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Demo for showing Thunderboard Sense 2's sensor values on a 15-second interval
Dependencies: AMS_CCS811_gas_sensor BMP280 Si7021 Si7210 Si1133 ICM20648
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Information
All examples in this repo are considered EXPERIMENTAL QUALITY, meaning this code has been created as one-off proof-of-concept and is suitable as a demonstration for experimental purposes only. This code will not be regularly maintained by Silicon Labs and there is no guarantee that these projects will work across all environments, SDK versions and hardware.
main.cpp
- Committer:
- stevew817
- Date:
- 2017-11-12
- Revision:
- 2:f80572d04d7a
- Parent:
- 1:7174444a05e2
- Child:
- 3:2e1381d5e300
File content as of revision 2:f80572d04d7a:
/* * PackageLicenseDeclared: Apache-2.0 * Copyright (c) 2017 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <string> #include "mbed.h" #include "BMP280/BMP280.h" #include "AMS_CCS811.h" #include "Si7021.h" #include "Si7210.h" #include "Si1133.h" /* Turn on power supply to ENV sensor suite */ DigitalOut env_en(PF9, 1); /* Turn on power to CCS811 sensor */ DigitalOut ccs_en(PF14, 1); /* Set CCS_WAKE pin to output */ DigitalOut ccs_wake(PF15, 1); /* Turn on power to hall effect sensor */ DigitalOut hall_en(PB10, 1); I2C ccs_i2c(PB6, PB7); I2C hall_i2c(PB8, PB9); I2C env_i2c(PC4, PC5); int main() { uint32_t eco2, tvoc; float pressure, temperature2; int32_t temperature; uint32_t humidity; float light, uv; bool lightsensor_en = true; bool gassensor_en = true; bool hallsensor_en = true; bool rhtsensor_en = true; bool pressuresensor_en = true; ccs_en = 0; wait_ms(1000); ccs_en = 1; wait_ms(1000); /* Initialize air quality sensor */ AMS_CCS811* gasSensor = new AMS_CCS811(&ccs_i2c, PF15); if(!gasSensor->init()) { printf("Failed CCS811 init\r\n"); gassensor_en = false; } else { if(!gasSensor->mode(AMS_CCS811::TEN_SECOND)) { printf("Failed to set CCS811 mode\r\n"); gassensor_en = false; } } wait_ms(10); /* Initialize barometer and RHT */ BMP280* pressureSensor = new BMP280(env_i2c); Si7021* rhtSensor = new Si7021(PC4, PC5); printf("\r\n\r\nHello Thunderboard Sense 2...\r\n"); /* Check if hall sensor is alive */ silabs::Si7210* hallSensor = new silabs::Si7210(&hall_i2c); uint8_t id; hallSensor->wakeup(); hallSensor->readRegister(SI72XX_HREVID, &id); printf("Hall ID: %d\r\n", id); /* Initialize light sensor */ Si1133* lightSensor = new Si1133(PC4, PC5); if(!lightSensor->open()) { printf("Something is wrong with Si1133, disabling...\n"); lightsensor_en = false; } do { printf("----------------------------------------------\r\n"); /* Measure temperature and humidity */ if(rhtsensor_en) { rhtSensor->measure(); rhtSensor->measure(); temperature = rhtSensor->get_temperature(); humidity = rhtSensor->get_humidity(); printf("Si7021:\r\n"); printf("T: %ld.%03ld degC\r\n", temperature/1000, abs(temperature%1000)); printf("h: %ld.%03ld %%\r\n", humidity/1000, humidity%1000); } /* Measure barometric pressure */ if(pressuresensor_en) { temperature2 = pressureSensor->getTemperature(); pressure = pressureSensor->getPressure(); printf("BMP280:\r\n"); printf("P: %.2f bar\r\n", pressure); printf("T: %.2f degC\r\n", temperature2); } /* Measure air quality */ if(gassensor_en) { gasSensor->has_new_data(); eco2 = gasSensor->co2_read(); tvoc = gasSensor->tvoc_read(); printf("CCS811:\r\n"); printf("CO2: %ld ppm\r\n", eco2); printf("VoC: %ld ppb\r\n", tvoc); } /* measure HALL */ if(hallsensor_en) { hallSensor->measureOnce(); printf("Si7210:\r\n"); printf("T: %d.%02d degC\r\n", hallSensor->getTemperature()/1000, abs(hallSensor->getTemperature()%1000)); printf("F: %i.%03d mT\r\n", (int)(hallSensor->getFieldStrength()/1000), abs(hallSensor->getFieldStrength() % 1000)); } /* measure light */ if(lightsensor_en) { lightSensor->get_light_and_uv(&light, &uv); printf("BMP280:\r\n"); printf("L: %.2f lux\r\n", light); printf("U: %.2f\r\n", uv); } wait_ms(15000); } while(1); }