(SKU:RB-05L007)LCD4884液晶搖桿擴(kuò)展板
來(lái)自ALSROBOT WiKi
目錄 |
產(chǎn)品概述
最新推出的LCD4884 LCD Joystick Shield v2.0 LCD4884液晶屏擴(kuò)展板是哈爾濱奧松機(jī)器人科技有限公司研發(fā)的一款黑白屏液晶擴(kuò)展板。此擴(kuò)展板采用Nokia 5110液晶屏為顯示器件。SPI接口，最大限度的節(jié)省I/O資源。特別添加五向搖桿，方便實(shí)現(xiàn)搭建人機(jī)互動(dòng)接口，剩余的模擬與數(shù)字接口全部用插針引出，便于安裝其它傳感器與模塊。本品適用于各種開(kāi)發(fā)板和控制器，例如：Arduino控制器、STC單片機(jī)、AVR單片機(jī)等。
規(guī)格參數(shù)
- 產(chǎn)品名稱：LCD4884液晶搖桿擴(kuò)展板
- 產(chǎn)品貨號(hào)：RB-05L007
- 工作電壓：DC5V
- 產(chǎn)品類型：Arduino擴(kuò)展板
- 制作工藝：FR4雙面噴錫
- 人性化設(shè)計(jì)：具有可人機(jī)互動(dòng)接口“五項(xiàng)搖桿”
- 工作溫度：10℃-30℃
- 重量：28g
- 產(chǎn)品尺寸：69.47mm x 53.34mm x 18mm
- 發(fā)貨清單：LCD4884液晶搖桿擴(kuò)展板×1
- 包裝方式：靜電袋密封
- 選配配件：3PIN傳感器連接線、Arduino 328控制器等
- 板載資源：
- 數(shù)字接口：8個(gè)
- 模擬輸入借口：5個(gè)
- 48×84液晶：1個(gè)
- 無(wú)向搖桿按鍵：1個(gè)
- 系統(tǒng)復(fù)位按鍵：1個(gè)
使用方法
使用硬件
- Carduino UNO 控制器 * 1個(gè)
- LCD4884 Joystick Shield ×1
- USB數(shù)據(jù)通信線×1
例子程序
程序上傳前需要先點(diǎn)此下載LCD4884 程序使用到的庫(kù)文件，將它放到Arduino安裝目錄下的libraries文件夾下.
注意：LCD4884液晶顯示模塊不能與1.6以上版本的IDE兼容，需要使用老版本的IDE進(jìn)行編譯，例如：1.0.4、1.0.5
老版本IDE下載地址：http://www.arduino.cc/en/Main/OldSoftwareReleases
#include "LCD4884.h"
#include "Robotbase_bmp.h"
#include "Robotbase.h"
//keypad debounce parameter
#define DEBOUNCE_MAX 15
#define DEBOUNCE_ON 10
#define DEBOUNCE_OFF 3
#define NUM_KEYS 5
#define NUM_MENU_ITEM 4
// joystick number
#define LEFT_KEY 0
#define CENTER_KEY 1
#define DOWN_KEY 2
#define RIGHT_KEY 3
#define UP_KEY 4
// menu starting points
#define MENU_X 10 // 0-83
#define MENU_Y 1 // 0-5
int analogPin = 1;
int ADC_result = 0;
char qian = 0,bai = 0,shi = 0,ge = 0;
int adc_key_val[5] ={ 50, 200, 400, 600, 800 };
// debounce counters
byte button_count[NUM_KEYS];
// button status - pressed/released
byte button_status[NUM_KEYS];
// button on flags for user program
byte button_flag[NUM_KEYS];
// menu definition
char menu_items[NUM_MENU_ITEM][12]={
"Temperature",
" Char Map ",
" Picture ",
" About "
};
void (*menu_funcs[NUM_MENU_ITEM])(void) = {
temperature,
charmap,
bitmap,
about
};
char current_menu_item;
void setup()
{
// setup interrupt-driven keypad arrays
// reset button arrays
for(byte i=0; i<NUM_KEYS; i++){
button_count[i]=0;
button_status[i]=0;
button_flag[i]=0;
}
// Setup timer2 -- Prescaler/256
TCCR2A &= ~((1<<WGM21) | (1<<WGM20));
TCCR2B &= ~(1<<WGM22);
TCCR2B = (1<<CS22)|(1<<CS21);
ASSR |=(0<<AS2);
// Use normal mode
TCCR2A =0;
//Timer2 Overflow Interrupt Enable
TIMSK2 |= (0<<OCIE2A);
TCNT2=0x6; // counting starts from 6;
TIMSK2 = (1<<TOIE2);
SREG|=1<<SREG_I;
lcd.LCD_init();
lcd.LCD_clear();
//menu initialization
init_MENU();
current_menu_item = 0;
lcd.backlight(ON);//Turn on the backlight
//lcd.backlight(OFF); // Turn off the backlight
}
/* loop */
void loop()
{
byte i;
for(i=0; i<NUM_KEYS; i++){
if(button_flag[i] !=0){
button_flag[i]=0; // reset button flag
switch(i){
case UP_KEY:
// current item to normal display
lcd.LCD_write_string(MENU_X, MENU_Y + current_menu_item, menu_items[current_menu_item], MENU_NORMAL );
current_menu_item -=1;
if(current_menu_item <0) current_menu_item = NUM_MENU_ITEM -1;
// next item to highlight display
lcd.LCD_write_string(MENU_X, MENU_Y + current_menu_item, menu_items[current_menu_item], MENU_HIGHLIGHT );
break;
case DOWN_KEY:
// current item to normal display
lcd.LCD_write_string(MENU_X, MENU_Y + current_menu_item, menu_items[current_menu_item], MENU_NORMAL );
current_menu_item +=1;
if(current_menu_item >(NUM_MENU_ITEM-1)) current_menu_item = 0;
// next item to highlight display
lcd.LCD_write_string(MENU_X, MENU_Y + current_menu_item, menu_items[current_menu_item], MENU_HIGHLIGHT );
break;
case LEFT_KEY:
init_MENU();
current_menu_item = 0;
break;
case CENTER_KEY:
lcd.LCD_clear();
(*menu_funcs[current_menu_item])();
lcd.LCD_clear();
init_MENU();
current_menu_item = 0;
break;
}
}
}
}
/* menu functions */
void init_MENU(void){
byte i;
lcd.LCD_clear();
lcd.LCD_write_string(MENU_X, MENU_Y, menu_items[0], MENU_HIGHLIGHT );
for (i=1; i<NUM_MENU_ITEM; i++){
lcd.LCD_write_string(MENU_X, MENU_Y+i, menu_items[i], MENU_NORMAL);
}
}
// waiting for center key press
void waitfor_OKkey(){
byte i;
byte key = 0xFF;
while (key!= CENTER_KEY){
for(i=0; i<NUM_KEYS; i++){
if(button_flag[i] !=0){
button_flag[i]=0; // reset button flag
if(i== CENTER_KEY) key=CENTER_KEY;
}
}
}
}
void temperature()
{
byte i;
byte key = 0xFF;
while (key!= CENTER_KEY){
ADC_result = analogRead(analogPin);
qian = ADC_result / 1000;
bai = ADC_result % 1000 / 100;
shi = ADC_result % 1000 % 100 / 10;
ge = ADC_result % 10;
lcd.LCD_write_char_big(10, 1, '+', MENU_NORMAL);
lcd.LCD_write_char_big(22, 1, qian-48, MENU_NORMAL);
lcd.LCD_write_char_big(35, 1, bai-48, MENU_NORMAL);
lcd.LCD_write_char_big(48, 1, '.', MENU_NORMAL);
lcd.LCD_write_char_big(51, 1, shi-48, MENU_NORMAL);
lcd.LCD_write_char_big(64, 1, ge-48, MENU_NORMAL);
lcd.LCD_write_string(78, 2, "C", MENU_NORMAL);
lcd.LCD_write_string(36, 5, "OK", MENU_HIGHLIGHT );
for(i=0; i<NUM_KEYS; i++){
if(button_flag[i] !=0){
button_flag[i]=0; // reset button flag
if(i== CENTER_KEY) key=CENTER_KEY;
}
}
}
}
void charmap(){
char i,j;
for(i=0; i<5; i++){
for(j=0; j<14; j++){
lcd.LCD_set_XY(j*6,i);
lcd.LCD_write_char(i*14+j+32, MENU_NORMAL);
}
}
lcd.LCD_write_string(36, 5, "OK", MENU_HIGHLIGHT );
waitfor_OKkey();
}
void bitmap(){
lcd.LCD_draw_bmp_pixel(0,0, Robotbase_bmp, 84,24);
lcd.LCD_write_chinese(12,3, Robotbase_chinese,12,5,0,0);
lcd.LCD_write_string(36, 5, "OK", MENU_HIGHLIGHT );
waitfor_OKkey();
}
void about(){
lcd.LCD_write_string( 0, 0, "LCD4884 Shield", MENU_NORMAL);
lcd.LCD_write_string( 32, 1, "www", MENU_NORMAL);
lcd.LCD_write_string( 10, 2, ".robotbase.", MENU_NORMAL);
lcd.LCD_write_string( 35, 3, "cn", MENU_NORMAL);
lcd.LCD_write_string(36, 5, "OK", MENU_HIGHLIGHT );
waitfor_OKkey();
}
// The followinging are interrupt-driven keypad reading functions
// which includes DEBOUNCE ON/OFF mechanism, and continuous pressing detection
// Convert ADC value to key number
char get_key(unsigned int input)
{
char k;
for (k = 0; k < NUM_KEYS; k++)
{
if (input < adc_key_val[k])
{
return k;
}
}
if (k >= NUM_KEYS)
k = -1; // No valid key pressed
return k;
}
void update_adc_key(){
int adc_key_in;
char key_in;
byte i;
adc_key_in = analogRead(0);
key_in = get_key(adc_key_in);
for(i=0; i<NUM_KEYS; i++)
{
if(key_in==i) //one key is pressed
{
if(button_count[i]<DEBOUNCE_MAX)
{
button_count[i]++;
if(button_count[i]>DEBOUNCE_ON)
{
if(button_status[i] == 0)
{
button_flag[i] = 1;
button_status[i] = 1; //button debounced to 'pressed' status
}
}
}
}
else // no button pressed
{
if (button_count[i] >0)
{
button_flag[i] = 0;
button_count[i]--;
if(button_count[i]<DEBOUNCE_OFF){
button_status[i]=0; //button debounced to 'released' status
}
}
}
}
}
// Timer2 interrupt routine -
// 1/(160000000/256/(256-6)) = 4ms interval
ISR(TIMER2_OVF_vect) {
TCNT2 = 6;
update_adc_key();
}
程序效果
視頻演示
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