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79 lines
2.0 KiB
C
79 lines
2.0 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_sht21.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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#define SCL GPIO0
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#define SDA GPIO2
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os_timer_t timer;
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void ICACHE_FLASH_ATTR
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run_sht21()
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{
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uint8_t rev;
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float value;
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uint8_t sn[8];
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esp_i2c_err err;
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err = esp_sht21_init(SCL, SDA);
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if (err != ESP_I2C_OK) {
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os_printf("SHT21 init error.\n");
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return;
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}
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err = esp_sht21_get_sn(sn);
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if (err != ESP_I2C_OK) os_printf("SHT21 sn error %d.\n", err);
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os_printf("SHT21 SN: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
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sn[0], sn[1], sn[2], sn[3],
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sn[4], sn[5], sn[6], sn[7]);
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err = esp_sht21_get_rev(&rev);
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if (err != ESP_I2C_OK) os_printf("SHT21 sn error %d.\n", err);
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os_printf("Firmware rev: 0x%02X\n", rev);
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err = esp_sht21_get_rh(&value);
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if (err != ESP_I2C_OK) os_printf("Get RH error: %d\n", err);
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os_printf("Humidity: %s%%\n", esp_util_ftoa(value, 2));
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err = esp_sht21_get_temp_last(&value);
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if (err != ESP_I2C_OK) os_printf("Get TEMP error: %d\n", err);
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os_printf("Temperature: %s deg. C\n", esp_util_ftoa(value, 2));
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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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// We don't need WiFi for this example.
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wifi_station_disconnect();
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wifi_set_opmode(NULL_MODE);
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stdout_init(BIT_RATE_74880);
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os_printf("Starting...\n");
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os_timer_disarm(&timer);
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os_timer_setfn(&timer, (os_timer_func_t *) run_sht21, NULL);
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os_timer_arm(&timer, 1500, false);
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}
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