(ten+48);
putc(unit+48);
 unit = value%10;
putc(unit+48);
putc(10);putc(13);
*/
 }
void main ()
{ DELAY_MS(1);
/*
 //SETUP_ADC_PORTS(NO_ANALOGS);
//   set_tris_a(0);
   set_tris_c(0x00);
   setup_comparator(NC_NC_NC_NC);
   setup_adc_ports(sAN0 | VSS_VDD);
   setup_adc(ADC_CLOCK_INTERNAL);
setup_adc(ADC_CLOCK_INTERNAL );
set_tris_c(0x00);     set_tris_a(0xff);
     set_tris_a(0b00011001);
       setup_comparator(NC_NC_NC_NC);   // not use comparator module
   setup_adc_ports( sAN3 | VSS_VDD); 
   setup_adc(ADC_CLOCK_DIV_64);
     set_tris_a(0b00011001);
zero();//DELAY_MS(1000);
while(1)
 {
// DELAY_MS(10);
//pwmd();
getad();
mdelay();
}}

digital voltmeter using microcontroller:

you can download pic16f676 voltmeter hex file and source code below link

Pic16f676 Pinout

Here is the pinout of pic16f676 microcontroller

 

pic16f676 example c code:

pic16f676 is a 8 bit microcontroller and it has 14 pins.

List of Pic16f676 Microcontroller Projects

here is the best and easy pic microcontroller projects

 

1. Frequency Counter using Pic 16f676
2. ac/dc voltmeter using pic microcontroller
3. digital free fall
4. timer circuit
5. traffic signal
6. mark space timer
7. fridge timer
8. 50hz comparator
9. automatic battery monitor circuit
10. stablizer timer and circuit
11. multi steps battery charger circuit
12. digital stop watch
13. solar energy measurement
14. ac dimmer using pic microcontroller
15. ir remote control devices
16. home automation using pic16f676
17. digital clock
18. lcd alarm clock
19. temperature control +timer
20. home automation with bluetooth hc04
21. sonar sensor hcsr04 interfacing
22. pir light on/off circuit

 

Pic16f676 Frequiency Counter

 

 

 

Solar Energy Measurement Using Pic Microcontroller

here is the circuit of solar energy meter or Solar Energy Measurement Using Pic Microcontroller

 

it can measure

1. Solar Voltage
2. Battery Voltage
3. Solar Current
4. Solar Power

temperature controller ds18b20 using pic16f676 microcontroller

 

stepper motor control using pic

wapda ups voltage display

 

 

DOTMATRIX display pic microcontroller

DOTMATRIX display pic microcontroller

 

all

for more Engineering Projects click below link

Engineering Projects

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