Active Buzzer [D026]



https://www.youtube.com/watch?v=JzI7O5Gpwgw


* GitHubhttps://github.com/rdiot/rdiot-d026.git


* Specs

5v Magnetic Continuous Tone Active Buzzer. Listing is for 2 buzzers.


* Contents

- Connect

+ ----- 5V

- ----- GND


- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

int BUZZER = 8;


void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");


  pinMode(BUZZER,OUTPUT);

  delay(1000);


  lcd.clear();

}


void loop()

{

  lcd.setCursor(0,0);

  lcd.print("D026 Active Buzzer");


  digitalWrite(BUZZER,HIGH);

  lcd.setCursor(0,1);

  lcd.print("buzzer HIGH");

  delay(1000);


  digitalWrite(BUZZER,LOW);

  lcd.setCursor(0,1);

  lcd.print("buzzer LOW ");

  delay(1000);

}

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MCH-K305D DC Switching Power Supply 30V 5A (MCH-K305D) [B029]



https://www.youtube.com/watch?v=SeivauVX-CA


* Specs

Model No. MCH-K305D

Line Voltage 200-240VAC,50Hz-60Hz

Input Current (at 220VAC,full load) 0.9A

Output Voltage Range 0-30V

Output Current Range 0-5A

Voltage Display Accuracy ±0.5%

Current Display Accuracy ±0.5%

Efficiency >85%

Load Regulation(10-100%) 50mV

Line Regulation(200-240VAC) 20mV

Ripple & Noise(P-P) 50mV

Load Regulation(10-100%) 20mA

Line Regulation(200-240VAC) 20mA

Ripple & Noise(p-p) 20mA

Operating Ambient -10°c to + 60°c, 30%RH to 90% RH

Size 7(W) x 16(H) x 22(D)cm

Weight 1.35kg

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Breadboard Power Supply Module 3.3V, 5V (MB-102) [B022]



https://www.youtube.com/watch?v=RhCuFxrJG2A


* Specs

- Feature

Breadboard power supply module, with 5 V, 3.3 V output voltages

Apply to MB102 Standard breadboard

Input voltage: 6.5-12 V (DC) or 5V USB power supply

Output voltage: 3.3V and 5V can switch over

Maximum output current: <700 ma

Input voltage ON/OFF switch

Independent control of upper and Lower Bread Board Power Rails. Can switch over to 0 V, 3.3 V, 5 V using jumpers on any rail.

On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use.

- Connection

1x Barrel 5mm Connector (center +ve) for Input Power

1x USB connector for 5V input or 5V output

4x 2Pin Headers pointing downward for 3.3V or 5V output

1x 2×4 Header for 3.3V and 5V output

2x 1×4 selection jumper for 3.3V/OFF/5V



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RFID-RC522 (MFRC-522) [S012]



RFID-RC522 (MFRC-522) Check UID [S012] 

https://www.youtube.com/watch?v=XxsINKkGcmQ


RFID-RC522 (MFRC-522) Check Hex Editor [S012] 

https://www.youtube.com/watch?v=XpHI3dOjctg


*GitHubhttps://github.com/rdiot/rdiot-s012.git


* Specs

The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE and NTAG. 

The MFRC522’s internal transmitter is able to drive a reader/writer antenna designed to communicate with ISO/IEC 14443 A/MIFARE cards and transponders without additional active circuitry. The receiver module provides a robust and efficient implementation for demodulating and decoding signals from ISO/IEC 14443 A/MIFARE compatible cards and transponders. The digital module manages the complete ISO/IEC 14443 A framing and error detection (parity and CRC) functionality.

The MFRC522 supports MF1xxS20, MF1xxS70 and MF1xxS50 products. The MFRC522

supports contactless communication and uses MIFARE higher transfer speeds up to 848 kBd in both directions.


Highly integrated analog circuitry to demodulate and decode responses

 Buffered output drivers for connecting an antenna with the minimum number of

external components

 Supports ISO/IEC 14443 A/MIFARE and NTAG

 Typical operating distance in Read/Write mode up to 50 mm depending on the

antenna size and tuning

 Supports MF1xxS20, MF1xxS70 and MF1xxS50 encryption in Read/Write mode

 Supports ISO/IEC 14443 A higher transfer speed communication up to 848 kBd

 Supports MFIN/MFOUT

 Additional internal power supply to the smart card IC connected via MFIN/MFOUT

 Supported host interfaces

 SPI up to 10 Mbit/s

2C-bus interface up to 400 kBd in Fast mode, up to 3400 kBd in High-speed mode

 RS232 Serial UART up to 1228.8 kBd, with voltage levels dependant on pin

voltage supply

 FIFO buffer handles 64 byte send and receive

 Flexible interrupt modes

 Hard reset with low power function

 Power-down by software mode

 Programmable timer

 Internal oscillator for connection to 27.12 MHz quartz crystal

 2.5 V to 3.3 V power supply

 CRC coprocessor

 Programmable I/O pins

 Internal self-test



* Contents

- DataSheet : http://www.nxp.com/documents/data_sheet/MFRC522.pdf


- Connect : PinMap https://github.com/miguelbalboa/rfid#pin-layout

3.3V - 3.3V

RST - D9

GND - GND

IRQ - X

MISO - D12

MOSI - D11

SCK - D13

SDA - D10


- Library : https://github.com/miguelbalboa/rfid 

 : Key Reset : rfid_default_keys

 : Save Data : rfid_write_personal_data

 : Dump : DumpInfo


- Key Code

#include "U8glib.h"

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE);


#include <SPI.h>

#include <MFRC522.h>


#define RST_PIN  9  // 

#define SS_PIN  10  //


MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance

String rfidUid = "";



void setup() {

  

 Serial.begin(9600);  // Initialize serial communications with the PC

 while (!Serial);  // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)

 SPI.begin();   // Init SPI bus

 mfrc522.PCD_Init();  // Init MFRC522

 ShowReaderDetails(); // Show details of PCD - MFRC522 Card Reader details

 Serial.println(F("Scan PICC to see UID, type, and data blocks..."));

}


void loop() {


  // picture loop

  u8g.firstPage();  

  do {

    draw();

  } while( u8g.nextPage() );

  

  // rebuild the picture after some delay

  //delay(500);

  

 // Look for new cards

 if ( ! mfrc522.PICC_IsNewCardPresent()) {

  return;

 }


 // Select one of the cards

 if ( ! mfrc522.PICC_ReadCardSerial()) {

  return;

 }

  mfrc522.PICC_DumpToSerial(&(mfrc522.uid));

rfidUid = "";

for (byte i = 0; i < mfrc522.uid.size; i++) {

  rfidUid += String(mfrc522.uid.uidByte[i] < 0x10 ? "0" : "");

  rfidUid += String(mfrc522.uid.uidByte[i], HEX);

}


 // Dump debug info about the card; PICC_HaltA() is automatically called


}


void ShowReaderDetails() {

 // Get the MFRC522 software version

 byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);

 Serial.print(F("MFRC522 Software Version: 0x"));

 Serial.print(v, HEX);

 if (v == 0x91)

  Serial.print(F(" = v1.0"));

 else if (v == 0x92)

  Serial.print(F(" = v2.0"));

 else

  Serial.print(F(" (unknown)"));

 Serial.println("");

 // When 0x00 or 0xFF is returned, communication probably failed

 if ((v == 0x00) || (v == 0xFF)) {

  Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));

 }

}


void draw(void) {

  u8g.setFont(u8g_font_9x15B);

  u8g.setPrintPos(0, 12); 

  u8g.println("MFRC522");


  u8g.setFont(u8g_font_helvB14);

  u8g.setPrintPos(0,40);


  u8g.print("UID="+rfidUid);


  u8g.setFont(u8g_font_helvB14);

  u8g.setPrintPos(0,60);


  if(rfidUid == "3f0f3e5f")

  u8g.print("OPEN=YES");

  else if(rfidUid == "")

  u8g.print("NONE");

  else

  u8g.print("OPEN=NO");

  

}


- Result

ector Block   0  1  2  3   4  5  6  7   8  9 10 11  12 13 14 15  AccessBits

  15     63   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         62   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         61   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         60   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

  14     59   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         58   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         57   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         56   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

  13     55   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         54   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         53   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         52   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

  12     51   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         50   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         49   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         48   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

  11     47   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         46   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         45   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         44   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

  10     43   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         42   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         41   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         40   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   9     39   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         38   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         37   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         36   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   8     35   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         34   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         33   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         32   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   7     31   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         30   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         29   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         28   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   6     27   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         26   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         25   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         24   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   5     23   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         22   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         21   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         20   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   4     19   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         18   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         17   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         16   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   3     15   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         14   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         13   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

         12   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   2     11   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

         10   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

          9   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

          8   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

   1      7   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

          6   00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00  [ 0 0 0 ] 

          5   20 20 20 20  20 20 20 20  20 20 20 20  20 20 45 01  [ 0 0 0 ] 

          4   67 65 75 6E  79 6F 6E 67  20 20 20 20  20 20 20 20  [ 0 0 0 ] 

   0      3   00 00 00 00  00 00 FF 07  80 69 FF FF  FF FF FF FF  [ 0 0 1 ] 

          2   20 20 20 20  20 20 20 20  20 20 20 20  20 20 45 01  [ 0 0 0 ] 

          1   6B 69 6D 20  20 20 20 20  20 20 20 20  20 20 20 20  [ 0 0 0 ] 

          0   83 A2 5C 02  7F 88 04 00  85 00 B4 2E  F0 BB 6A A8  [ 0 0 0 ] 


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