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67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
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* Copyright 2017 Rafal Zajac <rzajac@gmail.com>.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License. You may obtain
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* a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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#include <esp_gpio.h>
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#include <esp_dht22.h>
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#include <esp_sdo.h>
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#include <esp_util.h>
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#include <user_interface.h>
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#include <mem.h>
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os_timer_t timer;
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void ICACHE_FLASH_ATTR
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sys_init_done(void* arg)
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{
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esp_dht22_err err;
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esp_dht22_dev *dev = esp_dht22_new_dev(GPIO2);
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// Get temperature.
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err = esp_dht22_get(dev);
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if (err != ESP_DHT22_OK) {
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os_free(dev);
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os_printf("DHT22 error code: %d\n", err);
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return;
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}
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os_printf("Temp: %s\n", esp_util_ftoa(dev->temp, 3));
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os_printf("Hum: %s\n", esp_util_ftoa(dev->hum, 3));
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os_printf("--------------------\n");
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os_free(dev);
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}
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void ICACHE_FLASH_ATTR
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user_init()
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{
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// No need for wifi for this example.
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wifi_station_disconnect();
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wifi_set_opmode_current(NULL_MODE);
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//system_init_done_cb(sys_init_done);
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stdout_init(BIT_RATE_74880);
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// Initialize DHT22 on GPIO 2.
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esp_dht22_init(GPIO2);
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// Wait before running main code.
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os_printf("Initialized.\n");
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os_timer_disarm(&timer);
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os_timer_setfn(&timer, sys_init_done, NULL);
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os_timer_arm(&timer, 1500, true);
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}
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