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    PIC16F877A PIN DIAGRAM Search Results

    PIC16F877A PIN DIAGRAM Result Highlights (6)

    Part ECAD Model Manufacturer Description Download Buy
    CS-DSDMDB09MF-010 Amphenol Cables on Demand Amphenol CS-DSDMDB09MF-010 9-Pin (DB9) Deluxe D-Sub Cable - Copper Shielded - Male / Female 10ft Datasheet
    CS-DSDMDB15MF-002.5 Amphenol Cables on Demand Amphenol CS-DSDMDB15MF-002.5 15-Pin (DB15) Deluxe D-Sub Cable - Copper Shielded - Male / Female 2.5ft Datasheet
    CS-DSDMDB15MM-025 Amphenol Cables on Demand Amphenol CS-DSDMDB15MM-025 15-Pin (DB15) Deluxe D-Sub Cable - Copper Shielded - Male / Male 25ft Datasheet
    CS-DSDMDB25MM-010 Amphenol Cables on Demand Amphenol CS-DSDMDB25MM-010 25-Pin (DB25) Deluxe D-Sub Cable - Copper Shielded - Male / Male 10ft Datasheet
    CS-DSDMDB37MM-002.5 Amphenol Cables on Demand Amphenol CS-DSDMDB37MM-002.5 37-Pin (DB37) Deluxe D-Sub Cable - Copper Shielded - Male / Male 2.5ft Datasheet
    CS-DSDMDB50MF-025 Amphenol Cables on Demand Amphenol CS-DSDMDB50MF-025 50-Pin (DB50) Deluxe D-Sub Cable - Copper Shielded - Male / Female 25ft Datasheet

    PIC16F877A PIN DIAGRAM Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    PIC16F877A pin

    Abstract: PIC16F877A Microcontroller PIC16F877A SPECIFICATIONS PIC16F877A PIN diagram PIC16F877A block diagram PWM using PIC16F877a c code PWM Inverter using PIC Microcontroller control dc motor speed using Pic16F877A PIC16F877A circuit diagram PIC16F877A connect to 16 pin LCD
    Text: MINI-MAX/PIC Single Board Computer Technical Manual Document Revision: 1.03 Date: 06 September 2004 BiPOM Electronics, Inc. 16301 Blue Ridge Road, Missouri City, Texas 77489 Telephone: 1-713-283-9970 Fax: 1-281-416-2806 E-mail: info@bipom.com Web: www.bipom.com


    Original     		PDF com/files/mm51c/loader/WinLoad MCP100 PIC16C58 PIC16F877A RS-232 PIC16F877A pin PIC16F877A Microcontroller PIC16F877A SPECIFICATIONS PIC16F877A PIN diagram PIC16F877A block diagram PWM using PIC16F877a c code PWM Inverter using PIC Microcontroller control dc motor speed using Pic16F877A PIC16F877A circuit diagram PIC16F877A connect to 16 pin LCD

    vending machine pic microcontroller

    Abstract: PIC16F877a SAMPLE C ir sensor counter program pic16f877a projects PIC16F877A connect to 16 pin LCD EMBEDDED C BOOKS IN PIC16F877A PIC16F877A pic16f877a manual vending machine schematic diagram PIC16F877a Programmer circuit diagram Projects and Circuits for Data Logger
    Text: MCP215X/40 Data Logger Demo Board User’s Guide 2006 Microchip Technology Inc. DS51516B Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet.


    Original     		PDF MCP215X/40 DS51516B DS51516B-page vending machine pic microcontroller PIC16F877a SAMPLE C ir sensor counter program pic16f877a projects PIC16F877A connect to 16 pin LCD EMBEDDED C BOOKS IN PIC16F877A PIC16F877A pic16f877a manual vending machine schematic diagram PIC16F877a Programmer circuit diagram Projects and Circuits for Data Logger

    free pic16f877a

    Abstract: PIC16F877A PIN diagram PIC16F877A block diagram PIC16F877A pin pic16f877a c code programming example PIC16F877 interrupt PIC16F877A SPECIFICATIONS DS00578 REGISTERS IN PIC16F877A PIC16F877A PIN DIAGRAM DETAILS
    Text: M AN245 Interfacing The MCP23016 I/O Expander With The PIC16F877A What can you do with an I/O Expander? Abdelwahab Fassi-Fihri Microchip Technology Inc. INTRODUCTION This application note describes how to use a PIC16F877A as an I2C master to communicate with


    Original     		PDF AN245 MCP23016 PIC16F877A PIC16F877A MCP23016) D-85737 DS00245A-page free pic16f877a PIC16F877A PIN diagram PIC16F877A block diagram PIC16F877A pin pic16f877a c code programming example PIC16F877 interrupt PIC16F877A SPECIFICATIONS DS00578 REGISTERS IN PIC16F877A PIC16F877A PIN DIAGRAM DETAILS

    PIC 877A

    Abstract: PIC16F877A pin PIC16F877A PIN diagram control dc motor speed using Pic16F877A PIC16F877A 40 PIN DIAGRAM DETAILS pic16f877a motor drive source code PIC16F874A icsp PIC16F874A/877A DATASHEET PIC16F877A SPECIFICATIONS PIC16F874A/877A
    Text: PIC16F874A/877A 40-Pin Enhanced FLASH Microcontroller Product Brief High Performance RISC CPU: Pin Diagram: PDIP MCLR/VPP RA0/AN0 1 40 2 3 39 38 4 37 RA3/AN3/VREF+ 5 36 RA4/T0CKI 6 7 35 34 RB2 33 RB0/INT VDD RA1/AN1 RA2/AN2/VREF-/CVREF RA5/AN4/SS RE0/RD/AN5


    Original     		PDF PIC16F874A/877A 40-Pin PIC16CXXX PIC16FXXX D-81739 D-82152 DS30304C-page PIC 877A PIC16F877A pin PIC16F877A PIN diagram control dc motor speed using Pic16F877A PIC16F877A 40 PIN DIAGRAM DETAILS pic16f877a motor drive source code PIC16F874A icsp PIC16F874A/877A DATASHEET PIC16F877A SPECIFICATIONS PIC16F874A/877A

    interfacing of PIC16F877A with 2X16 lcd

    Abstract: P16F877A PIC16F877A 2x16 LCD zero crossing detector PIC dimmer interfacing PIC16F877A with lcd pic microcontroller triac control x10 pic an236 2X16 lcd module pic16f84 PIC16F877A using temperature sensor PIC16F877a instruction clock timing diagram
    Text: AN236 X-10 Home Automation Using the PIC16F877A Author: HARDWARE OVERVIEW Jon Burroughs Microchip Technology Inc. The home controller application described in this application note allows the user to program on and off times for up to sixteen devices, using a 2 x 16 liquid crystal


    Original     		PDF AN236 PIC16F877A D-85737 DS00236A-page interfacing of PIC16F877A with 2X16 lcd P16F877A PIC16F877A 2x16 LCD zero crossing detector PIC dimmer interfacing PIC16F877A with lcd pic microcontroller triac control x10 pic an236 2X16 lcd module pic16f84 PIC16F877A using temperature sensor PIC16F877a instruction clock timing diagram

    free pic16f877a

    Abstract: PWM GENERATION using Pic16F877A PIC16F877A block diagram PWM using PIC16F877a c code PIC16F877A block diagram for digital clock PIC16F877A PIN diagram PWM using PIC16F877a PIC16F877A power on reset circuit diagram PIC16F877a pwm PIC16F877A pin
    Text: AN946 Interfacing the MCP2122 to the Host Controller Author: The 16x clock is used for the baud clock timing transmit and receive . There are 16 16x clocks (16XCLK) for each bit time. In systems that have already been designed with the HSDL-7000, the 16XCLK signal is


    Original     		PDF AN946 MCP2122 16XCLK) HSDL-7000, 16XCLK DK-2750 D-85737 NL-5152 free pic16f877a PWM GENERATION using Pic16F877A PIC16F877A block diagram PWM using PIC16F877a c code PIC16F877A block diagram for digital clock PIC16F877A PIN diagram PWM using PIC16F877a PIC16F877A power on reset circuit diagram PIC16F877a pwm PIC16F877A pin

    PIC Light Dimmer

    Abstract: x10 pic an236 zero crossing detector PIC dimmer TRIAC dimmer pic PIC18F452 PWM example codes interfacing of PIC16F877A with 2X16 lcd pic triac PIC16F877A 2x16 LCD PWM GENERATION using Pic16F877A PIC16F877A circuit diagram
    Text: AN236 X-10 Home Automation Using the PIC16F877A Author: HARDWARE OVERVIEW Jon Burroughs Microchip Technology Inc. The home controller application described in this application note allows the user to program on and off times for up to sixteen devices, using a 2 x 16 liquid crystal


    Original     		PDF AN236 PIC16F877A DS00236B-page PIC Light Dimmer x10 pic an236 zero crossing detector PIC dimmer TRIAC dimmer pic PIC18F452 PWM example codes interfacing of PIC16F877A with 2X16 lcd pic triac PIC16F877A 2x16 LCD PWM GENERATION using Pic16F877A PIC16F877A circuit diagram

    PIC16F877A PIN diagram

    Abstract: PIC16F876A icsp PIC16F87XA pic16f877a c code programming example PIC16F877A pin PIC16F877A flow chart PIC16F877A PIN DIAGRAM DETAILS PIC16F877A block diagram PIC16F877A Microcontroller eeprom PIC16F876A
    Text: PIC16F87XA FLASH Memory Programming Specification • PIC16F876A • PIC16F874A • PIC16F877A 1.0 PROGRAMMING THE PIC16F87XA The PIC16F87XA is programmed using a serial method. The Serial mode will allow the PIC16F87XA to be programmed while in the user’s system. This allows


    Original     		PDF PIC16F87XA PIC16F876A PIC16F874A PIC16F877A PIC16F87XA D-85737 PIC16F877A PIN diagram PIC16F876A icsp pic16f877a c code programming example PIC16F877A pin PIC16F877A flow chart PIC16F877A PIN DIAGRAM DETAILS PIC16F877A block diagram PIC16F877A Microcontroller eeprom PIC16F876A

    pic 873a

    Abstract: PIC16F877A block diagram for digital clock PIC16F877A PIN diagram PIC16F87XA embedded c programming PIC16F877A circuit diagram of counter using pic16f877a PIC16F877A block diagram PIC16F877a instruction clock timing diagram EMBEDDED C programming for PIC16F877A pic16f877a c code programming example
    Text: PIC16F87XA Flash Memory Programming Specification • PIC16F876A • PIC16F874A • PIC16F877A 1.0 PROGRAMMING THE PIC16F87XA The PIC16F87XA is programmed using a serial method. The Serial mode will allow the PIC16F87XA to be programmed while in the user’s system. This allows


    Original     		PDF PIC16F87XA PIC16F876A PIC16F874A PIC16F877A PIC16F87XA DS39589C-page pic 873a PIC16F877A block diagram for digital clock PIC16F877A PIN diagram embedded c programming PIC16F877A circuit diagram of counter using pic16f877a PIC16F877A block diagram PIC16F877a instruction clock timing diagram EMBEDDED C programming for PIC16F877A pic16f877a c code programming example

    PIC16F877A PIN diagram

    Abstract: PIC16F877A flow chart pic16f877a c code programming example PIC16F877A block diagram PIC16F873A block diagram PIC16F876A icsp PIC16F876A PIC16F87XA PIC16F874A pic16f877a motor drive source code
    Text: M PIC16F87XA FLASH Memory Programming Specification • PIC16F876A • PIC16F874A • PIC16F877A 1.0 PROGRAMMING THE PIC16F87XA The PIC16F87XA is programmed using a serial method. The Serial mode will allow the PIC16F87XA to be programmed while in the user’s system. This allows


    Original     		PDF PIC16F87XA PIC16F876A PIC16F874A PIC16F877A PIC16F87XA D-81739 PIC16F877A PIN diagram PIC16F877A flow chart pic16f877a c code programming example PIC16F877A block diagram PIC16F873A block diagram PIC16F876A icsp PIC16F876A PIC16F874A pic16f877a motor drive source code

    PIC16F877a parallel slave port sample code

    Abstract: interfacing PIC16F877A with buffer PIC 877A PIC16F874A/877A DATASHEET PIC 16 F 877A PIC16F877A PIN diagram PIC16f877a example code spi PIC16F877A 40 pin MICROCHIP PIC16F874A/877A port pin details of pic16f877a
    Text: PIC16F87XA PIC16F87XA Rev. B0 Silicon/Data Sheet Errata The PIC16F87XA Rev. B0 parts you have received conform functionally to the Device Data Sheet DS39582A , except for the anomalies described below. This Errata Sheet supersedes any previously published Errata for PIC16F87XA Rev. B0.


    Original     		PDF PIC16F87XA PIC16F87XA DS39582A) 0242xxx) 28-pin PIC16F873A PIC16F876A) PIC16F877a parallel slave port sample code interfacing PIC16F877A with buffer PIC 877A PIC16F874A/877A DATASHEET PIC 16 F 877A PIC16F877A PIN diagram PIC16f877a example code spi PIC16F877A 40 pin MICROCHIP PIC16F874A/877A port pin details of pic16f877a

    16F877A microcontroller interfacing with lcd

    Abstract: schematic diagram receiver data circuit satellite AVR GPS interfacing code in c PIC16F877A assembly programming for rs232 free pic16f877a gps schematic diagram PIC16F877A assembly with lcd Gps circuit diagram PIC16F877A circuit diagram pic16f877a manual
    Text: E-blocks GPS board Document code: EB045-30-1 GPS board datasheet EB045-00-1 Contents 1. 2. 3. 4. 5. About this document . 2


    Original     		PDF EB045-30-1 EB045-00-1 EB045 16F877A microcontroller interfacing with lcd schematic diagram receiver data circuit satellite AVR GPS interfacing code in c PIC16F877A assembly programming for rs232 free pic16f877a gps schematic diagram PIC16F877A assembly with lcd Gps circuit diagram PIC16F877A circuit diagram pic16f877a manual

    PIC16F877A PIN diagram

    Abstract: PIC 877A PIC16F874A/877A PIC16F874A/877A DATASHEET PIC 16 F 877A c programming PIC16F877A circuit diagram PIC16F87XA PIC16f877a example code spi PIC16F877A PIC16F874A
    Text: PIC16F87XA PIC16F87XA Rev. B2 Silicon/Data Sheet Errata The PIC16F87XA Rev. B2 parts you have received conform functionally to the Device Data Sheet DS39582A , except for the anomalies described below. All the problems listed here will be addressed in future


    Original     		PDF PIC16F87XA PIC16F87XA DS39582A) DK-2750 D-85737 DS80133D-page PIC16F877A PIN diagram PIC 877A PIC16F874A/877A PIC16F874A/877A DATASHEET PIC 16 F 877A c programming PIC16F877A circuit diagram PIC16f877a example code spi PIC16F877A PIC16F874A

    interfacing pic16f877a with ir sensors

    Abstract: can bus schematic mcp2551 microchip pic16f877a uart MCP2551 application note can bus schematic mcp2551 example mcp2510 mcp2515 interfacing PIC16F877A with encoder PIC16F877A using temperature sensor pic16f877a based spi MCP2551
    Text: Analog and Interface Product Solutions Interface Products Design Guide Using CAN, LIN and Infrared Connectivity Design ideas in this guide are based on many of the interface devices available from Microchip Technology. A complete device list and corresponding data sheets for these products can be found at www.microchip.com


    Original     		PDF MCP2515 MCP2551 MCP250xx MCP201 MCP23016 PIC12F675 PIC18F6680 MCP2120 MCP2140 MCP215x interfacing pic16f877a with ir sensors can bus schematic mcp2551 microchip pic16f877a uart MCP2551 application note can bus schematic mcp2551 example mcp2510 mcp2515 interfacing PIC16F877A with encoder PIC16F877A using temperature sensor pic16f877a based spi MCP2551

    PIC16F877A

    Abstract: XE8000EV121 PIC16F877 CR2032 SC431
    Text: Users Guide SX8723/24/25 Evaluation Tools XE8000EV121 ADVANCED COMMUNICATIONS & SENSING SX8723/24/25 Evaluation Tools XE8000EV121 User’s Guide V1.7 2008 Semtech Corp. www.semtech.com 1 Users Guide SX8723/24/25 Evaluation Tools XE8000EV121 ADVANCED COMMUNICATIONS & SENSING


    Original     		PDF SX8723/24/25 XE8000EV121 PIC16F877A XE8000EV121 PIC16F877 CR2032 SC431

    PIC16F73 Free Projects of interface with lcd

    Abstract: 16F877A microcontroller interfacing with lcd pic16f877a projects PIC16F877 Free Projects PIC16F877 Free Projects of lcd keyboard lcd display in pic16f73 free projects for PIC 16f877A PIC16F73 programmer circuit diagram PIC16F877A serial port assembly programming interfacing PIC16F877A with lcd
    Text: E-blocksTM USB232 board Document code: EB039-30-1 USB232 board EB039-00-1 Technical datasheet Contents 1. 2. 3. 4. 5. About this document .2


    Original     		PDF USB232 EB039-30-1 EB039-00-1 C16F777 PIC16C745 PIC16F870/1 PIC16C765 PIC16F873/A PIC16C77 PIC16F73 Free Projects of interface with lcd 16F877A microcontroller interfacing with lcd pic16f877a projects PIC16F877 Free Projects PIC16F877 Free Projects of lcd keyboard lcd display in pic16f73 free projects for PIC 16f877A PIC16F73 programmer circuit diagram PIC16F877A serial port assembly programming interfacing PIC16F877A with lcd

    PIC16F84A Free Projects metal detector

    Abstract: PIC16F628A Free Projects of LED PIC16F84A Free Projects of LED PIC16F877A Free Projects of LED METAL DETECTOR PROGRAM PIC16F84 simple heart rate monitor circuit diagram electronic PIC16F877A code lock project PIC16F876A free projects PIC16F73 Free Projects of interface with lcd PIC16F877A metal detector
    Text: Version 3 PICmicro microcontroller development board An advanced solution for learning and developing PICmicro MCU technology HP488-60-3 matrix multimedia Improvements over version 2 development board include: • USB programmable • Can be powered via USB no need for


    Original     		PDF HP488-60-3 16F88 PIC16F84 outF877, PIC16F87, PIC16F88 PIC18F242, PIC18F248, PIC18F252, PIC18F258, PIC16F84A Free Projects metal detector PIC16F628A Free Projects of LED PIC16F84A Free Projects of LED PIC16F877A Free Projects of LED METAL DETECTOR PROGRAM PIC16F84 simple heart rate monitor circuit diagram electronic PIC16F877A code lock project PIC16F876A free projects PIC16F73 Free Projects of interface with lcd PIC16F877A metal detector

    PIC16F877A connect to 16 pin LCD

    Abstract: PIC18F4520 LED pic16f690 connected with lcd PIC16F887 POTENTIOMETER ADC PIC16F877A circuit programmer PIC18f4520 adc LCD connection to pic16F877A PIC16F73 header file 40-pin ribbon lcd pic16f684 LCD
    Text: THE KANDA PIC BOARD Introduction Here we will discuss the features of the Kanda PIC hardware, and how to use them. Device Support Here is a list of all the PIC devices that were in production at the time of development Dec 2011 . Many other PIC devices will work too – provided that


    Original     		PDF PIC12F683 PIC12F508 PIC12F609 PIC12F519 PIC12F509 PIC12F629 PIC12F635 PIC12F675 PIC12F510 PIC12F615 PIC16F877A connect to 16 pin LCD PIC18F4520 LED pic16f690 connected with lcd PIC16F887 POTENTIOMETER ADC PIC16F877A circuit programmer PIC18f4520 adc LCD connection to pic16F877A PIC16F73 header file 40-pin ribbon lcd pic16f684 LCD

    EB-006

    Abstract: EB006
    Text: PICmicro MCU multiprogrammer www.matrixltd.com EB006V9 Contents About this document General information Board layout Circuit description Protective cover PICmicro microcontroller pin out details Bus connections Circuit diagram 2 3 4 5 6 7 8 9 11 Copyright 2014 Matrix TSL


    Original     		PDF EB006V9 EB006V9 40-way EB006-30-9 EB-006 EB006

    PIC16F73 programmer circuit diagram

    Abstract: flowcode PIC16F877 i2c connection PIC16F73 I2C communication code in assembly pic16f72 simple circuit diagram with components simple PIC16F877A circuit diagram PIC16F876 asm programs NM7010 16F877A microcontroller PIC16F7x programmer circuit diagram
    Text: E-blocks internet board Document code: EB023-30-1 Internet board datasheet EB023-00-1 Contents 1. 2. 3. 4. 5. About this document .2


    Original     		PDF EB023-30-1 EB023-00-1 PIC16F73 programmer circuit diagram flowcode PIC16F877 i2c connection PIC16F73 I2C communication code in assembly pic16f72 simple circuit diagram with components simple PIC16F877A circuit diagram PIC16F876 asm programs NM7010 16F877A microcontroller PIC16F7x programmer circuit diagram

    PIC16F73 programmer circuit diagram

    Abstract: i2c 16f877a PIC16F877A functional block diagram PIC16F877A flowcode programming lcd display in pic16f73 IC 16F877A PIC16F877 i2c connection pic*16f72 c program flowcode pic16f72 simple circuit diagram with components
    Text: E-blocks internet board Document code: EB023-30-1 Internet board datasheet EB023-00-1 Contents 1. 2. 3. 4. 5. About this document. 2


    Original     		PDF EB023-30-1 EB023-00-1 PIC16F73 programmer circuit diagram i2c 16f877a PIC16F877A functional block diagram PIC16F877A flowcode programming lcd display in pic16f73 IC 16F877A PIC16F877 i2c connection pic*16f72 c program flowcode pic16f72 simple circuit diagram with components

    Z-Wave Application Programming Guide

    Abstract: GSM based remote water pump control system circuit diagram PIC16F877A Microcontroller energy meter circuit PIC16F877A advantages gsm based energy meter billing IEC1107 Digital Weighing Scale using PIC microcontroller prepaid energy meter block diagram GSM based home appliance control circuit diagram PIC Microcontroller GSM Modem
    Text: Introduction to Utility Metering Tutorial 2005 Microchip Technology Inc. DS39757A Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet.


    Original     		PDF DS39757A DS39757A-page Z-Wave Application Programming Guide GSM based remote water pump control system circuit diagram PIC16F877A Microcontroller energy meter circuit PIC16F877A advantages gsm based energy meter billing IEC1107 Digital Weighing Scale using PIC microcontroller prepaid energy meter block diagram GSM based home appliance control circuit diagram PIC Microcontroller GSM Modem

    PIC18F example code CAN bus

    Abstract: microchip pic16f877a uart PIC16F877A PIN diagram and its in pd P16F877A pic16f877a full instruction set PIC18F example code rs 485 PIC16F877A assembly programming for rs232 PIC16F877A assembly programming free projects for PIC 16f877A PIC16F877A block diagram
    Text: AN851 A FLASH Bootloader for PIC16 and PIC18 Devices Author: Ross M. Fosler and Rodger Richey Microchip Technology Inc. FIGURE 1: BOOTLOADER FUNCTIONAL BLOCK DIAGRAM RX Bootloader Firmware TX INTRODUCTION This application note demonstrates a very powerful


    Original     		PDF AN851 PIC16 PIC18 PIC16F87XA PIC18F D-85737 DS00851B-page PIC18F example code CAN bus microchip pic16f877a uart PIC16F877A PIN diagram and its in pd P16F877A pic16f877a full instruction set PIC18F example code rs 485 PIC16F877A assembly programming for rs232 PIC16F877A assembly programming free projects for PIC 16f877A PIC16F877A block diagram

    control dc motor speed using Pic16F877A

    Abstract: zigbee interfacing c code PIC16F877A advantages zigbee to PIC microcontroller interfacing circuit free pic16f877a interfacing AC motor to pic AN1192 MRF24J40 control dc motor speed using pwm Pic16F877A IGBT PIC MICROCONTROLLER bldc motor using pic16f877a
    Text: Home Appliance Solutions Electronic Solutions for Appliance Designers www.microchip.com/appliance Enabling New Technologies in Appliance Applications Appliance manufacturers are facing numerous challenges in today’s ever-changing global market. Government regulations,


    Original     		PDF Technolo886-3-6578-300 DS00241E DS00241E* control dc motor speed using Pic16F877A zigbee interfacing c code PIC16F877A advantages zigbee to PIC microcontroller interfacing circuit free pic16f877a interfacing AC motor to pic AN1192 MRF24J40 control dc motor speed using pwm Pic16F877A IGBT PIC MICROCONTROLLER bldc motor using pic16f877a