Buzzer: The Buzzer is an integrated electronic Xiangqi structure, with a DC power supply, widely used in computers, printers, photocopiers, alarms, electronic toys, automotive electronics, telephones, timers, etc. electronic products for sound devices.
Buzzer Category: divided into piezoelectric buzzer and magnetic buzzer
Buzzer circuit pattern symbol: buzzer in the circuit by the letter "H" or "HA" (the old standard with the "FM", "LB", "JD", etc.) respectively.
* Contents
- Connect
S ----- D2
middle ----- 5V
- ----- GND
- Key Code
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4); // LCD2004
int S = 2 ;// connect the I/O pin on the buzzer to this
This 7.0" TFT LCD Module can be can be easy controlled by MCU such as 51,AVR,STM32,PIC,MSP430,DSP,ARM, and ARM .It can be used in any embedded systems which require display high quality colorful image. The Module used
SSD1963 LCD controller with 7 inch LCD module with touchscreen. This LCD has a superior display quality and super wide viewing angle, please see the sample pictures, they are taken directly from the LCD display.
On board 400mA DC-DC Boost regulator to provide power supply to LCD backlight
LCD-specificed intialization code is provided, so that you can save time to optimize power control register and gamma curves for best display performance. We have test the provided code, it gives the best display performanace
There’s no doubt Arduino has quickly become the world’s most popular do-it-yourself microcontroller board system, thanks to its simplicity, versatility and surprisingly low cost. But the key to that versatility is its Shield header that allows daughter boards or ‘shields’ to extend the Arduino’s functionality. In the last project, we built a digital clock project using the popular 1602 alphanumeric LCD shield and it’s hopefully had your mind ticking over with other ideas and possibilities. This month, we’re going a step further, introducing a new low-cost shield that incorporates a 320 x 240-pixel TFT LCD touchscreen.
The ST7781 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720 source line and
320 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts,
8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the on-chip display data RAM of 240x320x18
bits. It can perform display data RAM read/write operation with no external operation clock to minimize power
consumption. In addition, because of the integrated power supply circuits necessary to drive liquid crystal, it is possible to
Power supply voltage:2.7V-3.3V,5V is OK,but part of the screen becomes black when tested
Data interface level:2.7-5V
Backlight power supply voltage:highest 3.3V
Module size:43.6mm x 43.1mm(width X height)
Installation diameter:2mm
Backlight:White
Features :
84 X 84 dot matrix LCD,can show 4 lines of characters
Use serial interface communicate with the master processor,the number of interface signal line reduced greatly, only 8 signal lines including power and GND.Support different types of MCU,such as the SPI,MCS51 serial mode 0 of AVR.Transfer rate up to 4Mbps,can full speed write display data without waiting time.
Can use the conductive glue to connect the module with the printed board,without connecting cable.The metal hooks on the module can fix the module on the printed board,which is very easy to install and replace.
LCD controller/driver chip has been bound to LCD chip,the volume of LCD is small
Low power supply,the working current in normal situation is lower than 200μA,and has power-down mode
Make your own little LED strip arrangement with this stick of NeoPixel LEDs. We crammed 8 of the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a PCB with mounting holes and a chainable design. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC (4-7V works) and you're ready to rock.
2.54MM PIN 6 Digitals LED Board ,Can be inserted directly into Arduiuo UNO MEGA2560 DUE Board ,Ideal for linking up to your Arduiuo UNO Pro Mini Nano Mega2560 DUE Development Board etc,or others MCU Embedded development board (AVR STM32 STM8 STM0 ARM7 ARM9 ARM11 PIC C8051 C51 STC MSP430 FPGA/CPLD etc.)
6 bit 6 colors Common Cathode LEDs.
Multicolor are White Blue Chartreuse Yellow Pink Red.
7 PIN OUT 2.54mm
1K ohm Limiting resistor
Power Supply Voltage: 3.3-12V
LED & Resistor Package : 0603
Size: 17.78MM x 11.43MM
* Contents
- Key Code
int D1 = 13;//White
int D2 = 12;//Blue
int D3 = 11;//Chartreuse
int D4 = 10;//Yellow
int D5 = 9;//Pink
int D6 = 8;//Red
int GND = 7;//GND
int D11 = 6;//White
int D12 = 5;//Blue
int D13 = 4;//Chartreuse
int D14 = 3;//Yellow
int D15 = 2;//Pink
int D16 = 1;//Red
int i;
void setup() {
pinMode(D1, OUTPUT);
pinMode(D2, OUTPUT);
pinMode(D3, OUTPUT);
pinMode(D4, OUTPUT);
pinMode(D5, OUTPUT);
pinMode(D6, OUTPUT);
pinMode(D11, OUTPUT);
pinMode(D12, OUTPUT);
pinMode(D13, OUTPUT);
pinMode(D14, OUTPUT);
pinMode(D15, OUTPUT);
pinMode(D16, OUTPUT);
pinMode(GND, OUTPUT);
digitalWrite(GND, LOW);
}
// the loop routine runs over and over again forever:
void loop() {
//White LED light than any other color lights, so reducing the brightness
for(i=0;i< ms_cnt/6;i++)
{
digitalWrite(D1, HIGH);
delay(1);
digitalWrite(D1, LOW);
delay(5);
}
digitalWrite(D2, HIGH); // turn the LED on (HIGH is the voltage level)
delay(ms_cnt); // wait for a Millisecond
digitalWrite(D2, LOW); // turn the LED off by making the voltage LOW
digitalWrite(D3, HIGH); // turn the LED on (HIGH is the voltage level)
delay(ms_cnt); // wait for a Millisecond
digitalWrite(D3, LOW); // turn the LED off by making the voltage LOW
digitalWrite(D4, HIGH); // turn the LED on (HIGH is the voltage level)
delay(ms_cnt); // wait for a Millisecond
digitalWrite(D4, LOW); // turn the LED off by making the voltage LOW
digitalWrite(D5, HIGH); // turn the LED on (HIGH is the voltage level)
delay(ms_cnt); // wait for a Millisecond
digitalWrite(D5, LOW); // turn the LED off by making the voltage LOW
digitalWrite(D6, HIGH); // turn the LED on (HIGH is the voltage level)
delay(ms_cnt); // wait for a Millisecond
digitalWrite(D6, LOW); // turn the LED off by making the voltage LOW
//White LED light than any other color lights, so reducing the brightness
These 10 segment bar graph LEDs have many uses. With a compact footprint, and a simple hookup, they are easy for prototyping or finished products. Essentially, they are 10 individual red LEDs housed together.
Magic Light Cup modules are easy to Interactive Technology Division developed a can and ARDUINO interactive modules, PWM dimming principle is to use the principle of two modules brightness changes. Mercury switches provide a digital signal that triggers the PWM regulator, through the program design, We can see the light like two cups filled with the effect of shuffling back and forth.
