基于Arduino ATmega328人脸识别IOT演示开关
Posted 卓晴
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了基于Arduino ATmega328人脸识别IOT演示开关相关的知识，希望对你有一定的参考价值。
§01 Arduino ATmega328 测试电路
根据 Arduino门禁人机接口调试 Version 1.0 基于Groove Beginner的背板的设计基础上，按照 从0 开始 DIY你的Arduino UNO 设计方法，将ATmega328直接与接口电路设计成一个单一的电路板，便可以大大简化系统的构成了。
1、电路设计
▲ 图1-1 最小系统原理图
▲ 图1-2 ESP8266子系统电路
▲ 图1-3 接口电路
▲ 图1-4 USB下载电路接口
2、接口说明
根据下图所示的Arduino管脚的定义，结合前面的原理图设计，可以分别确定按键，LED模块，舵机，语音模块，人脸模块，ESP8266模块的接口。
▲ 图2-1 Arduino 管脚定义
（1）按键接口
按键的行扫描与列扫描分别使用 D4，D5，D6，D7，D8，D9，D18，D19。键盘的读取参考程序参见：
/*
**==============================================================================
** TESTKEY.C: -- by Dr. ZhuoQing, 2021-05-25
**
**==============================================================================
*/
//------------------------------------------------------------------------------
#define KEYLINE_1 4
#define KEYLINE_2 5
#define KEYLINE_3 6
#define KEYLINE_4 7
#define KEYCODE_1 8
#define KEYCODE_2 9
#define KEYCODE_3 18
#define KEYCODE_4 19
#define KEY_NULL 0xff
#define KEY_1 0x47
#define KEY_2 0x4B
#define KEY_3 0x4D
#define KEY_4 0x37
#define KEY_5 0x3B
#define KEY_6 0x3D
#define KEY_7 0x27
#define KEY_8 0x2B
#define KEY_9 0x2D
#define KEY_0 0x17
#define KEY_A 0x4E
#define KEY_B 0x3E
#define KEY_C 0x2E
#define KEY_D 0x1E
#define KEY_E 0x1D
#define KEY_F 0x1B
void keyLineSet(unsigned char ucLine) {
if(ucLine & 0x1) digitalWrite(KEYLINE_1, HIGH);
else digitalWrite(KEYLINE_1, LOW);
if(ucLine & 0x2) digitalWrite(KEYLINE_2, HIGH);
else digitalWrite(KEYLINE_2, LOW);
if(ucLine & 0x4) digitalWrite(KEYLINE_3, HIGH);
else digitalWrite(KEYLINE_3, LOW);
if(ucLine & 0x8) digitalWrite(KEYLINE_4, HIGH);
else digitalWrite(KEYLINE_4, LOW);
}
void keySetup(void) {
pinMode(KEYLINE_1, OUTPUT);
pinMode(KEYLINE_2, OUTPUT);
pinMode(KEYLINE_3, OUTPUT);
pinMode(KEYLINE_4, OUTPUT);
pinMode(KEYCODE_1, INPUT_PULLUP);
pinMode(KEYCODE_2, INPUT_PULLUP);
pinMode(KEYCODE_3, INPUT_PULLUP);
pinMode(KEYCODE_4, INPUT_PULLUP);
keyLineSet(0x0);
}
unsigned char keyReadCode(void) {
keyLineSet(0xe);
if(keyCode() != 0xf) return 0x10 | keyCode();
keyLineSet(0xd);
if(keyCode() != 0xf) return 0x20 | keyCode();
keyLineSet(0xb);
if(keyCode() != 0xf) return 0x30 | keyCode();
keyLineSet(0x7);
if(keyCode() != 0xf) return 0x40 | keyCode();
return 0xff;
}
unsigned char keyCode(void) {
unsigned char ucCode;
ucCode = 0x0;
if(digitalRead(KEYCODE_1) == HIGH) ucCode |= 0x1;
if(digitalRead(KEYCODE_2) == HIGH) ucCode |= 0x2;
if(digitalRead(KEYCODE_3) == HIGH) ucCode |= 0x4;
if(digitalRead(KEYCODE_4) == HIGH) ucCode |= 0x8;
return ucCode;
}
//------------------------------------------------------------------------------
unsigned char Hex2Text(unsigned char ucCode) {
if(ucCode < 10) {
return '0' + ucCode;
}
return 'A' + ucCode - 10;
}
void SendHEX8(unsigned char ucCode) {
Serial.write(Hex2Text(ucCode >> 4));
Serial.write(Hex2Text(ucCode & 0xf));
}
//------------------------------------------------------------------------------
void setup(void) {
Serial.begin(115200);
keySetup();
}
//------------------------------------------------------------------------------
void loop(void) {
delay(250);
SendHEX8(keyReadCode());
Serial.write("\\r\\n");
}
//==============================================================================
// END OF THE FILE : TESTKEY.C
//------------------------------------------------------------------------------
（2）点阵LED模块接口
控制点阵LED模块的四个IO口分别为 D14，D15，D16，D17。
对于LED模块控制参考程序为：
/*
**==============================================================================
** TESTLED.C: -- by Dr. ZhuoQing, 2021-05-25
**
**==============================================================================
*/
#define LED_DATA1 14
#define LED_DATA2 15
#define LED_CLK1 16
#define LED_CLK2 17
//------------------------------------------------------------------------------
unsigned char g_ucLEDBuffer[4][16];
void ledSetup(void) {
int i, j;
for(i = 0; i < 4; i ++) {
for(j = 0; j < 16; j ++) {
g_ucLEDBuffer[i][j] = 0x0;
}
}
pinMode(LED_DATA1, OUTPUT);
pinMode(LED_DATA2, OUTPUT);
pinMode(LED_CLK1, OUTPUT);
pinMode(LED_CLK2, OUTPUT);
digitalWrite(LED_CLK1, HIGH);
digitalWrite(LED_CLK2, HIGH);
digitalWrite(LED_DATA1, HIGH);
digitalWrite(LED_DATA2, HIGH);
}
void ledSetData12(unsigned char ucData12) {
if(ucData12 & 0x1)
digitalWrite(LED_DATA1, HIGH);
else digitalWrite(LED_DATA1, LOW);
if(ucData12 & 0x2)
digitalWrite(LED_DATA2, HIGH);
else digitalWrite(LED_DATA2, LOW);
}
void ledClock1(void) {
digitalWrite(LED_CLK1, HIGH); // clock up 7us
digitalWrite(LED_CLK1, LOW);
}
void ledClock2(void) {
digitalWrite(LED_CLK2, HIGH);
digitalWrite(LED_CLK2, LOW);
}
void ledStart(void) {
digitalWrite(LED_DATA1, LOW);
digitalWrite(LED_DATA2, LOW);
digitalWrite(LED_CLK1, LOW);
digitalWrite(LED_CLK2, LOW);
}
void ledStop(void) {
digitalWrite(LED_DATA1, LOW);
digitalWrite(LED_DATA2, LOW);
digitalWrite(LED_CLK1, HIGH);
digitalWrite(LED_CLK2, HIGH);
digitalWrite(LED_DATA1, HIGH);
digitalWrite(LED_DATA2, HIGH);
}
void ledWriteData(unsigned char ucChar1, unsigned char ucChar2,
unsigned char ucChar3, unsigned char ucChar4) {
unsigned char i;
unsigned char ucMask;
ucMask = 0x1;
for(i = 0; i < 8; i++) {
if(ucChar1 & ucMask) digitalWrite(LED_DATA1, HIGH);
else digitalWrite(LED_DATA1, LOW);
if(ucChar2 & ucMask) digitalWrite(LED_DATA2, HIGH);
else digitalWrite(LED_DATA2, LOW);
digitalWrite(LED_CLK1, HIGH); // clock up 7us
digitalWrite(LED_CLK1, LOW);
if(ucChar3 & ucMask) digitalWrite(LED_DATA1, HIGH);
else digitalWrite(LED_DATA1, LOW);
if(ucChar4 & ucMask) digitalWrite(LED_DATA2, HIGH);
else digitalWrite(LED_DATA2, LOW);
digitalWrite(LED_CLK2, HIGH); // clock up 7us
digitalWrite(LED_CLK2, LOW);
ucMask = ucMask << 1;
}
}
//------------------------------------------------------------------------------
#define LEDCMD_ADD_INC 0x40
#define LEDCMD_ADD_SET 0x44
#define LEDCMD_MODE_CLOSE 0x80
#define LEDCMD_MODE_OPEN 0x8a
//-------------------------------------------------------以上是关于基于Arduino ATmega328人脸识别IOT演示开关的主要内容，如果未能解决你的问题，请参考以下文章
Arduino Uno微控制器采用的是Atmel的ATmega328
基于ATMEGA8的Arduino Nano（UNO）开发板
我在将arduino网络中实现Atmega328计时器时遇到问题