PIC16F877A Raws Li RFID System: 5 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:24

RFID system yog txheej txheem uas muab cov cim ntawm cov tub ntxhais kawm, cov neeg ua haujlwm, thiab lwm yam siv RFID lossis, txhawm rau saib xyuas lawv nyob, ua haujlwm, sijhawm ua haujlwm thiab ntau yam ntxiv.

Kab lus no yog txhawb nqa nrog JLCPCB. Kuv yeej ua tsaug JLCPCB rau kev txhawb nqa txoj haujlwm no.

Cov kab ke no tau tsim nyob ib puag ncig PIC microcontroller PIC16F877A thiab RFID Reader RDM6300, uas yog nyeem ntawv 125 kHz. Nws tseem nta LCD 1602 zaub, lub suab nrov, servo SG90 thiab qhov ntsuas hluav taws xob ib feem. Thaum pom lub cim npe, tso saib cov ntaub ntawv hais txog lub cim twg uas tau tshawb pom, lub suab nrov nrov yog lub suab nrov, LED tig rau, thiab lub servo tau qhib.

Kauj Ruam 1: Kauj Ruam 2: Cov Cheeb Tsam Yuav Tsum Tau

PIC16F877A

Qhov muaj zog CMOS FLASH-based 8-ntsis microcontroller ntim Microchip lub zog PIC architecture rau hauv 40- lossis 44-pin pob. PIC16F877A nta 256 bytes ntawm EEPROM cov ntaub ntawv nco, tus kheej lub cajmeem, ICD, 2 Sib Piv, 8 raws ntawm 10-ntsis Analog-rau-Digital (A/D) hloov pauv, 2 ntes/sib piv/PWM ua haujlwm, qhov chaw nres nkoj synchronous tuaj yeem teeb tsa ua 3-xaim Serial Peripheral Interface (SPI or) lossis 2-xaim Inter-Integrated Circuit (I²C ™) npav thiab Universal Asynchronous Receiver Transmitter (USART).

Cov ncauj lus kom ntxaws ntawm PIC16F877A:

CPU: 8-ntsis PIC

- Tus lej suav: 40

- Max. CPU Ceev (MHz): 20

- Internal Oscillator: Tsis yog

Tsis muaj ADC raws: 14

- Max ADC Resolution (khoom): 10

- Sab Hauv Qhov Siv Hluav Taws Xob: Yog

- Tsis muaj UART module: 1

Tsis yog SPI Module: 1

- Tsis yog I2C module: 1

- Kab. kov Raws: 11

- Yam Ua Haujlwm Yam tsawg kawg nkaus Voltage (V): 2

- Ua Haujlwm Siab Tshaj Plaws (V): 5.5

RDM6300

RDM6300 125KHz daim npav nyeem ntawv mini-module tau tsim los rau kev nyeem kab ntawv los ntawm 125KHz daim npav tau txais tsuas yog cim npe thiab nyeem/sau daim npav. Nws tuaj yeem siv rau hauv chaw ua haujlwm/kev nyab xeeb hauv tsev, kev qhia tus kheej, tswj kev nkag mus, tiv thaiv kev dag, sib tham sib khoom ua si thiab tswj kev tsim khoom thiab lwm yam.

Nta Tseem Ceeb:

- Txhawb nqa tus kav hlau txais xov sab nraud;

- Qhov siab tshaj plaws nyob deb li ntawm 50 hli;

- Tsawg dua 100 ms lub sijhawm txiav txim siab;

- UART interface;

- Txhawb EM4100 sib xws nyeem nkaus xwb lossis nyeem/sau cim npe;

- Tsim tus qauv me me.

LCD1602 Zaub

Cov zaub yog tsim los ntawm 16-cim x 2-kab LCD zaub nrog lub teeb ci xiav thiab cov cim dawb. Txhua tus cim tau tsim los ntawm 5 x 8 dot matrix rau sawv cev zoo. Lub teeb pom kev rov qab muaj lub zog ntsuas rau kev hloov pauv qhov sib txawv ntawm cov zaub kom pom zoo tshaj plaws.

Cov yam ntxwv tseem ceeb ntawm LCD1602 zaub:

-16-cim x 2-kab Blue LCD;

Yeem I2C interface;

- Kho lub teeb pom kev zoo thiab sib piv;

- 5 V ua haujlwm.

SG90 SERVO TSAV

Micro Servo Motor SG90 yog lub tshuab me me thiab lub cev muaj zog nrog lub zog tso zis siab. Servo tuaj yeem tig kwv yees li 180 degrees (90 hauv txhua qhov kev taw qhia). Koj tuaj yeem siv ib qho kev pabcuam servo, kho vajtse lossis tsev qiv ntawv los tswj cov kev pabcuam no. Zoo rau cov pib tshiab uas xav ua kom cov khoom txav mus yam tsis tsim lub cav tswj nrog lub tswv yim & lub thawv iav, tshwj xeeb tshaj yog txij li nws yuav haum hauv qhov chaw me me.

Cov yam ntxwv tseem ceeb:

Qhov hnyav: 9 g

Dimension: 22.2 x 11.8 x 31 mm kwv yees.

Lub zog loj: 1.8 kgf · cm

Kev khiav hauj lwm ceev: 0.1 s/60 degree

Kev siv hluav taws xob: 4.8 V (~ 5V)

Tuag band dav: 10 µs

Kub ntau: 0 ºC - 55 ºC

Cheebtsam Passive

Buzzer

SMD LM7805 tus tswj hluav taws xob

3x 1206 LED (ib qho liab, ob ntsuab)

3 x SMD 0805 resistor 330 Ω

1x SMD 0805 resistor 10 KΩ

2.1 hli DC txuas

SMD Quartz oscillator 4 MHz

2x 2pin KF301 txuas

1x 3pin KF301 txuas

3x SMD 0805 capacitor 100 nF

1x SMD Potentiometer 10 kΩ

1x16 Poj Niam Header

Kauj Ruam 2: Kauj Ruam 3: Schematics

RDM6300 txuas nrog PIC16F877A los ntawm UART pins ntawm PIC. Zaub tau txuas nrog hauv cov ntaub ntawv sib luag, thaum servo txuas nrog tus pin RB0. Buzzer txuas nrog tus pin x. Lub zog tau muab los ntawm cov khoom sib txuas DC qub thiab dhau los ntawm kev tswj hwm qhov hluav taws xob.

Kauj Ruam 3: Kauj Ruam 4: Hais kom cov PCBs

Tom qab ob qho tib si kos duab thiab teeb tsa ua tiav, cov kauj ruam tom ntej yog xaj PCB. Txog kev xaj khoom, qhov chaw zoo tshaj plaws uas kuv tau tuaj txog yog JLCPCB. Txhawm rau xaj, tsuas yog mus rau lawv lub vev xaib, sau npe, thiab mus rau Quote tam sim no khawm.

JLCPCB yog tus txhawb nqa txoj haujlwm no. JLCPCB (Shenzhen JLC Electronics Co., Ltd.), yog lub tuam txhab PCB loj tshaj plaws hauv Suav teb thiab cov tuam txhab tsim khoom lag luam tshwj xeeb tshwj xeeb hauv PCB sai sai thiab tsim PCB me me. Koj tuaj yeem xaj yam tsawg kawg ntawm 5 PCBs rau tsuas yog $ 2.

Kauj Ruam 4: Kauj Ruam 5: Ntxiv Koj Cov Ntaub Ntawv Gerber

Txhawm rau kom tau txais koj lub rooj tsav xwm tsim qauv, koj yuav tsum xa cov ntaub ntawv gerber. Tau kawg, JLCPCB qhov chaw muaj cov lus qhia ntxaws ntxaws txog yuav tsim cov ntaub ntawv gerber rau cov software sib txawv li cas. Thaum cov ntaub ntawv gerber raug tsim, zip lawv, thiab xa lawv ua ib daim ntawv rau JLCPCB.

Thaum cov ntaub ntawv zip tau rub tawm, koj tuaj yeem pom lawv hauv tus saib gerber. Muaj, koj tuaj yeem paub tseeb tias txhua yam zoo nrog koj lub rooj tsavxwm, thiab nws zoo li cas. Tom qab ntawd, rov tshuaj xyuas lub rooj tsav xwm loj, xim pawg thawj coj saib thiab lwm yam khoom, thiab txuas ntxiv mus rau kev txheeb xyuas. Koj tuaj yeem xaj 5 PCBs rau tsuas yog $ 2.

Txhawm rau txiav txim, nyem rau ntawm "SAVE TO CART" khawm.

Kauj Ruam 5: Kauj Ruam 6: Tsim PCB

PCB no tau tsim tawm hauv 3 hnub, thiab tuaj txog hauv ob lub lis piam siv FedEx. Yog lawm, tag nrho 5 PCBs tau ntim zoo heev hauv lub thawv thiab hauv lub hnab ntawv npuas, yog li tsis muaj txoj hauv kev uas cov laug cam puas. Kev ua tau zoo ntawm PCBs yog, thiab ib txwm yog, BRILLIANT!