Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    PIC16F676 Search Results

    SF Impression Pixel

    PIC16F676 Price and Stock

    Microchip Technology Inc PIC16F676T-I-SL

    IC MCU 8BIT 1.75KB FLASH 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PIC16F676T-I-SL Cut Tape 5,459 1
    • 1 $1.79
    • 10 $1.79
    • 100 $1.79
    • 1000 $1.79
    • 10000 $1.79
    		Buy Now
    PIC16F676T-I-SL Digi-Reel 5,459 1
    • 1 $1.79
    • 10 $1.79
    • 100 $1.79
    • 1000 $1.79
    • 10000 $1.79
    		Buy Now
    PIC16F676T-I-SL Reel 5,200 2,600
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.7875
    		Buy Now

    Microchip Technology Inc PIC16F676-I-SL

    IC MCU 8BIT 1.75KB FLASH 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PIC16F676-I-SL Tube 5,106 1
    • 1 $1.72
    • 10 $1.72
    • 100 $1.72
    • 1000 $1.72
    • 10000 $1.72
    		Buy Now

    Microchip Technology Inc PIC16F676-I-ST

    IC MCU 8BIT 1.75KB FLASH 14TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PIC16F676-I-ST Tube 1,797 1
    • 1 $1.99
    • 10 $1.99
    • 100 $1.99
    • 1000 $1.99
    • 10000 $1.99
    		Buy Now

    Microchip Technology Inc PIC16F676-E-ST

    IC MCU 8BIT 1.75KB FLASH 14TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PIC16F676-E-ST Tube 830 1
    • 1 $2.15
    • 10 $2.15
    • 100 $2.15
    • 1000 $2.15
    • 10000 $2.15
    		Buy Now

    Microchip Technology Inc PIC16F676-I-P

    IC MCU 8BIT 1.75KB FLASH 14DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PIC16F676-I-P Tube 689 1
    • 1 $2.01
    • 10 $2.01
    • 100 $2.01
    • 1000 $2.01
    • 10000 $2.01
    		Buy Now
    Find more PIC16F676 price and stock on Findchips.com

    PIC16F676 Datasheets (37)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    PIC16F676 Microchip Technology IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,DIP,14PIN,PLASTIC Original PDF
    PIC16F676 Unknown The PIC16F630-676 microcontroller products merge Original PDF
    PIC16F676-C/P Microchip Technology FLASH-Based 8-Bit CMOS Microcontroller, 0C to +70C, 14-PDIP, TUBE Original PDF
    PIC16F676-E/ML Microchip Technology Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.75KB FLASH 16QFN Original PDF
    PIC16F676-E/ML Microchip Technology 16 Pin, 1.75KB Std Flash, 64 RAM, 12 I/O, -40C to +125C, 16-QFN, TUBE Original PDF
    PIC16F676-E/P Microchip Technology 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers Original PDF
    PIC16F676-E/P Microchip Technology 14pin PIC 10 bit A2D, flash, comp, midrange core,1K words flash,128 bytes EEPROM, -40C to +125C, 14-PDIP, TUBE Original PDF
    PIC16F676-E/SL Microchip Technology Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.75KB FLASH 14SOIC Original PDF
    PIC16F676-E/SL Microchip Technology 14 pin PIC w/10bit A2D flash,comp, midrange core,1K words flash,128 bytes EEPROM, -40C to +125C, 14-SOIC 150mil, TUBE Original PDF
    PIC16F676-E/SN Microchip Technology 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers Original PDF
    PIC16F676-E/ST Microchip Technology 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers Original PDF
    PIC16F676-E/ST Microchip Technology 14pin PIC w/10bit A2D,flash,comp, midrange core,1K words flash,128K bytes EEPROM, -40C to +125C, 14-TSSOP, TUBE Original PDF
    PIC16F676-I/ML Microchip Technology Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.75KB FLASH 16QFN Original PDF
    PIC16F676-I/ML Microchip Technology FLASH-Based 8-Bit CMOS Microcontroller, -40C to +85C, 16-QFN, TUBE Original PDF
    PIC16F676-I/P Microchip Technology 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers Original PDF
    PIC16F676-I/P Microchip Technology FLASH-Based 8-Bit CMOS Microcontroller, -40C to +85C, 14-PDIP, TUBE Original PDF
    PIC16F676-I/SL Microchip Technology Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.75KB FLASH 14SOIC Original PDF
    PIC16F676-I/SL Microchip Technology FLASH-Based 8-Bit CMOS Microcontroller, -40C to +85C, 14-SOIC 150mil, TUBE Original PDF
    PIC16F676-I/SLG Microchip Technology FLASH-Based 8-Bit CMOS Microcontroller, -40C to +85C, 14-SOIC 150mil, TUBE Original PDF
    PIC16F676-I/SN Microchip Technology 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers Original PDF

    PIC16F676 Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    PIC16F676 source code

    Abstract: PIC16F630 PIC12F629 DS41191 pic16f676 pin configuration 20-PIN PIC12F675 PIC16F676 pic16f676 hex code 0x0000-0x1FFF
    Text: PIC12F629/675/PIC16F630/676 PIC12F629/675/PIC16F630/676 Memory Programming This document includes the programming specifications for the following devices: • PIC12F629 • PIC16F630 • PIC12F675 • PIC16F676 1.0 1.1 Hardware Requirements The PIC12F629/675/PIC16F630/676 requires one


    Original     		PIC12F629/675/PIC16F630/676 PIC12F629/675/PIC16F630/676 PIC12F629 PIC16F676 PIC16F630 PIC12F675 PIC12F629/675/ PIC16F630/676 PIC16F676 source code PIC16F630 PIC12F629 DS41191 pic16f676 pin configuration 20-PIN PIC12F675 PIC16F676 pic16f676 hex code 0x0000-0x1FFF PDF

    pic16f676 pin configuration

    Abstract: pic16f630 PIC16F676 PIC16F676 application note pic16f630 datasheet PIC16F676-ICD pic16f630676 pic16f676 hex code PIC16F630/676 PIC16F676 only circuit diagram and document
    Text: PIC16F630/676 Memory Programming Specification This document includes the programming specifications for the following devices: 1.1 Hardware Requirements The PIC16F630/676 requires one power supply for VDD 5.0V and one for VPP (12V). • PIC16F630 • PIC16F676


    Original     		PIC16F630/676 PIC16F630/676 PIC16F630 PIC16F676 DK-2750 D-85737 pic16f676 pin configuration pic16f630 PIC16F676 PIC16F676 application note pic16f630 datasheet PIC16F676-ICD pic16f630676 pic16f676 hex code PIC16F676 only circuit diagram and document PDF

    51597A

    Abstract: DIP14 footprint MCP2120 MCP42010 MCP42050 SOIC-14 MOSFET R3D SOT23 R2P MARK R2C SOT-23 r2e sot 23
    Text: 14-Pin SOIC/DIP/TSSOP Evaluation Board User’s Guide 2006 Microchip Technology Inc. DS51597A 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     		14-Pin DS51597A DS51597A-page 51597A DIP14 footprint MCP2120 MCP42010 MCP42050 SOIC-14 MOSFET R3D SOT23 R2P MARK R2C SOT-23 r2e sot 23 PDF

    PIC16f690 example codes

    Abstract: PIC16F631 PIC16f690 spi example codes PIC16F677 PIC16F687 PIC16F689 thermistor 10k PIC16F690 PWM c programming Assembler programming for PIC 16f690 temperature MPASM 16f690
    Text: PIC16F631/677/685/687/689/690 Data Sheet 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2006 Microchip Technology Inc. Preliminary DS41262B 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     		PIC16F631/677/685/687/689/690 20-Pin DS41262B DS41262B-page PIC16f690 example codes PIC16F631 PIC16f690 spi example codes PIC16F677 PIC16F687 PIC16F689 thermistor 10k PIC16F690 PWM c programming Assembler programming for PIC 16f690 temperature MPASM 16f690 PDF

    AC162049

    Abstract: AC244033 rj11 6pin pinout AC244028 PIC12F510 memory programming PIC24F16KA101 AC244023 AC162061 PIC18F14K50-ICE PIC12F675-ICD
    Text: Header Board Specification WHY DO I NEED A HEADER TO DEBUG? Some PIC microcontrollers, particularly low pin count devices with 20 pins or less , generally must use a header for debugging. This is done to free up I/O lines for your application and to make production parts more affordable. Optional headers are also


    Original     		DS51292S-page AC162049 AC244033 rj11 6pin pinout AC244028 PIC12F510 memory programming PIC24F16KA101 AC244023 AC162061 PIC18F14K50-ICE PIC12F675-ICD PDF

    16f916

    Abstract: 16f914 DS41244 pic16f676 project hex code HOW TO PROGRAM PIC16F913 DS41250E DS-330-2 PIC16F914 advantages of microcontroller pic16f676 tunable crystal oscillator
    Text: PIC16F917/916/914/913 Data Sheet 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology 2005 Microchip Technology Inc. Preliminary DS41250E Note the following details of the code protection feature on Microchip devices:


    Original     		PIC16F917/916/914/913 28/40/44-Pin DS41250E DS41250E-page 16f916 16f914 DS41244 pic16f676 project hex code HOW TO PROGRAM PIC16F913 DS41250E DS-330-2 PIC16F914 advantages of microcontroller pic16f676 tunable crystal oscillator PDF

    12f683

    Abstract: 12f683 datasheet PIC12F683 DS41244 OS16 th02 AN556 AN826 AN849 DS00556
    Text: PIC12F683 Data Sheet 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2007 Microchip Technology Inc. DS41211D 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     		PIC12F683 DS41211D contain6-4803 DS41211D-page 12f683 12f683 datasheet PIC12F683 DS41244 OS16 th02 AN556 AN826 AN849 DS00556 PDF

    pic16f1823 usart c code

    Abstract: AC244045 PIC 628a PIC16F1847-ICE PIC12F615 program examples PIC16F1829 PIC16F1829-ICE pic12f1840 PIC16F1825 PICkit 2 Low Pin Count Demo Board
    Text: Debug Header Specification NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site


    Original     		He778-366 DS51292T-page pic16f1823 usart c code AC244045 PIC 628a PIC16F1847-ICE PIC12F615 program examples PIC16F1829 PIC16F1829-ICE pic12f1840 PIC16F1825 PICkit 2 Low Pin Count Demo Board PDF

    PIC16F913

    Abstract: PIC16f917 example codes PIC16F914 spi pic16f 16f916 PIC16F946 th02 PIC16F916 PIC16F917 RB724
    Text: PIC16F913/914/916/917/946 Data Sheet 28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology 2007 Microchip Technology Inc. DS41250F Note the following details of the code protection feature on Microchip devices:


    Original     		PIC16F913/914/916/917/946 28/40/44/64-Pin DS41250F out6-4803 DS41250F-page PIC16F913 PIC16f917 example codes PIC16F914 spi pic16f 16f916 PIC16F946 th02 PIC16F916 PIC16F917 RB724 PDF

    EXAMPLE of dsPIC33 full bridge pwm

    Abstract: pic16f616 PIC16 example codes TECH C compiler pwm oscillator resonator capacitor resistor AN943 DS00943 PIC16F676 programmer schematic schematic diagram online UPS AD130 ic pic16f616 Ansel 16F616
    Text: PIC16F616/16HV616 Data Sheet 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers 2006 Microchip Technology Inc. Preliminary DS41288A 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     		PIC16F616/16HV616 14-Pin DS41288A DS41288A-page EXAMPLE of dsPIC33 full bridge pwm pic16f616 PIC16 example codes TECH C compiler pwm oscillator resonator capacitor resistor AN943 DS00943 PIC16F676 programmer schematic schematic diagram online UPS AD130 ic pic16f616 Ansel 16F616 PDF

    pic16F684A

    Abstract: MPASM 16F684 16f6xx pwm example
    Text: PIC16F684 Data Sheet 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2006 Microchip Technology Inc. DS41202D 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     		PIC16F684 14-Pin DS41202D Data-572-9526 DS41202D-page pic16F684A MPASM 16F684 16f6xx pwm example PDF

    PIC16F616 programmer schematic

    Abstract: C1ch0
    Text: PIC16F610/16HV610 PIC16F616/16HV616 Data Sheet 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers 2006 Microchip Technology Inc. Preliminary DS41288B 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     		PIC16F610/16HV610 PIC16F616/16HV616 14-Pin DS41288B DS41288B-page PIC16F616 programmer schematic C1ch0 PDF

    PIC16F630 Free Projects of pir sensor

    Abstract: PIC16F877 Free Projects of pir sensor adc for pic16f676 in assembly tutorial pic16f675 DS33023 AN556 DS30000 PIC16F630 PIC16F676 MPLAB IDE PIC 16F630
    Text: PIC16F630/676 Data Sheet 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers  2003 Microchip Technology Inc. DS40039B 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     		PIC16F630/676 14-Pin DS40039B DK-2750 D-85737 DS40039B-page PIC16F630 Free Projects of pir sensor PIC16F877 Free Projects of pir sensor adc for pic16f676 in assembly tutorial pic16f675 DS33023 AN556 DS30000 PIC16F630 PIC16F676 MPLAB IDE PIC 16F630 PDF

    PIC16F873

    Abstract: PIC16F876A pic16f870 PIC18F2320 PIC16C73B PIC16C74B PIC18F458 PIC16C77 PIC16C76 PIC18F242
    Text: 1. Device Support List for PICStart+ with Firmware revision * Indicates beta-support part s in this release Device FW Version Device FW Version PIC12C508 02.01.00 PIC16C72 02.01.00 PIC12C508A 02.01.00 PIC16C72A 02.01.00 PIC12C509 02.01.00 PIC16C73A 02.01.00


    Original     		PIC12C508 PIC16C72 PIC12C508A PIC16C72A PIC12C509 PIC16C73A PIC12C509A PIC16C73B rfPIC12C509AF PIC16C745 PIC16F873 PIC16F876A pic16f870 PIC18F2320 PIC16C73B PIC16C74B PIC18F458 PIC16C77 PIC16C76 PIC18F242 PDF

    DS41284

    Abstract: ic pic16f616 16f616 DS00943 PIC16F616 PIC16HV610 Ansel 16F616 AN949 DS00949 DS00949 PIC12F615
    Text: PIC16F610/16HV610 PIC16F616/16HV616 数据手册 14 引脚 8 位 CMOS 闪存单片机  2007 Microchip Technology Inc. 初稿 DS41288B_CN 请注意以下有关 Microchip 器件代码保护功能的要点： • Microchip 的产品均达到 Microchip 数据手册中所述的技术指标。


    Original     		PIC16F610/16HV610 PIC16F616/16HV616 DS41284 ic pic16f616 16f616 DS00943 PIC16F616 PIC16HV610 Ansel 16F616 AN949 DS00949 DS00949 PIC12F615 PDF

    16f688 485

    Abstract: DS00879 PIC16C688 PIC16F688 16F688 AN943, DS00943 DS41203 DS00556 DS00826 pic16f688 circuit
    Text: PIC16F688 数据手册 采用纳瓦技术的 14 引脚 8 位 CMOS 闪存单片机  2007 Microchip Technology Inc. DS41203D_CN 请注意以下有关 Microchip 器件代码保护功能的要点： • Microchip 的产品均达到 Microchip 数据手册中所述的技术指标。


    Original     		PIC16F688 DS41203D 16f688 485 DS00879 PIC16C688 PIC16F688 16F688 AN943, DS00943 DS41203 DS00556 DS00826 pic16f688 circuit PDF

    adc for pic16f676 in assembly tutorial

    Abstract: pic16f675 the PIC Mid-Range Reference Manual DS33023 16 the PIC Mid-Range Reference Manual DS33023 PIC16F676 only circuit diagram and document PIC16F630 MPLAB IDE PIC 16F630 pic16f630 datasheet PIN OF PIC16F675 PIR CONTROLLER LP 0001
    Text: PIC16F630/676 Data Sheet 14-Pin, Flash-Based 8-Bit CMOS Microcontrollers  2010 Microchip Technology Inc. DS40039F 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     		PIC16F630/676 14-Pin, DS40039F DS40039F-page adc for pic16f676 in assembly tutorial pic16f675 the PIC Mid-Range Reference Manual DS33023 16 the PIC Mid-Range Reference Manual DS33023 PIC16F676 only circuit diagram and document PIC16F630 MPLAB IDE PIC 16F630 pic16f630 datasheet PIN OF PIC16F675 PIR CONTROLLER LP 0001 PDF

    PIC16F690 LCD project

    Abstract: No abstract text available
    Text: PIC16F631/677/685/687/689/690 Data Sheet 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2008 Microchip Technology Inc. DS41262E 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     		PIC16F631/677/685/687/689/690 20-Pin DS41262E DS41262E-page PIC16F690 LCD project PDF

    RS-485 PIC16f688 example code

    Abstract: No abstract text available
    Text: PIC16F688 Data Sheet 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2009 Microchip Technology Inc. DS41203E 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     		PIC16F688 14-Pin DS41203E DS41203E-page RS-485 PIC16f688 example code PDF

    AN556

    Abstract: AN826 AN849 DS00556 DS00826 DS30000 PIC16F684 16f6xx pwm example circuits 16F684 PIC16F68
    Text: PIC16F684 Data Sheet 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology 2006 Microchip Technology Inc. DS41202D 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     		PIC16F684 14-Pin DS41202D DS41202D-page AN556 AN826 AN849 DS00556 DS00826 DS30000 PIC16F684 16f6xx pwm example circuits 16F684 PIC16F68 PDF

    12F683

    Abstract: 12F683 8 pin dip ds41204 PIC12F683 PIC12F683 equivalent pic12f683 led driver DS00879 keeloq decode AN826 AN849
    Text: PIC12F683 Data Sheet 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology * 8-bit, 8-pin Devices Protected by Microchip’s Low Pin Count Patent: U.S. Patent No. 5,847,450. Additional U.S. and foreign patents and applications may be issued or pending.


    Original     		PIC12F683 DS41211C DS41211C-page 12F683 12F683 8 pin dip ds41204 PIC12F683 PIC12F683 equivalent pic12f683 led driver DS00879 keeloq decode AN826 AN849 PDF

    AC164103

    Abstract: AC164101 pic16f630 datasheet RFPIC12F675 KEELOQ firmware modules AC164102 AC164104 AC164105 AC164106 PIC12F629
    Text: rfPIC Development Kit 1 Summary The rfPIC Development Kit provides design engineers with an easy way to evaluate unidirectional remote sense and control wireless links based on the rfPIC12F675 and rfRXD0420 devices. The kit is based on the popular PICkit™ 1 FLASH Starter Kit and consists of modular


    Original     		rfPIC12F675 rfRXD0420 DS51409A DS51409A* AC164103 AC164101 pic16f630 datasheet KEELOQ firmware modules AC164102 AC164104 AC164105 AC164106 PIC12F629 PDF

    PIC16F676 only circuit diagram and document

    Abstract: PIC16F676 programmer schematic pic16f676 PIC16F676 Data Sheet push pull converter with dsPIC pic16F676 datasheet picdem.net Development tool Manual Flash hair dryer circuit diagram finger print sensor pcb with circuit
    Text: TC1047A Temperature-to-Voltage Converter PICtail Demo Board User’s Guide 2006 Microchip Technology Inc. DS51483B 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     		TC1047A DS51483B DS51483B-page PIC16F676 only circuit diagram and document PIC16F676 programmer schematic pic16f676 PIC16F676 Data Sheet push pull converter with dsPIC pic16F676 datasheet picdem.net Development tool Manual Flash hair dryer circuit diagram finger print sensor pcb with circuit PDF

    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     		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 PDF