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
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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2 | * Copyright (c) 2019 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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3 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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4 | * Redistribution and use in source and binary forms, with or without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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5 | * modification, are permitted provided that the following conditions are met: |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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6 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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.
Michiel Broek <mbroek@mbse.eu>
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8 | * this list of conditions and the following disclaimer. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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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.
Michiel Broek <mbroek@mbse.eu>
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10 | * this list of conditions and the following disclaimer in the documentation |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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11 | * and/or other materials provided with the distribution. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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12 | * 3. Neither the name of the copyright holder nor the names of itscontributors |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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13 | * may be used to endorse or promote products derived from this software without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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14 | * specific prior written permission. |
1c9894662795
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15 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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19 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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22 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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23 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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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 ina219.c |
1c9894662795
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30 | * |
1c9894662795
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31 | * ESP-IDF driver for INA219/INA220 Zerø-Drift, Bidirectional |
1c9894662795
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32 | * Current/Power Monitor |
1c9894662795
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33 | * |
1c9894662795
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34 | * Copyright (c) 2019 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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35 | * |
1c9894662795
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36 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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37 | */ |
1c9894662795
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38 | #include <esp_log.h> |
1c9894662795
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39 | #include <math.h> |
1c9894662795
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40 | #include <esp_idf_lib_helpers.h> |
1c9894662795
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41 | #include "ina219.h" |
1c9894662795
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42 | |
1c9894662795
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43 | #define I2C_FREQ_HZ 1000000 // Max 1 MHz for esp-idf, but supports up to 2.56 MHz |
1c9894662795
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44 | |
1c9894662795
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45 | static const char *TAG = "ina219"; |
1c9894662795
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46 | |
1c9894662795
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47 | #define REG_CONFIG 0 |
1c9894662795
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48 | #define REG_SHUNT_U 1 |
1c9894662795
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49 | #define REG_BUS_U 2 |
1c9894662795
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50 | #define REG_POWER 3 |
1c9894662795
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51 | #define REG_CURRENT 4 |
1c9894662795
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52 | #define REG_CALIBRATION 5 |
1c9894662795
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53 | |
1c9894662795
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54 | #define BIT_RST 15 |
1c9894662795
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55 | #define BIT_BRNG 13 |
1c9894662795
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56 | #define BIT_PG0 11 |
1c9894662795
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57 | #define BIT_BADC0 7 |
1c9894662795
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58 | #define BIT_SADC0 3 |
1c9894662795
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59 | #define BIT_MODE 0 |
1c9894662795
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60 | |
1c9894662795
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61 | #define MASK_PG (3 << BIT_PG0) |
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62 | #define MASK_BADC (0xf << BIT_BADC0) |
1c9894662795
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63 | #define MASK_SADC (0xf << BIT_SADC0) |
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64 | #define MASK_MODE (7 << BIT_MODE) |
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65 | #define MASK_BRNG (1 << BIT_BRNG) |
1c9894662795
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66 | |
1c9894662795
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67 | #define DEF_CONFIG 0x399f |
1c9894662795
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68 | |
1c9894662795
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69 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
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70 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
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71 | |
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72 | static const float u_shunt_max[] = { |
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73 | [INA219_GAIN_1] = 0.04, |
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74 | [INA219_GAIN_0_5] = 0.08, |
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75 | [INA219_GAIN_0_25] = 0.16, |
1c9894662795
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76 | [INA219_GAIN_0_125] = 0.32, |
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77 | }; |
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78 | |
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79 | static esp_err_t read_reg_16(ina219_t *dev, uint8_t reg, uint16_t *val) |
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80 | { |
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81 | CHECK_ARG(val); |
1c9894662795
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82 | |
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83 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
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84 | I2C_DEV_CHECK(&dev->i2c_dev, i2c_dev_read_reg(&dev->i2c_dev, reg, val, 2)); |
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85 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
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86 | |
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87 | *val = (*val >> 8) | (*val << 8); |
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88 | |
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89 | return ESP_OK; |
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90 | } |
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91 | |
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92 | static esp_err_t write_reg_16(ina219_t *dev, uint8_t reg, uint16_t val) |
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93 | { |
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94 | uint16_t v = (val >> 8) | (val << 8); |
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95 | |
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96 | I2C_DEV_TAKE_MUTEX(&dev->i2c_dev); |
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97 | I2C_DEV_CHECK(&dev->i2c_dev, i2c_dev_write_reg(&dev->i2c_dev, reg, &v, 2)); |
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98 | I2C_DEV_GIVE_MUTEX(&dev->i2c_dev); |
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99 | |
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100 | return ESP_OK; |
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101 | } |
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102 | |
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103 | static esp_err_t read_conf_bits(ina219_t *dev, uint16_t mask, uint8_t bit, uint16_t *res) |
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104 | { |
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105 | uint16_t raw; |
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106 | CHECK(read_reg_16(dev, REG_CONFIG, &raw)); |
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107 | |
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108 | *res = (raw & mask) >> bit; |
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109 | |
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110 | return ESP_OK; |
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111 | } |
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112 | |
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113 | /////////////////////////////////////////////////////////////////////////////// |
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114 | |
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115 | esp_err_t ina219_init_desc(ina219_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio) |
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116 | { |
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117 | CHECK_ARG(dev); |
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118 | |
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119 | if (addr < INA219_ADDR_GND_GND || addr > INA219_ADDR_SCL_SCL) |
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120 | { |
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121 | ESP_LOGE(TAG, "Invalid I2C address"); |
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122 | return ESP_ERR_INVALID_ARG; |
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123 | } |
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124 | |
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125 | dev->i2c_dev.port = port; |
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126 | dev->i2c_dev.addr = addr; |
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127 | dev->i2c_dev.cfg.sda_io_num = sda_gpio; |
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128 | dev->i2c_dev.cfg.scl_io_num = scl_gpio; |
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129 | #if HELPER_TARGET_IS_ESP32 |
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130 | dev->i2c_dev.cfg.master.clk_speed = I2C_FREQ_HZ; |
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131 | #endif |
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132 | |
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133 | return i2c_dev_create_mutex(&dev->i2c_dev); |
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134 | } |
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135 | |
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136 | esp_err_t ina219_free_desc(ina219_t *dev) |
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137 | { |
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138 | CHECK_ARG(dev); |
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139 | |
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140 | return i2c_dev_delete_mutex(&dev->i2c_dev); |
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141 | } |
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142 | |
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143 | esp_err_t ina219_init(ina219_t *dev) |
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144 | { |
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145 | CHECK_ARG(dev); |
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146 | |
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147 | CHECK(read_reg_16(dev, REG_CONFIG, &dev->config)); |
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148 | |
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149 | ESP_LOGD(TAG, "Initialize, config: 0x%04x", dev->config); |
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150 | |
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151 | return ESP_OK; |
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152 | } |
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153 | |
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154 | esp_err_t ina219_reset(ina219_t *dev) |
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155 | { |
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156 | CHECK_ARG(dev); |
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157 | CHECK(write_reg_16(dev, REG_CONFIG, 1 << BIT_RST)); |
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158 | |
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159 | dev->config = DEF_CONFIG; |
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160 | |
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161 | ESP_LOGD(TAG, "Device reset"); |
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162 | |
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163 | return ESP_OK; |
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164 | } |
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165 | |
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166 | esp_err_t ina219_configure(ina219_t *dev, ina219_bus_voltage_range_t u_range, |
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167 | ina219_gain_t gain, ina219_resolution_t u_res, |
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168 | ina219_resolution_t i_res, ina219_mode_t mode) |
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169 | { |
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170 | CHECK_ARG(dev); |
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171 | CHECK_ARG(u_range <= INA219_BUS_RANGE_32V); |
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172 | CHECK_ARG(gain <= INA219_GAIN_0_125); |
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173 | CHECK_ARG(u_res <= INA219_RES_12BIT_128S); |
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174 | CHECK_ARG(i_res <= INA219_RES_12BIT_128S); |
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175 | CHECK_ARG(mode <= INA219_MODE_CONT_SHUNT_BUS); |
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176 | |
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177 | dev->config = (u_range << BIT_BRNG) | |
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178 | (gain << BIT_PG0) | |
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179 | (u_res << BIT_BADC0) | |
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180 | (i_res << BIT_SADC0) | |
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181 | (mode << BIT_MODE); |
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182 | |
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183 | ESP_LOGD(TAG, "Config: 0x%04x", dev->config); |
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184 | |
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185 | return write_reg_16(dev, REG_CONFIG, dev->config); |
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186 | } |
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187 | |
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188 | esp_err_t ina219_get_bus_voltage_range(ina219_t *dev, ina219_bus_voltage_range_t *range) |
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189 | { |
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190 | CHECK_ARG(dev && range); |
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191 | *range = 0; |
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192 | return read_conf_bits(dev, MASK_BRNG, BIT_BRNG, (uint16_t *)range); |
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193 | } |
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194 | |
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195 | esp_err_t ina219_get_gain(ina219_t *dev, ina219_gain_t *gain) |
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196 | { |
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197 | CHECK_ARG(dev && gain); |
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198 | *gain = 0; |
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199 | return read_conf_bits(dev, MASK_PG, BIT_PG0, (uint16_t *)gain); |
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200 | } |
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201 | |
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202 | esp_err_t ina219_get_bus_voltage_resolution(ina219_t *dev, ina219_resolution_t *res) |
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203 | { |
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204 | CHECK_ARG(dev && res); |
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205 | *res = 0; |
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206 | return read_conf_bits(dev, MASK_BADC, BIT_BADC0, (uint16_t *)res); |
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207 | } |
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208 | |
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209 | esp_err_t ina219_get_shunt_voltage_resolution(ina219_t *dev, ina219_resolution_t *res) |
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210 | { |
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211 | CHECK_ARG(dev && res); |
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212 | *res = 0; |
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213 | return read_conf_bits(dev, MASK_SADC, BIT_SADC0, (uint16_t *)res); |
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214 | } |
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215 | |
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216 | esp_err_t ina219_get_mode(ina219_t *dev, ina219_mode_t *mode) |
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217 | { |
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218 | CHECK_ARG(dev && mode); |
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219 | *mode = 0; |
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220 | return read_conf_bits(dev, MASK_MODE, BIT_MODE, (uint16_t *)mode); |
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221 | } |
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222 | |
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223 | esp_err_t ina219_calibrate(ina219_t *dev, float i_expected_max, float r_shunt) |
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224 | { |
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225 | CHECK_ARG(dev); |
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226 | |
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227 | ina219_gain_t gain; |
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228 | CHECK(ina219_get_gain(dev, &gain)); |
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229 | |
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230 | dev->i_lsb = (uint16_t)(u_shunt_max[gain] / r_shunt / 32767 * 100000000); |
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231 | dev->i_lsb /= 100000000; |
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232 | dev->i_lsb /= 0.0001; |
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233 | dev->i_lsb = ceil(dev->i_lsb); |
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234 | dev->i_lsb *= 0.0001; |
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235 | |
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236 | dev->p_lsb = dev->i_lsb * 20; |
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237 | |
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238 | uint16_t cal = (uint16_t)((0.04096) / (dev->i_lsb * r_shunt)); |
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239 | |
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240 | ESP_LOGD(TAG, "Calibration: %.04f A, %.04f Ohm, 0x%04x", i_expected_max, r_shunt, cal); |
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241 | |
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242 | return write_reg_16(dev, REG_CALIBRATION, cal); |
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243 | } |
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244 | |
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245 | esp_err_t ina219_trigger(ina219_t *dev) |
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246 | { |
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247 | CHECK_ARG(dev); |
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248 | |
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249 | uint16_t mode = (dev->config & MASK_MODE) >> BIT_MODE; |
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250 | if (mode < INA219_MODE_TRIG_SHUNT || mode > INA219_MODE_TRIG_SHUNT_BUS) |
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251 | { |
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252 | ESP_LOGE(TAG, "Could not trigger conversion in this mode: %d", mode); |
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253 | return ESP_ERR_INVALID_STATE; |
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254 | } |
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255 | |
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256 | return write_reg_16(dev, REG_CONFIG, dev->config); |
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257 | } |
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258 | |
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259 | esp_err_t ina219_get_bus_voltage(ina219_t *dev, float *voltage) |
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260 | { |
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261 | CHECK_ARG(dev && voltage); |
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262 | |
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263 | int16_t raw; |
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264 | CHECK(read_reg_16(dev, REG_BUS_U, (uint16_t *)&raw)); |
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265 | |
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266 | *voltage = (raw >> 3) * 0.004; |
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267 | |
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268 | return ESP_OK; |
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269 | } |
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270 | |
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271 | esp_err_t ina219_get_shunt_voltage(ina219_t *dev, float *voltage) |
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272 | { |
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273 | CHECK_ARG(dev && voltage); |
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274 | |
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275 | int16_t raw; |
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276 | CHECK(read_reg_16(dev, REG_SHUNT_U, (uint16_t *)&raw)); |
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277 | |
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278 | *voltage = raw / 100000.0; |
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279 | |
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280 | return ESP_OK; |
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281 | } |
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282 | |
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283 | esp_err_t ina219_get_current(ina219_t *dev, float *current) |
1c9894662795
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284 | { |
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285 | CHECK_ARG(dev && current); |
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286 | |
1c9894662795
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287 | int16_t raw; |
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288 | CHECK(read_reg_16(dev, REG_CURRENT, (uint16_t *)&raw)); |
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289 | |
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290 | *current = raw * dev->i_lsb; |
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291 | |
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292 | return ESP_OK; |
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293 | } |
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294 | |
1c9894662795
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295 | esp_err_t ina219_get_power(ina219_t *dev, float *power) |
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296 | { |
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297 | CHECK_ARG(dev && power); |
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298 | |
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299 | int16_t raw; |
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300 | CHECK(read_reg_16(dev, REG_POWER, (uint16_t *)&raw)); |
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301 | |
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302 | *power = raw * dev->p_lsb; |
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303 | |
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304 | return ESP_OK; |
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305 | } |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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306 |