内容简介:Arduino uno 驱动Nokia5110显示屏
在 树莓派使用Nokia5110显示屏显示系统信息 中,学习了使用树莓派驱动Nokia5110显示屏。本篇文章教大家用Arduino驱动Nokia5110显示屏。
一、硬件连接
#define PIN_SCE 7
#define PIN_RESET 6
#define PIN_DC 5
#define PIN_SDIN 4
#define PIN_SCLK 3
VCC 3.3V
Gng 地
BL 5V
在BL和5V之间连接不用加入其他的电阻和电容,经过我的测试,直接连接就可以了。
二、下载Nokia5110驱动库
1、下载 Arduino Nokia5 110 驱动库.(科技爱好者博客下载:pcd8544-master)
2、打开Arduino IDE
3、“项目” – “加载库” -” 添加一个.zip库”。
三、运行程序
选择File > Examples > PCD8544 > HelloWorld打开Nokia 5110屏幕测试程序。编译下载即可看到显示的信息。
四、Hello Word程序代码
/* * PCD8544 - Interface with Philips PCD8544 (or compatible) LCDs. * * Copyright (c) 2010 Carlos Rodrigues <cefrodrigues@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ /* * To use this sketch, connect the eight pins from your LCD like thus: * * Pin 1 -> +3.3V (rightmost, when facing the display head-on) * Pin 2 -> Arduino digital pin 3 * Pin 3 -> Arduino digital pin 4 * Pin 4 -> Arduino digital pin 5 * Pin 5 -> Arduino digital pin 7 * Pin 6 -> Ground * Pin 7 -> 10uF capacitor -> Ground * Pin 8 -> Arduino digital pin 6 * * Since these LCDs are +3.3V devices, you have to add extra components to * connect it to the digital pins of the Arduino (not necessary if you are * using a 3.3V variant of the Arduino, such as Sparkfun's Arduino Pro). */ #include // A custom glyph (a smiley)... static const byte glyph[] = { B00010000, B00110100, B00110000, B00110100, B00010000 }; static PCD8544 lcd; void setup() { // PCD8544-compatible displays may have a different resolution... lcd.begin(84, 48); // Add the smiley to position "0" of the ASCII table... lcd.createChar(0, glyph); } void loop() { // Just to show the program is alive... static int counter = 0; // Write a piece of text on the first line... lcd.setCursor(0, 0); lcd.print("Hello, World!"); lcd.setCursor(0, 1); lcd.print("Blog.lxx1.com"); // Write the counter on the second line... lcd.setCursor(0, 3 ); lcd.print(counter, DEC); lcd.write(' '); lcd.write(0); // write the smiley // Use a potentiometer to set the LCD contrast... // short level = map(analogRead(A0), 0, 1023, 0, 127); // lcd.setContrast(level); delay(100); counter+=1; } /* EOF - HelloWorld.ino */
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