w mx
/
sensors3
sr501/BH1750/mq-2/dht11
Fork of sensors_2 by
sensors.cpp@4:fe1e9f9c7b33, 2018-10-18 (annotated)
- Committer:
- xmwmx
- Date:
- Thu Oct 18 16:23:13 2018 +0000
- Revision:
- 4:fe1e9f9c7b33
- Parent:
- 3:31aec950f7dc
9 kinds of sensors
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Dennis_Yu | 0:6dca851b4779 | 1 | #include "sensors.h" |
Dennis_Yu | 0:6dca851b4779 | 2 | #include "mbed.h" |
Dennis_Yu | 0:6dca851b4779 | 3 | |
xmwmx | 1:1197997ae0ea | 4 | extern Serial usb2pc; |
xmwmx | 1:1197997ae0ea | 5 | extern DigitalOut myled; |
xmwmx | 4:fe1e9f9c7b33 | 6 | //============================================================SR501 |
xmwmx | 1:1197997ae0ea | 7 | void sr501::triggered() //触发中断!! |
Dennis_Yu | 0:6dca851b4779 | 8 | { |
xmwmx | 1:1197997ae0ea | 9 | usb2pc.printf("sr501 Triggered!\r\n"); |
Dennis_Yu | 0:6dca851b4779 | 10 | status = true; |
Dennis_Yu | 0:6dca851b4779 | 11 | } |
xmwmx | 1:1197997ae0ea | 12 | //-------- |
xmwmx | 1:1197997ae0ea | 13 | sr501::sr501(PinName pSignal) //启动热释电!!! |
xmwmx | 2:cd0ea77c7d66 | 14 | : status(false), signal(pSignal) |
Dennis_Yu | 0:6dca851b4779 | 15 | { |
xmwmx | 2:cd0ea77c7d66 | 16 | signal.rise(this, &sr501::triggered); |
xmwmx | 1:1197997ae0ea | 17 | usb2pc.printf("sr501 start!\r\n"); |
Dennis_Yu | 0:6dca851b4779 | 18 | } |
xmwmx | 1:1197997ae0ea | 19 | //------- |
xmwmx | 1:1197997ae0ea | 20 | bool sr501::operator==(const bool &target) |
Dennis_Yu | 0:6dca851b4779 | 21 | { |
Dennis_Yu | 0:6dca851b4779 | 22 | if(status == target) |
xmwmx | 1:1197997ae0ea | 23 | { |
Dennis_Yu | 0:6dca851b4779 | 24 | return true; |
xmwmx | 1:1197997ae0ea | 25 | } |
Dennis_Yu | 0:6dca851b4779 | 26 | else |
xmwmx | 1:1197997ae0ea | 27 | { |
Dennis_Yu | 0:6dca851b4779 | 28 | return false; |
xmwmx | 1:1197997ae0ea | 29 | } |
Dennis_Yu | 0:6dca851b4779 | 30 | } |
xmwmx | 1:1197997ae0ea | 31 | //------- |
Dennis_Yu | 0:6dca851b4779 | 32 | void sr501::reset() |
Dennis_Yu | 0:6dca851b4779 | 33 | { |
Dennis_Yu | 0:6dca851b4779 | 34 | status = false; |
Dennis_Yu | 0:6dca851b4779 | 35 | } |
xmwmx | 1:1197997ae0ea | 36 | //------- |
xmwmx | 1:1197997ae0ea | 37 | int sr501::read() |
xmwmx | 1:1197997ae0ea | 38 | { |
xmwmx | 2:cd0ea77c7d66 | 39 | return signal.read(); |
xmwmx | 1:1197997ae0ea | 40 | } |
xmwmx | 4:fe1e9f9c7b33 | 41 | //========================================== //BH1750 |
xmwmx | 1:1197997ae0ea | 42 | BH1750::BH1750(PinName sda,PinName scl) //启动光强!!!!!(默认设置) |
xmwmx | 1:1197997ae0ea | 43 | :link(sda,scl) |
xmwmx | 1:1197997ae0ea | 44 | { |
xmwmx | 1:1197997ae0ea | 45 | status = true; |
xmwmx | 1:1197997ae0ea | 46 | char mode[1]={BH1750_CONTINUOUS_HIGH_RES_MODE}; |
xmwmx | 2:cd0ea77c7d66 | 47 | //usb2pc.printf("modifying\r\n"); |
xmwmx | 1:1197997ae0ea | 48 | while(status) |
xmwmx | 1:1197997ae0ea | 49 | { |
xmwmx | 1:1197997ae0ea | 50 | status = link.write(BH1750_I2CADDR, mode, sizeof(mode), false); |
xmwmx | 1:1197997ae0ea | 51 | wait_ms(10); |
xmwmx | 1:1197997ae0ea | 52 | } |
xmwmx | 1:1197997ae0ea | 53 | usb2pc.printf("BH1750 start with default mode!\r\n"); |
xmwmx | 1:1197997ae0ea | 54 | } |
xmwmx | 1:1197997ae0ea | 55 | //-------- |
xmwmx | 1:1197997ae0ea | 56 | BH1750::BH1750(PinName sda,PinName scl,char mode[]) //启动光强!!!!!(自定义设置) |
xmwmx | 1:1197997ae0ea | 57 | :link(sda,scl) |
xmwmx | 1:1197997ae0ea | 58 | { |
xmwmx | 1:1197997ae0ea | 59 | status = true; |
xmwmx | 1:1197997ae0ea | 60 | while(status) |
xmwmx | 1:1197997ae0ea | 61 | { |
xmwmx | 1:1197997ae0ea | 62 | status = link.write(BH1750_I2CADDR, mode, sizeof(mode), false); |
xmwmx | 1:1197997ae0ea | 63 | wait_ms(10); |
xmwmx | 1:1197997ae0ea | 64 | } |
xmwmx | 1:1197997ae0ea | 65 | usb2pc.printf("BH1750 start with customize mode!\r\n"); |
xmwmx | 1:1197997ae0ea | 66 | } |
xmwmx | 1:1197997ae0ea | 67 | //-------- |
xmwmx | 1:1197997ae0ea | 68 | float BH1750::getlightdata() //读取光强(lux) |
xmwmx | 1:1197997ae0ea | 69 | { |
xmwmx | 1:1197997ae0ea | 70 | status = true; |
xmwmx | 1:1197997ae0ea | 71 | status = link.read(BH1750_I2CADDR, rawdata, 2, false); |
xmwmx | 1:1197997ae0ea | 72 | if(!status) |
xmwmx | 1:1197997ae0ea | 73 | { |
xmwmx | 1:1197997ae0ea | 74 | float result = ((rawdata[0]<<8)|rawdata[1])/1.2; |
xmwmx | 1:1197997ae0ea | 75 | return result; |
xmwmx | 1:1197997ae0ea | 76 | } |
xmwmx | 1:1197997ae0ea | 77 | else |
xmwmx | 1:1197997ae0ea | 78 | { |
xmwmx | 1:1197997ae0ea | 79 | usb2pc.printf("BH1750 read fail!\r\n"); |
xmwmx | 1:1197997ae0ea | 80 | return -1; |
xmwmx | 1:1197997ae0ea | 81 | } |
xmwmx | 2:cd0ea77c7d66 | 82 | } |
xmwmx | 4:fe1e9f9c7b33 | 83 | //==============================================MQ-2 |
xmwmx | 2:cd0ea77c7d66 | 84 | mq::mq(PinName dio) |
xmwmx | 2:cd0ea77c7d66 | 85 | : status(false), signal(dio),signallevel(PC_13) |
xmwmx | 2:cd0ea77c7d66 | 86 | { |
xmwmx | 2:cd0ea77c7d66 | 87 | signal.fall(this, &mq::triggered); |
xmwmx | 2:cd0ea77c7d66 | 88 | usb2pc.printf("mq start!\r\n"); |
xmwmx | 2:cd0ea77c7d66 | 89 | } |
xmwmx | 2:cd0ea77c7d66 | 90 | //-------- |
xmwmx | 2:cd0ea77c7d66 | 91 | mq::mq(PinName dio,PinName aio) |
xmwmx | 2:cd0ea77c7d66 | 92 | : status(false), signal(dio),signallevel(aio) |
xmwmx | 2:cd0ea77c7d66 | 93 | { |
xmwmx | 2:cd0ea77c7d66 | 94 | signal.fall(this, &mq::triggered); |
xmwmx | 2:cd0ea77c7d66 | 95 | usb2pc.printf("mq start!\r\n"); |
xmwmx | 2:cd0ea77c7d66 | 96 | } |
xmwmx | 2:cd0ea77c7d66 | 97 | //-------- |
xmwmx | 2:cd0ea77c7d66 | 98 | void mq::triggered() //触发中断!! |
xmwmx | 2:cd0ea77c7d66 | 99 | { |
xmwmx | 2:cd0ea77c7d66 | 100 | usb2pc.printf("mq Triggered!\r\n"); |
xmwmx | 2:cd0ea77c7d66 | 101 | status = true; |
xmwmx | 2:cd0ea77c7d66 | 102 | } |
xmwmx | 2:cd0ea77c7d66 | 103 | //-------- |
xmwmx | 2:cd0ea77c7d66 | 104 | bool mq::operator==(const bool &target) |
xmwmx | 2:cd0ea77c7d66 | 105 | { |
xmwmx | 2:cd0ea77c7d66 | 106 | if(status == target) |
xmwmx | 2:cd0ea77c7d66 | 107 | { |
xmwmx | 2:cd0ea77c7d66 | 108 | return true; |
xmwmx | 2:cd0ea77c7d66 | 109 | } |
xmwmx | 2:cd0ea77c7d66 | 110 | else |
xmwmx | 2:cd0ea77c7d66 | 111 | { |
xmwmx | 2:cd0ea77c7d66 | 112 | return false; |
xmwmx | 2:cd0ea77c7d66 | 113 | } |
xmwmx | 2:cd0ea77c7d66 | 114 | } |
xmwmx | 2:cd0ea77c7d66 | 115 | //-------- |
xmwmx | 2:cd0ea77c7d66 | 116 | float mq::getairdata() |
xmwmx | 2:cd0ea77c7d66 | 117 | { |
xmwmx | 3:31aec950f7dc | 118 | return signallevel.read(); |
xmwmx | 2:cd0ea77c7d66 | 119 | } |
xmwmx | 2:cd0ea77c7d66 | 120 | //----------- |
xmwmx | 2:cd0ea77c7d66 | 121 | void mq::reset() |
xmwmx | 2:cd0ea77c7d66 | 122 | { |
xmwmx | 2:cd0ea77c7d66 | 123 | status = false; |
xmwmx | 2:cd0ea77c7d66 | 124 | } |
xmwmx | 2:cd0ea77c7d66 | 125 | int mq::read() |
xmwmx | 2:cd0ea77c7d66 | 126 | { |
xmwmx | 2:cd0ea77c7d66 | 127 | return signal.read(); |
xmwmx | 3:31aec950f7dc | 128 | } |
xmwmx | 4:fe1e9f9c7b33 | 129 | //===========================================DHT11 |
xmwmx | 3:31aec950f7dc | 130 | dht11::dht11(PinName pin) |
xmwmx | 3:31aec950f7dc | 131 | :datapin(pin) |
xmwmx | 3:31aec950f7dc | 132 | { |
xmwmx | 3:31aec950f7dc | 133 | starttime.start(); |
xmwmx | 3:31aec950f7dc | 134 | usb2pc.printf("dht11 start!\r\n"); |
xmwmx | 3:31aec950f7dc | 135 | } |
xmwmx | 3:31aec950f7dc | 136 | //---------- |
xmwmx | 3:31aec950f7dc | 137 | int dht11::getdata() |
xmwmx | 3:31aec950f7dc | 138 | { |
xmwmx | 3:31aec950f7dc | 139 | int timeout=10000; |
xmwmx | 3:31aec950f7dc | 140 | uint8_t data[5]; |
xmwmx | 3:31aec950f7dc | 141 | uint8_t bit=7; |
xmwmx | 3:31aec950f7dc | 142 | uint8_t count=0; |
xmwmx | 3:31aec950f7dc | 143 | |
xmwmx | 3:31aec950f7dc | 144 | for(int i=0;i<5;i++) |
xmwmx | 3:31aec950f7dc | 145 | { |
xmwmx | 3:31aec950f7dc | 146 | data[i]=0; |
xmwmx | 3:31aec950f7dc | 147 | } |
xmwmx | 3:31aec950f7dc | 148 | if(starttime.read_ms()<1500){while(starttime.read_ms()<1500){}starttime.stop();} |
xmwmx | 3:31aec950f7dc | 149 | |
xmwmx | 3:31aec950f7dc | 150 | datapin.output(); |
xmwmx | 3:31aec950f7dc | 151 | datapin=0; |
xmwmx | 3:31aec950f7dc | 152 | wait_ms(19); |
xmwmx | 3:31aec950f7dc | 153 | datapin=1; |
xmwmx | 3:31aec950f7dc | 154 | wait_us(30); |
xmwmx | 3:31aec950f7dc | 155 | datapin.input(); |
xmwmx | 3:31aec950f7dc | 156 | |
xmwmx | 3:31aec950f7dc | 157 | while(!datapin) |
xmwmx | 3:31aec950f7dc | 158 | { |
xmwmx | 3:31aec950f7dc | 159 | if(timeout--==0){usb2pc.printf("timeout!no reset\r\n");return 0;} |
xmwmx | 3:31aec950f7dc | 160 | } |
xmwmx | 3:31aec950f7dc | 161 | timeout=10000; |
xmwmx | 3:31aec950f7dc | 162 | while(datapin) |
xmwmx | 3:31aec950f7dc | 163 | { |
xmwmx | 3:31aec950f7dc | 164 | if(timeout--==0){usb2pc.printf("timeout!no respanse\r\n");return 0;} |
xmwmx | 3:31aec950f7dc | 165 | } |
xmwmx | 3:31aec950f7dc | 166 | timeout=10000; |
xmwmx | 3:31aec950f7dc | 167 | for(int i=0;i<40;i++) |
xmwmx | 3:31aec950f7dc | 168 | { |
xmwmx | 3:31aec950f7dc | 169 | while(!datapin) |
xmwmx | 3:31aec950f7dc | 170 | { |
xmwmx | 3:31aec950f7dc | 171 | if(timeout--==0){usb2pc.printf("timeout!\r\n");return 0;} |
xmwmx | 3:31aec950f7dc | 172 | } |
xmwmx | 3:31aec950f7dc | 173 | timer.start(); |
xmwmx | 3:31aec950f7dc | 174 | timeout=10000; |
xmwmx | 3:31aec950f7dc | 175 | while(datapin) |
xmwmx | 3:31aec950f7dc | 176 | { |
xmwmx | 3:31aec950f7dc | 177 | if(timeout--==0){usb2pc.printf("timeout!n\r\n");return 0;} |
xmwmx | 3:31aec950f7dc | 178 | } |
xmwmx | 3:31aec950f7dc | 179 | timeout=10000; |
xmwmx | 3:31aec950f7dc | 180 | long t=timer.read_us(); |
xmwmx | 3:31aec950f7dc | 181 | timer.stop(); |
xmwmx | 3:31aec950f7dc | 182 | timer.reset(); |
xmwmx | 3:31aec950f7dc | 183 | |
xmwmx | 3:31aec950f7dc | 184 | if(bit==0) |
xmwmx | 3:31aec950f7dc | 185 | { |
xmwmx | 3:31aec950f7dc | 186 | if(t>40){data[count]|=(1<<bit);} |
xmwmx | 3:31aec950f7dc | 187 | bit=7; |
xmwmx | 3:31aec950f7dc | 188 | count++; |
xmwmx | 3:31aec950f7dc | 189 | } |
xmwmx | 3:31aec950f7dc | 190 | else |
xmwmx | 3:31aec950f7dc | 191 | { |
xmwmx | 3:31aec950f7dc | 192 | if(t>40) |
xmwmx | 3:31aec950f7dc | 193 | { |
xmwmx | 3:31aec950f7dc | 194 | data[count]|=(1<<bit); |
xmwmx | 3:31aec950f7dc | 195 | } |
xmwmx | 3:31aec950f7dc | 196 | bit--; |
xmwmx | 3:31aec950f7dc | 197 | } |
xmwmx | 3:31aec950f7dc | 198 | } |
xmwmx | 3:31aec950f7dc | 199 | datapin=1; |
xmwmx | 3:31aec950f7dc | 200 | if(data[4]==data[0]+data[1]+data[2]+data[3]) |
xmwmx | 3:31aec950f7dc | 201 | { |
xmwmx | 3:31aec950f7dc | 202 | //usb2pc.printf("Humidity (%):%f\r\n",(float)data[0]); |
xmwmx | 3:31aec950f7dc | 203 | //usb2pc.printf("Temperature (oC): %f\r\n",(float)data[2]); |
xmwmx | 3:31aec950f7dc | 204 | H=data[0]+data[1]/10.0; |
xmwmx | 3:31aec950f7dc | 205 | T=data[2]+data[3]/10.0; |
xmwmx | 3:31aec950f7dc | 206 | return 1; |
xmwmx | 3:31aec950f7dc | 207 | } |
xmwmx | 3:31aec950f7dc | 208 | else{usb2pc.printf("error!\r\ndata0:%d\tdata1:%d\r\ndata2:%d\tdata3:%d\r\ndata4:%d\r\n",(int)data[0],(int)data[1],(int)data[2],(int)data[3],(int)data[4]);return 0;} |
xmwmx | 3:31aec950f7dc | 209 | } |
xmwmx | 3:31aec950f7dc | 210 | //------- |
xmwmx | 3:31aec950f7dc | 211 | float dht11::gethumidity() |
xmwmx | 3:31aec950f7dc | 212 | { |
xmwmx | 3:31aec950f7dc | 213 | return H; |
xmwmx | 3:31aec950f7dc | 214 | } |
xmwmx | 3:31aec950f7dc | 215 | //------- |
xmwmx | 3:31aec950f7dc | 216 | float dht11::gettemperature() |
xmwmx | 3:31aec950f7dc | 217 | { |
xmwmx | 3:31aec950f7dc | 218 | return T; |
xmwmx | 4:fe1e9f9c7b33 | 219 | } |
xmwmx | 4:fe1e9f9c7b33 | 220 | //============================================DS18B20 |
xmwmx | 4:fe1e9f9c7b33 | 221 | DS18B20::DS18B20(PinName pin) |
xmwmx | 4:fe1e9f9c7b33 | 222 | :datapin(pin) |
xmwmx | 4:fe1e9f9c7b33 | 223 | { |
xmwmx | 4:fe1e9f9c7b33 | 224 | if(start()){usb2pc.printf("DS18B20 started\r\n");} |
xmwmx | 4:fe1e9f9c7b33 | 225 | } |
xmwmx | 4:fe1e9f9c7b33 | 226 | //----------- |
xmwmx | 4:fe1e9f9c7b33 | 227 | int DS18B20::start() |
xmwmx | 4:fe1e9f9c7b33 | 228 | { |
xmwmx | 4:fe1e9f9c7b33 | 229 | //usb2pc.printf("starting\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 230 | datapin.output(); |
xmwmx | 4:fe1e9f9c7b33 | 231 | datapin=0; |
xmwmx | 4:fe1e9f9c7b33 | 232 | wait_us(600); |
xmwmx | 4:fe1e9f9c7b33 | 233 | datapin.input(); |
xmwmx | 4:fe1e9f9c7b33 | 234 | datapin.mode(PullUp); |
xmwmx | 4:fe1e9f9c7b33 | 235 | wait_us(70); |
xmwmx | 4:fe1e9f9c7b33 | 236 | while(datapin.read()){return 0;} |
xmwmx | 4:fe1e9f9c7b33 | 237 | //usb2pc.printf("started\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 238 | wait_us(250); |
xmwmx | 4:fe1e9f9c7b33 | 239 | return 1; |
xmwmx | 4:fe1e9f9c7b33 | 240 | } |
xmwmx | 4:fe1e9f9c7b33 | 241 | //---------- |
xmwmx | 4:fe1e9f9c7b33 | 242 | void DS18B20::writebyte(uint8_t send) |
xmwmx | 4:fe1e9f9c7b33 | 243 | { |
xmwmx | 4:fe1e9f9c7b33 | 244 | datapin.output(); |
xmwmx | 4:fe1e9f9c7b33 | 245 | datapin=1; |
xmwmx | 4:fe1e9f9c7b33 | 246 | wait_us(20); |
xmwmx | 4:fe1e9f9c7b33 | 247 | for(int i=0;i<8;i++) |
xmwmx | 4:fe1e9f9c7b33 | 248 | { |
xmwmx | 4:fe1e9f9c7b33 | 249 | datapin.output(); |
xmwmx | 4:fe1e9f9c7b33 | 250 | datapin=0; //产生读写时序的起始信号 |
xmwmx | 4:fe1e9f9c7b33 | 251 | wait_us(2); //要求至少1us的延时 |
xmwmx | 4:fe1e9f9c7b33 | 252 | datapin=send & 0x01; //对总线赋值,从最低位开始写起 |
xmwmx | 4:fe1e9f9c7b33 | 253 | wait_us(70);//延时70us,写0在60~120us之间释放,写1的话大于60us均可释放 |
xmwmx | 4:fe1e9f9c7b33 | 254 | datapin=1; //释放总线,为下一次mcu送数据做准备, |
xmwmx | 4:fe1e9f9c7b33 | 255 | send>>=1; //有效数据移动到最低位,2次写数据间隙至少需1us |
xmwmx | 4:fe1e9f9c7b33 | 256 | } |
xmwmx | 4:fe1e9f9c7b33 | 257 | datapin.output(); |
xmwmx | 4:fe1e9f9c7b33 | 258 | datapin=1; |
xmwmx | 4:fe1e9f9c7b33 | 259 | wait_us(70); |
xmwmx | 4:fe1e9f9c7b33 | 260 | } |
xmwmx | 4:fe1e9f9c7b33 | 261 | //----------- |
xmwmx | 4:fe1e9f9c7b33 | 262 | uint8_t DS18B20::readByte() //mcu读一个字节 |
xmwmx | 4:fe1e9f9c7b33 | 263 | { |
xmwmx | 4:fe1e9f9c7b33 | 264 | uint8_t i,value=0; |
xmwmx | 4:fe1e9f9c7b33 | 265 | for(i=0;i<8;i++) |
xmwmx | 4:fe1e9f9c7b33 | 266 | { |
xmwmx | 4:fe1e9f9c7b33 | 267 | datapin.output(); |
xmwmx | 4:fe1e9f9c7b33 | 268 | datapin=0; //起始信号 |
xmwmx | 4:fe1e9f9c7b33 | 269 | wait_us(2); |
xmwmx | 4:fe1e9f9c7b33 | 270 | datapin.input(); //mcu释放总线 |
xmwmx | 4:fe1e9f9c7b33 | 271 | datapin.mode(PullUp); |
xmwmx | 4:fe1e9f9c7b33 | 272 | if(datapin) |
xmwmx | 4:fe1e9f9c7b33 | 273 | { |
xmwmx | 4:fe1e9f9c7b33 | 274 | value=value|0x80;//保存高电平数据,低电平的话不用保存,移位后默认是0 |
xmwmx | 4:fe1e9f9c7b33 | 275 | } |
xmwmx | 4:fe1e9f9c7b33 | 276 | value>>=1; |
xmwmx | 4:fe1e9f9c7b33 | 277 | wait_us(30); //延时40us |
xmwmx | 4:fe1e9f9c7b33 | 278 | } |
xmwmx | 4:fe1e9f9c7b33 | 279 | return value; |
xmwmx | 4:fe1e9f9c7b33 | 280 | } |
xmwmx | 4:fe1e9f9c7b33 | 281 | //------------ |
xmwmx | 4:fe1e9f9c7b33 | 282 | float DS18B20::transfer(uint8_t h,uint8_t l) |
xmwmx | 4:fe1e9f9c7b33 | 283 | { |
xmwmx | 4:fe1e9f9c7b33 | 284 | //h=0x01; |
xmwmx | 4:fe1e9f9c7b33 | 285 | //l=0x01; |
xmwmx | 4:fe1e9f9c7b33 | 286 | int flag=(h&0x01)>>7; |
xmwmx | 4:fe1e9f9c7b33 | 287 | if(!flag) |
xmwmx | 4:fe1e9f9c7b33 | 288 | { |
xmwmx | 4:fe1e9f9c7b33 | 289 | float i=(h*256+l)*0.25; |
xmwmx | 4:fe1e9f9c7b33 | 290 | //usb2pc.printf("flag:%d\th:%d\tl:%d\r\n",flag,h,l); |
xmwmx | 4:fe1e9f9c7b33 | 291 | return i; |
xmwmx | 4:fe1e9f9c7b33 | 292 | } |
xmwmx | 4:fe1e9f9c7b33 | 293 | else |
xmwmx | 4:fe1e9f9c7b33 | 294 | { |
xmwmx | 4:fe1e9f9c7b33 | 295 | float i=((~h)*256+(~l))*0.25*-1; |
xmwmx | 4:fe1e9f9c7b33 | 296 | //usb2pc.printf("flag:%d\th:%d\tl:%d\r\n",flag,h,l); |
xmwmx | 4:fe1e9f9c7b33 | 297 | return i; |
xmwmx | 4:fe1e9f9c7b33 | 298 | } |
xmwmx | 4:fe1e9f9c7b33 | 299 | } |
xmwmx | 4:fe1e9f9c7b33 | 300 | //---------- |
xmwmx | 4:fe1e9f9c7b33 | 301 | int DS18B20::getdata() |
xmwmx | 4:fe1e9f9c7b33 | 302 | { |
xmwmx | 4:fe1e9f9c7b33 | 303 | T=5000; |
xmwmx | 4:fe1e9f9c7b33 | 304 | start(); |
xmwmx | 4:fe1e9f9c7b33 | 305 | writebyte(0xcc); |
xmwmx | 4:fe1e9f9c7b33 | 306 | writebyte(0x44); |
xmwmx | 4:fe1e9f9c7b33 | 307 | wait(2); |
xmwmx | 4:fe1e9f9c7b33 | 308 | |
xmwmx | 4:fe1e9f9c7b33 | 309 | start(); |
xmwmx | 4:fe1e9f9c7b33 | 310 | writebyte(0xcc); |
xmwmx | 4:fe1e9f9c7b33 | 311 | writebyte(0xbe); |
xmwmx | 4:fe1e9f9c7b33 | 312 | uint8_t a=readByte();//l |
xmwmx | 4:fe1e9f9c7b33 | 313 | uint8_t b=readByte();//h |
xmwmx | 4:fe1e9f9c7b33 | 314 | T=transfer(b,a); |
xmwmx | 4:fe1e9f9c7b33 | 315 | |
xmwmx | 4:fe1e9f9c7b33 | 316 | if(T==5000){return 0;} |
xmwmx | 4:fe1e9f9c7b33 | 317 | else{return 1;} |
xmwmx | 4:fe1e9f9c7b33 | 318 | } |
xmwmx | 4:fe1e9f9c7b33 | 319 | //---------- |
xmwmx | 4:fe1e9f9c7b33 | 320 | float DS18B20::gettemperature() |
xmwmx | 4:fe1e9f9c7b33 | 321 | { |
xmwmx | 4:fe1e9f9c7b33 | 322 | if(getdata()){return T;} |
xmwmx | 4:fe1e9f9c7b33 | 323 | else{usb2pc.printf("get temperature fail!\r\n");return 0;} |
xmwmx | 4:fe1e9f9c7b33 | 324 | } |
xmwmx | 4:fe1e9f9c7b33 | 325 | //==============================================YL-38 |
xmwmx | 4:fe1e9f9c7b33 | 326 | YL::YL(PinName dio) |
xmwmx | 4:fe1e9f9c7b33 | 327 | : status(false), signal(dio),signallevel(PC_13) |
xmwmx | 4:fe1e9f9c7b33 | 328 | { |
xmwmx | 4:fe1e9f9c7b33 | 329 | signal.fall(this, &YL::triggered); |
xmwmx | 4:fe1e9f9c7b33 | 330 | usb2pc.printf("YL start!\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 331 | } |
xmwmx | 4:fe1e9f9c7b33 | 332 | //-------- |
xmwmx | 4:fe1e9f9c7b33 | 333 | YL::YL(PinName dio,PinName aio) |
xmwmx | 4:fe1e9f9c7b33 | 334 | : status(false), signal(dio),signallevel(aio) |
xmwmx | 4:fe1e9f9c7b33 | 335 | { |
xmwmx | 4:fe1e9f9c7b33 | 336 | signal.fall(this, &YL::triggered); |
xmwmx | 4:fe1e9f9c7b33 | 337 | usb2pc.printf("YL start!\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 338 | } |
xmwmx | 4:fe1e9f9c7b33 | 339 | //-------- |
xmwmx | 4:fe1e9f9c7b33 | 340 | void YL::triggered() //触发中断!! |
xmwmx | 4:fe1e9f9c7b33 | 341 | { |
xmwmx | 4:fe1e9f9c7b33 | 342 | usb2pc.printf("YL Triggered!\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 343 | status = true; |
xmwmx | 4:fe1e9f9c7b33 | 344 | } |
xmwmx | 4:fe1e9f9c7b33 | 345 | //-------- |
xmwmx | 4:fe1e9f9c7b33 | 346 | bool YL::operator==(const bool &target) |
xmwmx | 4:fe1e9f9c7b33 | 347 | { |
xmwmx | 4:fe1e9f9c7b33 | 348 | if(status == target) |
xmwmx | 4:fe1e9f9c7b33 | 349 | { |
xmwmx | 4:fe1e9f9c7b33 | 350 | return true; |
xmwmx | 4:fe1e9f9c7b33 | 351 | } |
xmwmx | 4:fe1e9f9c7b33 | 352 | else |
xmwmx | 4:fe1e9f9c7b33 | 353 | { |
xmwmx | 4:fe1e9f9c7b33 | 354 | return false; |
xmwmx | 4:fe1e9f9c7b33 | 355 | } |
xmwmx | 4:fe1e9f9c7b33 | 356 | } |
xmwmx | 4:fe1e9f9c7b33 | 357 | //-------- |
xmwmx | 4:fe1e9f9c7b33 | 358 | float YL::getairdata() |
xmwmx | 4:fe1e9f9c7b33 | 359 | { |
xmwmx | 4:fe1e9f9c7b33 | 360 | return signallevel.read(); |
xmwmx | 4:fe1e9f9c7b33 | 361 | } |
xmwmx | 4:fe1e9f9c7b33 | 362 | //----------- |
xmwmx | 4:fe1e9f9c7b33 | 363 | void YL::reset() |
xmwmx | 4:fe1e9f9c7b33 | 364 | { |
xmwmx | 4:fe1e9f9c7b33 | 365 | status = false; |
xmwmx | 4:fe1e9f9c7b33 | 366 | } |
xmwmx | 4:fe1e9f9c7b33 | 367 | int YL::read() |
xmwmx | 4:fe1e9f9c7b33 | 368 | { |
xmwmx | 4:fe1e9f9c7b33 | 369 | return signal.read(); |
xmwmx | 4:fe1e9f9c7b33 | 370 | } |
xmwmx | 4:fe1e9f9c7b33 | 371 | //============================================= |
xmwmx | 4:fe1e9f9c7b33 | 372 | BMP180::BMP180(PinName sda,PinName scl) |
xmwmx | 4:fe1e9f9c7b33 | 373 | :i2c(sda,scl) |
xmwmx | 4:fe1e9f9c7b33 | 374 | { |
xmwmx | 4:fe1e9f9c7b33 | 375 | OSS=OSS_3; |
xmwmx | 4:fe1e9f9c7b33 | 376 | uint8_t c = readByte(BMP180_ADDRESS, BMP180_WHO_AM_I); |
xmwmx | 4:fe1e9f9c7b33 | 377 | if(c == 0x55) { |
xmwmx | 4:fe1e9f9c7b33 | 378 | |
xmwmx | 4:fe1e9f9c7b33 | 379 | usb2pc.printf("BMP-180 is 0x%x\r\n", c); |
xmwmx | 4:fe1e9f9c7b33 | 380 | usb2pc.printf("BMP-180 should be 0x55\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 381 | usb2pc.printf("BMP-180 online...\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 382 | |
xmwmx | 4:fe1e9f9c7b33 | 383 | BMP180Calibration(); |
xmwmx | 4:fe1e9f9c7b33 | 384 | usb2pc.printf("BMP-180 calibration complete...\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 385 | } |
xmwmx | 4:fe1e9f9c7b33 | 386 | else |
xmwmx | 4:fe1e9f9c7b33 | 387 | { |
xmwmx | 4:fe1e9f9c7b33 | 388 | usb2pc.printf("BMP-180 is 0x%x\r\n", c); |
xmwmx | 4:fe1e9f9c7b33 | 389 | usb2pc.printf("BMP-180 should be 0x55\r\n"); |
xmwmx | 4:fe1e9f9c7b33 | 390 | while(1); // idle here forever |
xmwmx | 4:fe1e9f9c7b33 | 391 | } |
xmwmx | 4:fe1e9f9c7b33 | 392 | } |
xmwmx | 4:fe1e9f9c7b33 | 393 | void BMP180::writeByte(uint8_t address, uint8_t subAddress, uint8_t data) |
xmwmx | 4:fe1e9f9c7b33 | 394 | { |
xmwmx | 4:fe1e9f9c7b33 | 395 | char data_write[2]; |
xmwmx | 4:fe1e9f9c7b33 | 396 | data_write[0] = subAddress; |
xmwmx | 4:fe1e9f9c7b33 | 397 | data_write[1] = data; |
xmwmx | 4:fe1e9f9c7b33 | 398 | i2c.write(address, data_write, 2, 0); |
xmwmx | 4:fe1e9f9c7b33 | 399 | } |
xmwmx | 4:fe1e9f9c7b33 | 400 | |
xmwmx | 4:fe1e9f9c7b33 | 401 | char BMP180::readByte(uint8_t address, uint8_t subAddress) |
xmwmx | 4:fe1e9f9c7b33 | 402 | { |
xmwmx | 4:fe1e9f9c7b33 | 403 | char data[1]; // `data` will store the register data |
xmwmx | 4:fe1e9f9c7b33 | 404 | char data_write[1]; |
xmwmx | 4:fe1e9f9c7b33 | 405 | data_write[0] = subAddress; |
xmwmx | 4:fe1e9f9c7b33 | 406 | i2c.write(address, data_write, 1, 1); // no stop |
xmwmx | 4:fe1e9f9c7b33 | 407 | i2c.read(address, data, 1, 0); |
xmwmx | 4:fe1e9f9c7b33 | 408 | return data[0]; |
xmwmx | 4:fe1e9f9c7b33 | 409 | } |
xmwmx | 4:fe1e9f9c7b33 | 410 | |
xmwmx | 4:fe1e9f9c7b33 | 411 | void BMP180::readBytes(uint8_t address, uint8_t subAddress, uint8_t count, uint8_t * dest) |
xmwmx | 4:fe1e9f9c7b33 | 412 | { |
xmwmx | 4:fe1e9f9c7b33 | 413 | char data[14]; |
xmwmx | 4:fe1e9f9c7b33 | 414 | char data_write[1]; |
xmwmx | 4:fe1e9f9c7b33 | 415 | data_write[0] = subAddress; |
xmwmx | 4:fe1e9f9c7b33 | 416 | i2c.write(address, data_write, 1, 1); // no stop |
xmwmx | 4:fe1e9f9c7b33 | 417 | i2c.read(address, data, count, 0); |
xmwmx | 4:fe1e9f9c7b33 | 418 | for(int ii = 0; ii < count; ii++) { |
xmwmx | 4:fe1e9f9c7b33 | 419 | dest[ii] = data[ii]; |
xmwmx | 4:fe1e9f9c7b33 | 420 | } |
xmwmx | 4:fe1e9f9c7b33 | 421 | } |
xmwmx | 4:fe1e9f9c7b33 | 422 | |
xmwmx | 4:fe1e9f9c7b33 | 423 | |
xmwmx | 4:fe1e9f9c7b33 | 424 | // Stores all of the BMP180's calibration values into global variables |
xmwmx | 4:fe1e9f9c7b33 | 425 | // Calibration values are required to calculate temp and pressure |
xmwmx | 4:fe1e9f9c7b33 | 426 | // This function should be called at the beginning of the program |
xmwmx | 4:fe1e9f9c7b33 | 427 | // These BMP-180 functions were adapted from Jim Lindblom of SparkFun Electronics |
xmwmx | 4:fe1e9f9c7b33 | 428 | void BMP180::BMP180Calibration() |
xmwmx | 4:fe1e9f9c7b33 | 429 | { |
xmwmx | 4:fe1e9f9c7b33 | 430 | ac1 = readByte(BMP180_ADDRESS, 0xAA) << 8 | readByte(BMP180_ADDRESS, 0xAB); |
xmwmx | 4:fe1e9f9c7b33 | 431 | ac2 = readByte(BMP180_ADDRESS, 0xAC) << 8 | readByte(BMP180_ADDRESS, 0xAD); |
xmwmx | 4:fe1e9f9c7b33 | 432 | ac3 = readByte(BMP180_ADDRESS, 0xAE) << 8 | readByte(BMP180_ADDRESS, 0xAF); |
xmwmx | 4:fe1e9f9c7b33 | 433 | ac4 = readByte(BMP180_ADDRESS, 0xB0) << 8 | readByte(BMP180_ADDRESS, 0xB1); |
xmwmx | 4:fe1e9f9c7b33 | 434 | ac5 = readByte(BMP180_ADDRESS, 0xB2) << 8 | readByte(BMP180_ADDRESS, 0xB3); |
xmwmx | 4:fe1e9f9c7b33 | 435 | ac6 = readByte(BMP180_ADDRESS, 0xB4) << 8 | readByte(BMP180_ADDRESS, 0xB5); |
xmwmx | 4:fe1e9f9c7b33 | 436 | b1 = readByte(BMP180_ADDRESS, 0xB6) << 8 | readByte(BMP180_ADDRESS, 0xB7); |
xmwmx | 4:fe1e9f9c7b33 | 437 | b2 = readByte(BMP180_ADDRESS, 0xB8) << 8 | readByte(BMP180_ADDRESS, 0xB9); |
xmwmx | 4:fe1e9f9c7b33 | 438 | mb = readByte(BMP180_ADDRESS, 0xBA) << 8 | readByte(BMP180_ADDRESS, 0xBB); |
xmwmx | 4:fe1e9f9c7b33 | 439 | mc = readByte(BMP180_ADDRESS, 0xBC) << 8 | readByte(BMP180_ADDRESS, 0xBD); |
xmwmx | 4:fe1e9f9c7b33 | 440 | md = readByte(BMP180_ADDRESS, 0xBE) << 8 | readByte(BMP180_ADDRESS, 0xBF); |
xmwmx | 4:fe1e9f9c7b33 | 441 | } |
xmwmx | 4:fe1e9f9c7b33 | 442 | |
xmwmx | 4:fe1e9f9c7b33 | 443 | // Temperature returned will be in units of 0.1 deg C |
xmwmx | 4:fe1e9f9c7b33 | 444 | long BMP180::BMP180GetTemperature() |
xmwmx | 4:fe1e9f9c7b33 | 445 | { |
xmwmx | 4:fe1e9f9c7b33 | 446 | long ut = 0; |
xmwmx | 4:fe1e9f9c7b33 | 447 | uint8_t rawData[2] = {0, 0}; |
xmwmx | 4:fe1e9f9c7b33 | 448 | |
xmwmx | 4:fe1e9f9c7b33 | 449 | writeByte(BMP180_ADDRESS, 0xF4, 0x2E); // start temperature measurement |
xmwmx | 4:fe1e9f9c7b33 | 450 | wait_ms(5); |
xmwmx | 4:fe1e9f9c7b33 | 451 | readBytes(BMP180_ADDRESS, 0xF6, 2, &rawData[0]); // read raw temperature measurement |
xmwmx | 4:fe1e9f9c7b33 | 452 | ut = rawData[0]*256+ rawData[1]; |
xmwmx | 4:fe1e9f9c7b33 | 453 | |
xmwmx | 4:fe1e9f9c7b33 | 454 | long x1, x2; |
xmwmx | 4:fe1e9f9c7b33 | 455 | |
xmwmx | 4:fe1e9f9c7b33 | 456 | x1 = (((long)ut - (long)ac6)*(long)ac5) >> 15; |
xmwmx | 4:fe1e9f9c7b33 | 457 | x2 = ((long)mc << 11)/(x1 + md); |
xmwmx | 4:fe1e9f9c7b33 | 458 | b5 = x1 + x2; |
xmwmx | 4:fe1e9f9c7b33 | 459 | |
xmwmx | 4:fe1e9f9c7b33 | 460 | return ((b5 + 8)>>4)/10.0; |
xmwmx | 4:fe1e9f9c7b33 | 461 | } |
xmwmx | 4:fe1e9f9c7b33 | 462 | |
xmwmx | 4:fe1e9f9c7b33 | 463 | // Calculate pressure read calibration values |
xmwmx | 4:fe1e9f9c7b33 | 464 | // b5 is also required so BMP180GetTemperature() must be called first. |
xmwmx | 4:fe1e9f9c7b33 | 465 | // Value returned will be pressure in units of Pa. |
xmwmx | 4:fe1e9f9c7b33 | 466 | long BMP180::BMP180GetPressure() |
xmwmx | 4:fe1e9f9c7b33 | 467 | { |
xmwmx | 4:fe1e9f9c7b33 | 468 | long up = 0; |
xmwmx | 4:fe1e9f9c7b33 | 469 | writeByte(BMP180_ADDRESS, 0xF4, 0x34 | OSS << 6); // Configure pressure measurement for highest resolution |
xmwmx | 4:fe1e9f9c7b33 | 470 | wait_ms(5+8*OSS); // delay 5 ms at lowest resolution, 29 ms at highest |
xmwmx | 4:fe1e9f9c7b33 | 471 | uint8_t rawData[3] = {0, 0, 0}; |
xmwmx | 4:fe1e9f9c7b33 | 472 | readBytes(BMP180_ADDRESS, 0xF6, 3, &rawData[0]); // read raw pressure measurement of 19 bits |
xmwmx | 4:fe1e9f9c7b33 | 473 | up = (((long) rawData[0] << 16) | ((long)rawData[1] << 8) | rawData[2]) >> (8 - OSS); |
xmwmx | 4:fe1e9f9c7b33 | 474 | |
xmwmx | 4:fe1e9f9c7b33 | 475 | long x1, x2, x3, b3, b6, p; |
xmwmx | 4:fe1e9f9c7b33 | 476 | unsigned long b4, b7; |
xmwmx | 4:fe1e9f9c7b33 | 477 | |
xmwmx | 4:fe1e9f9c7b33 | 478 | b6 = b5 - 4000; |
xmwmx | 4:fe1e9f9c7b33 | 479 | // Calculate B3 |
xmwmx | 4:fe1e9f9c7b33 | 480 | x1 = (b2 * (b6 * b6)>>12)>>11; |
xmwmx | 4:fe1e9f9c7b33 | 481 | x2 = (ac2 * b6)>>11; |
xmwmx | 4:fe1e9f9c7b33 | 482 | x3 = x1 + x2; |
xmwmx | 4:fe1e9f9c7b33 | 483 | b3 = (((((long)ac1)*4 + x3)<<OSS) + 2)>>2; |
xmwmx | 4:fe1e9f9c7b33 | 484 | |
xmwmx | 4:fe1e9f9c7b33 | 485 | // Calculate B4 |
xmwmx | 4:fe1e9f9c7b33 | 486 | x1 = (ac3 * b6)>>13; |
xmwmx | 4:fe1e9f9c7b33 | 487 | x2 = (b1 * ((b6 * b6)>>12))>>16; |
xmwmx | 4:fe1e9f9c7b33 | 488 | x3 = ((x1 + x2) + 2)>>2; |
xmwmx | 4:fe1e9f9c7b33 | 489 | b4 = (ac4 * (unsigned long)(x3 + 32768))>>15; |
xmwmx | 4:fe1e9f9c7b33 | 490 | |
xmwmx | 4:fe1e9f9c7b33 | 491 | b7 = ((unsigned long)(up - b3) * (50000>>OSS)); |
xmwmx | 4:fe1e9f9c7b33 | 492 | if (b7 < 0x80000000) |
xmwmx | 4:fe1e9f9c7b33 | 493 | p = (b7<<1)/b4; |
xmwmx | 4:fe1e9f9c7b33 | 494 | else |
xmwmx | 4:fe1e9f9c7b33 | 495 | p = (b7/b4)<<1; |
xmwmx | 4:fe1e9f9c7b33 | 496 | |
xmwmx | 4:fe1e9f9c7b33 | 497 | x1 = (p>>8) * (p>>8); |
xmwmx | 4:fe1e9f9c7b33 | 498 | x1 = (x1 * 3038)>>16; |
xmwmx | 4:fe1e9f9c7b33 | 499 | x2 = (-7357 * p)>>16; |
xmwmx | 4:fe1e9f9c7b33 | 500 | p += (x1 + x2 + 3791)>>4; |
xmwmx | 4:fe1e9f9c7b33 | 501 | |
xmwmx | 4:fe1e9f9c7b33 | 502 | return p; |
xmwmx | 4:fe1e9f9c7b33 | 503 | } |
xmwmx | 4:fe1e9f9c7b33 | 504 | //=============================== |
xmwmx | 4:fe1e9f9c7b33 | 505 | GP2Y1010::GP2Y1010(PinName led,PinName measure) |
xmwmx | 4:fe1e9f9c7b33 | 506 | :measurePin(measure),ledPower(led) |
xmwmx | 4:fe1e9f9c7b33 | 507 | { |
xmwmx | 4:fe1e9f9c7b33 | 508 | samplingTime = 280; |
xmwmx | 4:fe1e9f9c7b33 | 509 | deltaTime = 40; |
xmwmx | 4:fe1e9f9c7b33 | 510 | sleepTime = 9680; |
xmwmx | 4:fe1e9f9c7b33 | 511 | |
xmwmx | 4:fe1e9f9c7b33 | 512 | voMeasured = 0; |
xmwmx | 4:fe1e9f9c7b33 | 513 | calcVoltage = 0; |
xmwmx | 4:fe1e9f9c7b33 | 514 | dustDensity = 0; |
xmwmx | 4:fe1e9f9c7b33 | 515 | } |
xmwmx | 4:fe1e9f9c7b33 | 516 | |
xmwmx | 4:fe1e9f9c7b33 | 517 | float GP2Y1010::getairdata() |
xmwmx | 4:fe1e9f9c7b33 | 518 | { |
xmwmx | 4:fe1e9f9c7b33 | 519 | ledPower=1; |
xmwmx | 4:fe1e9f9c7b33 | 520 | |
xmwmx | 4:fe1e9f9c7b33 | 521 | wait_us(samplingTime); |
xmwmx | 4:fe1e9f9c7b33 | 522 | |
xmwmx | 4:fe1e9f9c7b33 | 523 | voMeasured = measurePin.read(); |
xmwmx | 4:fe1e9f9c7b33 | 524 | |
xmwmx | 4:fe1e9f9c7b33 | 525 | wait_us(deltaTime); |
xmwmx | 4:fe1e9f9c7b33 | 526 | ledPower=0; |
xmwmx | 4:fe1e9f9c7b33 | 527 | wait_us(sleepTime); |
xmwmx | 4:fe1e9f9c7b33 | 528 | |
xmwmx | 4:fe1e9f9c7b33 | 529 | calcVoltage = voMeasured*5.0; |
xmwmx | 4:fe1e9f9c7b33 | 530 | dustDensity = 0.17*calcVoltage-0.1; |
xmwmx | 4:fe1e9f9c7b33 | 531 | |
xmwmx | 4:fe1e9f9c7b33 | 532 | if ( dustDensity < 0) |
xmwmx | 4:fe1e9f9c7b33 | 533 | { |
xmwmx | 4:fe1e9f9c7b33 | 534 | dustDensity = 0.00; |
xmwmx | 4:fe1e9f9c7b33 | 535 | } |
xmwmx | 4:fe1e9f9c7b33 | 536 | return dustDensity ; |
xmwmx | 4:fe1e9f9c7b33 | 537 | } |