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) 2020 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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3 | * |
1c9894662795
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4 | * Redistribution and use in source and binary forms, with or without |
1c9894662795
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5 | * modification, are permitted provided that the following conditions are met: |
1c9894662795
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6 | * |
1c9894662795
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7 | * 1. Redistributions of source code must retain the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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8 | * this list of conditions and the following disclaimer. |
1c9894662795
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9 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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10 | * this list of conditions and the following disclaimer in the documentation |
1c9894662795
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11 | * and/or other materials provided with the distribution. |
1c9894662795
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12 | * 3. Neither the name of the copyright holder nor the names of itscontributors |
1c9894662795
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13 | * may be used to endorse or promote products derived from this software without |
1c9894662795
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14 | * specific prior written permission. |
1c9894662795
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15 | * |
1c9894662795
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
1c9894662795
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
1c9894662795
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
1c9894662795
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19 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
1c9894662795
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20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
1c9894662795
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21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
1c9894662795
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22 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
1c9894662795
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23 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
1c9894662795
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24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
1c9894662795
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25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
1c9894662795
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26 | */ |
1c9894662795
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27 | |
1c9894662795
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28 | /** |
1c9894662795
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29 | * @file mcp342x.h |
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30 | * @defgroup mcp342x mcp342x |
1c9894662795
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31 | * @{ |
1c9894662795
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32 | * |
1c9894662795
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33 | * ESP-IDF driver for 18-Bit, multi-channel delta-sigma |
1c9894662795
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34 | * ADC MCP3426/MCP3427/MCP3428 |
1c9894662795
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35 | * |
1c9894662795
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36 | * Copyright (c) 2020 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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37 | * |
1c9894662795
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38 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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39 | */ |
1c9894662795
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40 | #ifndef __MCP342X_H__ |
1c9894662795
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41 | #define __MCP342X_H__ |
1c9894662795
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42 | |
1c9894662795
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43 | #include <stdbool.h> |
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44 | #include <i2cdev.h> |
1c9894662795
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45 | #include <esp_err.h> |
1c9894662795
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46 | |
1c9894662795
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47 | #ifdef __cplusplus |
1c9894662795
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48 | extern "C" { |
1c9894662795
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49 | #endif |
1c9894662795
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50 | |
1c9894662795
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51 | #define MCP342X_ADDR_MIN 0x68 |
1c9894662795
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52 | #define MCP342X_ADDR_MAX 0x6f |
1c9894662795
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53 | |
1c9894662795
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54 | /** |
1c9894662795
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55 | * Device operation mode |
1c9894662795
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56 | */ |
1c9894662795
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57 | typedef enum { |
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58 | MCP342X_ONESHOT = 0, //!< One-shot conversion mode |
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59 | MCP342X_CONTINUOUS //!< Continuous conversions mode, default |
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60 | } mcp342x_mode_t; |
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61 | |
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62 | /** |
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63 | * Input channel |
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64 | */ |
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65 | typedef enum { |
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66 | MCP342X_CHANNEL1 = 0, //!< Channel 1, default |
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67 | MCP342X_CHANNEL2, //!< Channel 2 |
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68 | MCP342X_CHANNEL3, //!< Channel 3 (MCP3428 only, treated as channel 1 by the MCP3426/MCP3427) |
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69 | MCP342X_CHANNEL4 //!< Channel 4 (MCP3428 only, treated as channel 2 by the MCP3426/MCP3427) |
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70 | } mcp342x_channel_t; |
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71 | |
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72 | /** |
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73 | * Resolution |
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74 | */ |
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75 | typedef enum { |
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76 | MCP342X_RES_12 = 0, //!< 12 bits, 240 samples per second |
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77 | MCP342X_RES_14, //!< 14 bits, 60 samples per second |
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78 | MCP342X_RES_16, //!< 16 bits, 15 samples per second |
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79 | MCP342X_RES_18 //!< 18 bits, 3.75 samples per second |
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80 | } mcp342x_resolution_t; |
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81 | |
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82 | /** |
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83 | * PGA gain |
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84 | */ |
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85 | typedef enum { |
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86 | MCP342X_GAIN1 = 0,//!< x1, default |
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87 | MCP342X_GAIN2, //!< x2 |
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88 | MCP342X_GAIN4, //!< x4 |
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89 | MCP342X_GAIN8 //!< x8 |
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90 | } mcp342x_gain_t; |
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91 | |
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92 | /** |
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93 | * Device descriptor |
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94 | */ |
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95 | typedef struct { |
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96 | i2c_dev_t i2c_dev; //!< I2C device descriptor |
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97 | mcp342x_mode_t mode; //!< Operational mode |
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98 | mcp342x_channel_t channel; //!< Input channel |
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99 | mcp342x_resolution_t resolution; //!< Resolution |
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100 | mcp342x_gain_t gain; //!< PGA gain |
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101 | } mcp342x_t; |
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102 | |
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103 | /** |
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104 | * @brief Initialize device descriptor |
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105 | * |
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106 | * @param dev Device descriptor |
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107 | * @param port I2C port |
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108 | * @param addr Device address |
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109 | * @param sda_gpio SDA GPIO pin |
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110 | * @param scl_gpio SCL GPIO pin |
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111 | * @return `ESP_OK` on success |
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112 | */ |
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113 | esp_err_t mcp342x_init_desc(mcp342x_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio); |
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114 | |
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115 | /** |
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116 | * @brief Free device descriptor |
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117 | * |
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118 | * @param dev Device descriptor |
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119 | * @return `ESP_OK` on success |
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120 | */ |
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121 | esp_err_t mcp342x_free_desc(mcp342x_t *dev); |
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122 | |
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123 | /** |
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124 | * @brief Configure device |
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125 | * |
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126 | * @param dev Device descriptor |
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127 | * @return `ESP_OK` on success |
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128 | */ |
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129 | esp_err_t mcp342x_set_config(mcp342x_t *dev); |
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130 | |
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131 | /** |
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132 | * @brief Read device configuration |
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133 | * |
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134 | * @param dev Device descriptor |
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135 | * @return `ESP_OK` on success |
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136 | */ |
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137 | esp_err_t mcp342x_get_config(mcp342x_t *dev); |
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138 | |
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139 | /** |
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140 | * @brief Get conversion time in microseconds |
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141 | * |
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142 | * @param dev Device descriptor |
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143 | * @param[out] us Conversion time, us |
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144 | * @return `ESP_OK` on success |
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145 | */ |
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146 | esp_err_t mcp342x_get_sample_time_us(mcp342x_t *dev, uint32_t *us); |
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147 | |
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148 | /** |
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149 | * @brief Start conversion |
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150 | * |
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151 | * @param dev Device descriptor |
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152 | * @return `ESP_OK` on success |
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153 | */ |
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154 | esp_err_t mcp342x_start_conversion(mcp342x_t *dev); |
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155 | |
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156 | /** |
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157 | * @brief Get raw ADC value |
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158 | * |
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159 | * @param dev Device descriptor |
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160 | * @param[out] data ADC value |
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161 | * @param[out] ready Data validity flag |
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162 | * @return `ESP_OK` on success |
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163 | */ |
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164 | esp_err_t mcp342x_get_data(mcp342x_t *dev, int32_t *data, bool *ready); |
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165 | |
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166 | /** |
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167 | * @brief Get ADC voltage |
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168 | * |
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169 | * @param dev Device descriptor |
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170 | * @param[out] volts ADC voltage, volts |
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171 | * @param[out] ready Data validity flag |
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172 | * @return `ESP_OK` on success |
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173 | */ |
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174 | esp_err_t mcp342x_get_voltage(mcp342x_t *dev, float *volts, bool *ready); |
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175 | |
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176 | /** |
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177 | * @brief Do a single conversion |
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178 | * |
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179 | * - start conversion |
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180 | * - wait conversion time |
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181 | * - read conversion result |
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182 | * |
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183 | * @param dev Device descriptor |
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184 | * @param[out] data ADC value |
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185 | * @return `ESP_OK` on success |
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186 | */ |
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187 | esp_err_t mcp342x_oneshot_conversion(mcp342x_t *dev, int32_t *data); |
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188 | |
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189 | #ifdef __cplusplus |
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190 | } |
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191 | #endif |
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192 | |
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193 | /**@}*/ |
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194 | |
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195 | #endif /* __MCP342X_H__ */ |