Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
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1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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1 | /* |
1c9894662795
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2 | * Copyright (c) 2019 Tomoyuki Sakurai <y@trombik.org> |
1c9894662795
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3 | * |
1c9894662795
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4 | * Permission to use, copy, modify, and distribute this software for any |
1c9894662795
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5 | * purpose with or without fee is hereby granted, provided that the above |
1c9894662795
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6 | * copyright notice and this permission notice appear in all copies. |
1c9894662795
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7 | * |
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8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
1c9894662795
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9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
1c9894662795
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10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
1c9894662795
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11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
1c9894662795
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12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
1c9894662795
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14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
1c9894662795
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15 | */ |
1c9894662795
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16 | |
1c9894662795
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17 | /** |
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18 | * @file lm75.h |
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19 | * @defgroup lm75 lm75 |
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20 | * @{ |
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21 | * |
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22 | * ESP-IDF driver for LM75, a digital temperature sensor and thermal watchdog. |
1c9894662795
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23 | * |
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24 | * The driver depends on i2cdev library in `esp-idf-lib`. |
1c9894662795
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25 | * |
1c9894662795
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26 | * The driver was written using LM75B. |
1c9894662795
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27 | * |
1c9894662795
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28 | * Short usage instruction: |
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29 | * |
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30 | * 1. Include lm75.h |
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31 | * 2. Initialize I2C descriptor by i2cdev_init() |
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32 | * 3. Initialize LM75 descriptor by lm75_init_desc() |
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33 | * 4. Initialize LM75 by lm75_init() |
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34 | * 5. Read temperature by lm75_read_temperature() |
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35 | * |
1c9894662795
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36 | */ |
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37 | #ifndef __LM75_H__ |
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38 | #define __LM75_H__ |
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39 | |
1c9894662795
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40 | #include <stdint.h> |
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41 | #include <stdbool.h> |
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42 | #include <i2cdev.h> |
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43 | #include <esp_err.h> |
1c9894662795
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44 | |
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45 | #ifdef __cplusplus |
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46 | extern "C" { |
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47 | #endif |
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48 | |
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49 | #define LM75_I2C_ADDRESS_DEFAULT (0x48) //!< Default I2C address (A0 == A1 == A2 == 0) |
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50 | #define LM75_I2C_ADDRESS_MAX (0x4f) //!< I2C address (A0 == A1 == A2 == 1) |
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51 | |
1c9894662795
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52 | /** |
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53 | * Operation mode of LM75 |
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54 | */ |
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55 | typedef enum { |
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56 | LM75_MODE_NORMAL = 0, //!< Normal operation mode |
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57 | LM75_MODE_SHUTDOWN = 1 //!< Shutdown mode |
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58 | } lm75_mode_t; |
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59 | |
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60 | /** |
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61 | * Overtemperature Shutdown Polarity |
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62 | */ |
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63 | typedef enum { |
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64 | LM75_OSP_LOW = 0, //!< Overtemperature Shutdown Polarity is active low |
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65 | LM75_OSP_HIGH = 1 //!< OSP is active high |
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66 | } lm75_os_polarity_t; |
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67 | |
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68 | /** |
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69 | * Overtemperature Shutdown output mode |
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70 | */ |
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71 | typedef enum { |
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72 | LM75_OS_MODE_COMP = 0, //!< OS output mode is comparator |
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73 | LM75_OS_MODE_INT = 1 //!< OS output mode is interrupt |
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74 | } lm75_os_mode_t; |
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75 | |
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76 | /** |
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77 | * OS fault queue, the number of faults that must occur consecutively to |
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78 | * activate the OS output |
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79 | */ |
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80 | typedef enum { |
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81 | LM75_FAULT_QUEUE1 = 0b00, //!< 1 |
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82 | LM75_FAULT_QUEUE2 = 0b01, //!< 2 |
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83 | LM75_FAULT_QUEUE4 = 0b10, //!< 4 |
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84 | LM75_FAULT_QUEUE6 = 0b11 //!< 6 |
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85 | } lm75_fault_queue_t; |
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86 | |
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87 | /** |
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88 | * Device configuration |
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89 | */ |
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90 | typedef struct { |
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91 | lm75_mode_t mode; //!< Operation mode of the device |
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92 | lm75_os_polarity_t os_pol; //!< OS Polarity |
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93 | lm75_os_mode_t os_mode; //!< OS mode |
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94 | lm75_fault_queue_t os_fault_queue; //!< OS fault queue |
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95 | } lm75_config_t; |
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96 | |
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97 | /** |
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98 | * @brief Initialize LM75 device descriptor |
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99 | * |
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100 | * i2cdev_init() must be called before this function. |
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101 | * |
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102 | * @param[out] dev pointer to LM75 device descriptor |
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103 | * @param[in] addr I2C address of LM75 |
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104 | * @param[in] port I2C port |
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105 | * @param[in] sda_gpio GPIO number of SDA |
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106 | * @param[in] scl_gpio GPIO number of SCL |
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107 | * @return `ESP_OK` on success |
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108 | */ |
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109 | esp_err_t lm75_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio); |
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110 | |
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111 | /** |
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112 | * @brief Initialize LM75 |
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113 | * |
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114 | * lm75_init_desc() must be called before this function. |
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115 | * |
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116 | * @param[in] dev pointer to LM75 device descriptor |
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117 | * @param[in] config configuration |
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118 | */ |
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119 | esp_err_t lm75_init(i2c_dev_t *dev, const lm75_config_t config); |
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120 | |
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121 | /** |
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122 | * @brief free LM75 device descriptor |
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123 | * @param dev Pointer to device descriptor |
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124 | */ |
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125 | esp_err_t lm75_free_desc(i2c_dev_t *dev); |
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126 | |
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127 | /** |
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128 | * @brief Get the value of OS Polarity in the configuration register |
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129 | * @param[in] dev pointer to LM75 device descriptor |
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130 | * @param[out] v value of OS Polarity |
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131 | * @return `ESP_OK` on success |
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132 | */ |
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133 | esp_err_t lm75_get_os_polarity(i2c_dev_t *dev, uint8_t *v); |
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134 | |
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135 | /** |
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136 | * @brief Get the value of OS threshold in the configuration register |
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137 | * @param[in] dev pointer to LM75 device descriptor |
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138 | * @param[out] value value of OS threshold |
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139 | * @return `ESP_OK` on success |
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140 | */ |
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141 | esp_err_t lm75_get_os_threshold(i2c_dev_t *dev, float *value); |
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142 | |
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143 | /** |
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144 | * @brief Read the temperature |
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145 | * @param[in] dev pointer to LM75 device descriptor |
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146 | * @param[out] value temperature |
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147 | * @return `ESP_OK` on success |
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148 | */ |
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149 | esp_err_t lm75_read_temperature(i2c_dev_t *dev, float *value); |
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150 | |
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151 | /** |
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152 | * @brief Set OS mode |
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153 | * @param[in] dev pointer to LM75 device descriptor |
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154 | * @param[in] v OS mode |
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155 | * @return `ESP_OK` on success |
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156 | */ |
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157 | esp_err_t lm75_set_os_mode(i2c_dev_t *dev, const lm75_os_mode_t v); |
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158 | |
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159 | /** |
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160 | * @brief Set the value of OS Polarity in the configuration register |
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161 | * |
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162 | * @param[in] dev pointer to LM75 device descriptor |
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163 | * @param[in] v value of OS Polarity |
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164 | * @return `ESP_OK` on success |
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165 | */ |
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166 | esp_err_t lm75_set_os_polarity(i2c_dev_t *dev, const lm75_os_polarity_t v); |
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167 | |
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168 | /** |
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169 | * @brief Set the value of OS threshold in the configuration register |
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170 | * @param[in] dev pointer to LM75 device descriptor |
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171 | * @param[in] value value of OS threshold |
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172 | * @return `ESP_OK` on success |
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173 | */ |
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174 | esp_err_t lm75_set_os_threshold(i2c_dev_t *dev, const float value); |
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175 | |
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176 | /** |
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177 | * @brief Shutdown LM75 |
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178 | * @param[in] dev pointer to LM75 device descriptor |
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179 | * @return `ESP_OK` on success |
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180 | */ |
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181 | esp_err_t lm75_shutdown(i2c_dev_t *dev); |
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182 | |
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183 | /** |
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184 | * @brief Wake LM75 up |
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185 | * @param[in] dev pointer to LM75 device descriptor |
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186 | * @return `ESP_OK` on success |
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187 | */ |
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188 | esp_err_t lm75_wakeup(i2c_dev_t *dev); |
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189 | |
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190 | #ifdef __cplusplus |
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191 | } |
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192 | #endif |
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193 | |
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194 | /**@}*/ |
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195 | |
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196 | #endif |