main.cpp

00001 /***************************************************************************//**
00002  * @file main.cpp
00003  *******************************************************************************
00004  * @section License
00005  * <b>(C) Copyright 2017 Silicon Labs, http://www.silabs.com</b>
00006  *******************************************************************************
00007  *
00008  * SPDX-License-Identifier: Apache-2.0
00009  *
00010  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00011  * not use this file except in compliance with the License.
00012  * You may obtain a copy of the License at
00013  *
00014  * http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing, software
00017  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00018  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00019  * See the License for the specific language governing permissions and
00020  * limitations under the License.
00021  *
00022  ******************************************************************************/
00023 
00024 #include <string>
00025 #include "mbed.h"
00026 #include "BMP280/BMP280.h"
00027 #include "AMS_CCS811.h"
00028 #include "Si7021.h"
00029 #include "Si7210.h"
00030 #include "Si1133.h"
00031 #include "ICM20648.h"
00032 
00033 /* Turn on power supply to ENV sensor suite */
00034 DigitalOut env_en(PF9, 1);
00035 /* Turn on power to CCS811 sensor */
00036 DigitalOut ccs_en(PF14, 1);
00037 /* Set CCS_WAKE pin to output */
00038 DigitalOut ccs_wake(PF15, 1);
00039 /* Turn on power to hall effect sensor */
00040 DigitalOut hall_en(PB10, 1);
00041 /* Turn on power to IMU */
00042 DigitalOut imu_en(PF8, 1);
00043 
00044 I2C ccs_i2c(PB6, PB7);
00045 I2C hall_i2c(PB8, PB9);
00046 I2C env_i2c(PC4, PC5);
00047 
00048 int main() {
00049     uint32_t eco2, tvoc;
00050     float pressure, temperature2;
00051     int32_t temperature;
00052     uint32_t humidity;
00053     float light, uv;
00054     float acc_x, acc_y, acc_z, gyr_x, gyr_y, gyr_z, temperature3;
00055 
00056     bool lightsensor_en = true;
00057     bool gassensor_en = true;
00058     bool hallsensor_en = true;
00059     bool rhtsensor_en = true;
00060     bool pressuresensor_en = true;
00061     bool imu_en = true;
00062 
00063     ccs_en = 0;
00064     wait_ms(1000);
00065     ccs_en = 1;
00066     wait_ms(1000);
00067 
00068     /* Initialize air quality sensor */
00069     AMS_CCS811* gasSensor = new AMS_CCS811(&ccs_i2c, PF15);
00070     if(!gasSensor->init()) {
00071         printf("Failed CCS811 init\r\n");
00072         gassensor_en = false;
00073     } else {
00074         if(!gasSensor->mode(AMS_CCS811::TEN_SECOND)) {
00075             printf("Failed to set CCS811 mode\r\n");
00076             gassensor_en = false;
00077         }
00078     }
00079     
00080     wait_ms(10);
00081 
00082     /* Initialize barometer and RHT */
00083     BMP280* pressureSensor = new BMP280(env_i2c);
00084     Si7021* rhtSensor = new Si7021(PC4, PC5);
00085 
00086     printf("\r\n\r\nHello Thunderboard Sense 2...\r\n");
00087     
00088     /* Check if hall sensor is alive */
00089     silabs::Si7210* hallSensor = new silabs::Si7210(&hall_i2c);
00090     uint8_t id;
00091     hallSensor->wakeup();
00092     hallSensor->readRegister(SI72XX_HREVID, &id);
00093     printf("Hall ID: %d\r\n", id);
00094 
00095     /* Initialize light sensor */
00096     Si1133* lightSensor = new Si1133(PC4, PC5);
00097 
00098     if(!lightSensor->open()) {
00099         printf("Something is wrong with Si1133, disabling...\n");
00100         lightsensor_en = false;
00101     }
00102 
00103     /* Initialize the IMU*/
00104     ICM20648* imu = new ICM20648(PC0, PC1, PC2, PC3, PF12);
00105 
00106     if(!imu->open()) {
00107         printf("Something is wrong with ICM20648, disabling...\n");
00108         imu_en = false;
00109     }
00110     
00111     do {
00112         printf("----------------------------------------------\r\n");
00113         /* Measure temperature and humidity */
00114         if(rhtsensor_en) {
00115             rhtSensor->measure();
00116             rhtSensor->measure();
00117             temperature = rhtSensor->get_temperature();
00118             humidity = rhtSensor->get_humidity();
00119 
00120             printf("Si7021:\r\n");
00121             printf("T: %ld.%03ld degC\r\n", temperature/1000, abs(temperature%1000));
00122             printf("h: %ld.%03ld %%\r\n", humidity/1000, humidity%1000);
00123         }
00124         
00125         /* Measure barometric pressure */
00126         if(pressuresensor_en) {
00127             temperature2 = pressureSensor->getTemperature();
00128             pressure = pressureSensor->getPressure();
00129 
00130             printf("BMP280:\r\n");
00131             printf("P: %.2f bar\r\n", pressure);
00132             printf("T: %.2f degC\r\n", temperature2);
00133         }
00134 
00135         /* Measure air quality */
00136         if(gassensor_en) {
00137             gasSensor->has_new_data();
00138             eco2 = gasSensor->co2_read();
00139             tvoc = gasSensor->tvoc_read();
00140 
00141             printf("CCS811:\r\n");
00142             printf("CO2: %ld ppm\r\n", eco2);
00143             printf("VoC: %ld ppb\r\n", tvoc);
00144         }
00145         
00146         /* measure HALL */
00147         if(hallsensor_en) {
00148             hallSensor->measureOnce();
00149 
00150             printf("Si7210:\r\n");
00151             printf("T: %d.%02d degC\r\n", hallSensor->getTemperature()/1000, abs(hallSensor->getTemperature()%1000));
00152             printf("F: %i.%03d mT\r\n", (int)(hallSensor->getFieldStrength()/1000), abs(hallSensor->getFieldStrength() % 1000));
00153         }
00154         
00155         /* measure light */
00156         if(lightsensor_en) {
00157             lightSensor->get_light_and_uv(&light, &uv);
00158 
00159             printf("BMP280:\r\n");
00160             printf("L: %.2f lux\r\n", light);
00161             printf("U: %.2f\r\n", uv);
00162         }
00163 
00164         /* measure imu */
00165         if(imu_en) {
00166             imu->get_temperature(&temperature3);
00167             imu->get_accelerometer(&acc_x, &acc_y, &acc_z);
00168             imu->get_gyroscope(&gyr_x, &gyr_y, &gyr_z);
00169 
00170             printf("ICM20648:\r\n");
00171             printf("T: %.2f degC\r\n", temperature3);
00172             printf("Acc: %.2f %.2f %.2f\r\n", acc_x, acc_y, acc_z);
00173             printf("Gyro: %.2f %.2f %.2f\r\n", gyr_x, gyr_y, gyr_z);
00174         }
00175 
00176         wait_ms(15000);
00177     } while(1);
00178 }