SUNGTAE KIM / Mbed OS WIZnet-IoTShield-SENSOR_CDS

WIZnet-IoTShield-SENSOR_CDS v0.9

main.cpp@3:c9cd5d11484d, 2019-03-25 (annotated)

Committer:
stkim92
Date:
Mon Mar 25 10:11:25 2019 +0000
Revision:
3:c9cd5d11484d
Parent:
2:d7c5df056a3b
Child:
4:5ea8c91f607f
WIoT-Shield-SENSOR-TEMP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hkjung 0:5cd6077e0a8e 1 /* WIZnet IoT Shield Cat.M1 Sample code for Arm MBED
hkjung 0:5cd6077e0a8e 2 * Copyright (c) 2019 WIZnet Co., Ltd.
hkjung 0:5cd6077e0a8e 3 * SPDX-License-Identifier: Apache-2.0
hkjung 0:5cd6077e0a8e 4 */
stkim92 3:c9cd5d11484d 5
stkim92 3:c9cd5d11484d 6 /*
stkim92 3:c9cd5d11484d 7 * Licensed under the Apache License, Version 2.0 (the "License");
stkim92 3:c9cd5d11484d 8 * you may not use this file except in compliance with the License.
stkim92 3:c9cd5d11484d 9 * You may obtain a copy of the License at
stkim92 3:c9cd5d11484d 10 *
stkim92 3:c9cd5d11484d 11 * http://www.apache.org/licenses/LICENSE-2.0
stkim92 3:c9cd5d11484d 12 *
stkim92 3:c9cd5d11484d 13 * Unless required by applicable law or agreed to in writing, software
stkim92 3:c9cd5d11484d 14 * distributed under the License is distributed on an "AS IS" BASIS,
stkim92 3:c9cd5d11484d 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
stkim92 3:c9cd5d11484d 16 *
stkim92 3:c9cd5d11484d 17 * See the License for the specific language governing permissions and
stkim92 3:c9cd5d11484d 18 * limitations under the License.
stkim92 3:c9cd5d11484d 19 *
stkim92 3:c9cd5d11484d 20 */
hkjung 0:5cd6077e0a8e 21
hkjung 0:5cd6077e0a8e 22
hkjung 0:5cd6077e0a8e 23 #include <string>
hkjung 0:5cd6077e0a8e 24 #include "mbed.h"
hkjung 0:5cd6077e0a8e 25
hkjung 0:5cd6077e0a8e 26 #define RET_OK 1
hkjung 0:5cd6077e0a8e 27 #define RET_NOK -1
hkjung 0:5cd6077e0a8e 28 #define DEBUG_ENABLE 1
hkjung 0:5cd6077e0a8e 29 #define DEBUG_DISABLE 0
hkjung 0:5cd6077e0a8e 30 #define ON 1
hkjung 0:5cd6077e0a8e 31 #define OFF 0
hkjung 0:5cd6077e0a8e 32
hkjung 0:5cd6077e0a8e 33 #define MAX_BUF_SIZE 1024
hkjung 0:5cd6077e0a8e 34
hkjung 0:5cd6077e0a8e 35 #define BG96_APN_PROTOCOL_IPv4 1
hkjung 0:5cd6077e0a8e 36 #define BG96_APN_PROTOCOL_IPv6 2
hkjung 0:5cd6077e0a8e 37 #define BG96_DEFAULT_TIMEOUT 1000
hkjung 0:5cd6077e0a8e 38 #define BG96_CONNECT_TIMEOUT 15000
hkjung 0:5cd6077e0a8e 39 #define BG96_SEND_TIMEOUT 500
hkjung 0:5cd6077e0a8e 40 #define BG96_RECV_TIMEOUT 500
hkjung 0:5cd6077e0a8e 41
hkjung 0:5cd6077e0a8e 42 #define BG96_APN_PROTOCOL BG96_APN_PROTOCOL_IPv6
hkjung 0:5cd6077e0a8e 43 #define BG96_DEFAULT_BAUD_RATE 115200
hkjung 0:5cd6077e0a8e 44 #define BG96_PARSER_DELIMITER "\r\n"
hkjung 0:5cd6077e0a8e 45
hkjung 0:5cd6077e0a8e 46 #define CATM1_APN_SKT "lte-internet.sktelecom.com"
hkjung 0:5cd6077e0a8e 47
hkjung 0:5cd6077e0a8e 48 #define CATM1_DEVICE_NAME_BG96 "BG96"
hkjung 0:5cd6077e0a8e 49 #define DEVNAME CATM1_DEVICE_NAME_BG96
hkjung 0:5cd6077e0a8e 50
hkjung 0:5cd6077e0a8e 51 #define devlog(f_, ...) if(CATM1_DEVICE_DEBUG == DEBUG_ENABLE) { pc.printf("\r\n[%s] ", DEVNAME); pc.printf((f_), ##__VA_ARGS__); }
hkjung 0:5cd6077e0a8e 52 #define myprintf(f_, ...) {pc.printf("\r\n[MAIN] "); pc.printf((f_), ##__VA_ARGS__);}
hkjung 0:5cd6077e0a8e 53
hkjung 0:5cd6077e0a8e 54 /* Pin configuraiton */
hkjung 0:5cd6077e0a8e 55 // Cat.M1
hkjung 0:5cd6077e0a8e 56 #define MBED_CONF_IOTSHIELD_CATM1_TX D8
hkjung 0:5cd6077e0a8e 57 #define MBED_CONF_IOTSHIELD_CATM1_RX D2
hkjung 1:0d7ba45f12b1 58 #define MBED_CONF_IOTSHIELD_CATM1_RESET D7
hkjung 0:5cd6077e0a8e 59 #define MBED_CONF_IOTSHIELD_CATM1_PWRKEY D9
hkjung 1:0d7ba45f12b1 60
hkjung 0:5cd6077e0a8e 61 // Sensors
hkjung 0:5cd6077e0a8e 62 #define MBED_CONF_IOTSHIELD_SENSOR_CDS A0
hkjung 0:5cd6077e0a8e 63 #define MBED_CONF_IOTSHIELD_SENSOR_TEMP A1
hkjung 0:5cd6077e0a8e 64
hkjung 0:5cd6077e0a8e 65 /* Debug message settings */
hkjung 2:d7c5df056a3b 66 #define BG96_PARSER_DEBUG DEBUG_DISABLE
stkim92 3:c9cd5d11484d 67 #define CATM1_DEVICE_DEBUG DEBUG_ENABLE
hkjung 2:d7c5df056a3b 68
hkjung 0:5cd6077e0a8e 69
hkjung 0:5cd6077e0a8e 70 Serial pc(USBTX, USBRX); // USB debug
hkjung 0:5cd6077e0a8e 71
stkim92 3:c9cd5d11484d 72 UARTSerial *_serial; // Cat.M1 module
hkjung 0:5cd6077e0a8e 73
hkjung 1:0d7ba45f12b1 74 DigitalOut _RESET_BG96(MBED_CONF_IOTSHIELD_CATM1_RESET);
hkjung 1:0d7ba45f12b1 75 DigitalOut _PWRKEY_BG96(MBED_CONF_IOTSHIELD_CATM1_PWRKEY);
stkim92 3:c9cd5d11484d 76 AnalogIn tempVal(MBED_CONF_IOTSHIELD_SENSOR_TEMP);
hkjung 0:5cd6077e0a8e 77
stkim92 3:c9cd5d11484d 78 float val = 0; // 온도 측정 값 넣을 변수
stkim92 3:c9cd5d11484d 79 float voltage = 0; // 전압 계산 값 넣을 변수
stkim92 3:c9cd5d11484d 80 float celsius = 0; // 섭씨 계산 값 넣을 변수
stkim92 3:c9cd5d11484d 81 float fahrenheit = 0; // 화씨 계산 값 넣을 변수
stkim92 3:c9cd5d11484d 82
hkjung 2:d7c5df056a3b 83 bool flag_gettime = false;
hkjung 2:d7c5df056a3b 84
stkim92 3:c9cd5d11484d 85 float getTemperature_F(float _celsius);
stkim92 3:c9cd5d11484d 86 float getTemperature_C(float _voltage);
stkim92 3:c9cd5d11484d 87
hkjung 0:5cd6077e0a8e 88 void serialPcInit(void)
hkjung 0:5cd6077e0a8e 89 {
hkjung 0:5cd6077e0a8e 90 pc.baud(115200);
hkjung 0:5cd6077e0a8e 91 pc.format(8, Serial::None, 1);
hkjung 0:5cd6077e0a8e 92 }
hkjung 0:5cd6077e0a8e 93
hkjung 0:5cd6077e0a8e 94
hkjung 1:0d7ba45f12b1 95
hkjung 1:0d7ba45f12b1 96 // ----------------------------------------------------------------
hkjung 1:0d7ba45f12b1 97 // Main routine
hkjung 1:0d7ba45f12b1 98 // ----------------------------------------------------------------
hkjung 1:0d7ba45f12b1 99
hkjung 0:5cd6077e0a8e 100 int main()
hkjung 0:5cd6077e0a8e 101 {
stkim92 3:c9cd5d11484d 102 serialPcInit();
stkim92 3:c9cd5d11484d 103
hkjung 0:5cd6077e0a8e 104 myprintf("System Init Complete\r\n");
stkim92 3:c9cd5d11484d 105
hkjung 0:5cd6077e0a8e 106 myprintf("WIZnet IoT Shield for Arm MBED");
hkjung 0:5cd6077e0a8e 107 myprintf("LTE Cat.M1 Version");
hkjung 0:5cd6077e0a8e 108 myprintf("=================================================");
stkim92 3:c9cd5d11484d 109 myprintf(">> Sample Code: TEMP Test)");
hkjung 0:5cd6077e0a8e 110 myprintf("=================================================\r\n");
stkim92 3:c9cd5d11484d 111
stkim92 3:c9cd5d11484d 112 while(1) {
stkim92 3:c9cd5d11484d 113 // read the value from the sensor:
stkim92 3:c9cd5d11484d 114 val = tempVal.read_u16()/100;
stkim92 3:c9cd5d11484d 115 // 실제 전압 계산
stkim92 3:c9cd5d11484d 116 // 0~5V의 값을 구하기 위해 아래와 같이 5를 곱하고 1024를 나눈다.
stkim92 3:c9cd5d11484d 117 // (Analog값 * IC에 걸리는 전압 / Analog 10bit 분해능(1024))
stkim92 3:c9cd5d11484d 118 // IC에 걸리는 전압은 측정기로 측정
hkjung 2:d7c5df056a3b 119
stkim92 3:c9cd5d11484d 120 voltage = val * 4.95 / 1024;
stkim92 3:c9cd5d11484d 121 celsius = getTemperature_C(voltage);
stkim92 3:c9cd5d11484d 122 fahrenheit = getTemperature_F(celsius);
stkim92 3:c9cd5d11484d 123
stkim92 3:c9cd5d11484d 124 wait_ms(1000);
stkim92 3:c9cd5d11484d 125 myprintf("[ Temperature Data ]");
stkim92 3:c9cd5d11484d 126 myprintf("Sensor value : %.2f", val);
stkim92 3:c9cd5d11484d 127 myprintf("Volt : %.2f mV", voltage);
stkim92 3:c9cd5d11484d 128
stkim92 3:c9cd5d11484d 129 myprintf("Celsius temp : %.2f C", celsius);
stkim92 3:c9cd5d11484d 130 myprintf("Fahrenheit temp : %.2f F", fahrenheit);
stkim92 3:c9cd5d11484d 131 wait_ms(1000);
hkjung 2:d7c5df056a3b 132 }
hkjung 0:5cd6077e0a8e 133
hkjung 1:0d7ba45f12b1 134
hkjung 0:5cd6077e0a8e 135 }
hkjung 0:5cd6077e0a8e 136
hkjung 1:0d7ba45f12b1 137
hkjung 2:d7c5df056a3b 138
stkim92 3:c9cd5d11484d 139
stkim92 3:c9cd5d11484d 140 float getTemperature_F(float _celsius)
hkjung 0:5cd6077e0a8e 141 {
stkim92 3:c9cd5d11484d 142 // 섭씨에서 화씨 환산 -> (화씨온도 = 섭씽온*9/5+32)
stkim92 3:c9cd5d11484d 143 fahrenheit = celsius * 9.0 / 5.0 + 32.0;
stkim92 3:c9cd5d11484d 144 return fahrenheit;
hkjung 0:5cd6077e0a8e 145 }
hkjung 0:5cd6077e0a8e 146
stkim92 3:c9cd5d11484d 147 float getTemperature_C(float _voltage)
hkjung 0:5cd6077e0a8e 148 {
stkim92 3:c9cd5d11484d 149 // LM35는 섭씨 1도당 10mV의 전위차를 갖는다.
stkim92 3:c9cd5d11484d 150 // 센서핀의 전압이 0.28V라면 280mV이므로 온도는 28도씨.
stkim92 3:c9cd5d11484d 151 // 100을 곱해서 섭씨 온도로 나타냄
stkim92 3:c9cd5d11484d 152 celsius = voltage * 100.0;
stkim92 3:c9cd5d11484d 153 return celsius;
hkjung 0:5cd6077e0a8e 154 }