/**************************************************************************** * apps/examples/dhtxx/dhtxx_main.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * dhtxx_main ****************************************************************************/ int main(int argc, FAR char *argv[]) { struct dhtxx_sensor_data_s data; int fd; int ret; int i; printf("Dhtxx app is running.\n"); fd = open(CONFIG_EXAMPLES_DHTXX_DEVPATH, O_RDWR); for (i = 0; i < 20; i++) { ret = read(fd, &data, sizeof(struct dhtxx_sensor_data_s)); if (ret < 0) { printf("Read error.\n"); printf("Sensor reported error %d\n", data.status); } else { printf("Read successful.\n"); printf("Humidity = %2.2f %%, temperature = %2.2f C\n", data.hum, data.temp); } sleep(1); } close(fd); return 0; }