Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
1
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.
Michiel Broek <mbroek@mbse.eu>
parents:
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2 | * Copyright (c) 2016 Grzegorz Hetman <ghetman@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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3 | * Copyright (c) 2016 Alex Stewart <foogod@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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4 | * Copyright (c) 2018 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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parents:
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5 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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6 | * Redistribution and use in source and binary forms, with or without |
1c9894662795
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7 | * 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.
Michiel Broek <mbroek@mbse.eu>
parents:
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8 | * |
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 | * 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>
parents:
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10 | * 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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11 | * 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>
parents:
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12 | * 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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13 | * 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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14 | * 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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15 | * 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.
Michiel Broek <mbroek@mbse.eu>
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16 | * specific prior written permission. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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17 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
1c9894662795
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19 | * 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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20 | * 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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21 | * 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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22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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23 | * 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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24 | * 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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25 | * 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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26 | * 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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27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
1c9894662795
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28 | */ |
1c9894662795
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29 | |
1c9894662795
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30 | /** |
1c9894662795
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31 | * @file ds18x20.c |
1c9894662795
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32 | * |
1c9894662795
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33 | * ESP-IDF driver for the DS18S20/DS18B20 one-wire temperature sensor ICs |
1c9894662795
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34 | * |
1c9894662795
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35 | * Ported from esp-open-rtos |
1c9894662795
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36 | * |
1c9894662795
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37 | * Copyright (c) 2016 Grzegorz Hetman <ghetman@gmail.com>\n |
1c9894662795
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38 | * Copyright (c) 2016 Alex Stewart <foogod@gmail.com>\n |
1c9894662795
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39 | * Copyright (c) 2018 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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40 | * |
1c9894662795
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41 | * BSD Licensed as described in the file LICENSE |
1c9894662795
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42 | */ |
1c9894662795
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43 | |
1c9894662795
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44 | #include <math.h> |
1c9894662795
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45 | #include <esp_log.h> |
1c9894662795
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46 | #include <freertos/FreeRTOS.h> |
1c9894662795
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47 | #include <freertos/task.h> |
1c9894662795
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48 | #include <esp_idf_lib_helpers.h> |
1c9894662795
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49 | #include "ds18x20.h" |
1c9894662795
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50 | |
1c9894662795
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51 | #define ds18x20_WRITE_SCRATCHPAD 0x4E |
1c9894662795
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52 | #define ds18x20_READ_SCRATCHPAD 0xBE |
1c9894662795
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53 | #define ds18x20_COPY_SCRATCHPAD 0x48 |
1c9894662795
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54 | #define ds18x20_READ_EEPROM 0xB8 |
1c9894662795
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55 | #define ds18x20_READ_PWRSUPPLY 0xB4 |
1c9894662795
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56 | #define ds18x20_SEARCHROM 0xF0 |
1c9894662795
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57 | #define ds18x20_SKIP_ROM 0xCC |
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58 | #define ds18x20_READROM 0x33 |
1c9894662795
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59 | #define ds18x20_MATCHROM 0x55 |
1c9894662795
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60 | #define ds18x20_ALARMSEARCH 0xEC |
1c9894662795
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61 | #define ds18x20_CONVERT_T 0x44 |
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62 | |
1c9894662795
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63 | #define SLEEP_MS(x) vTaskDelay(((x) + portTICK_PERIOD_MS - 1) / portTICK_PERIOD_MS) |
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64 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
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65 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
1c9894662795
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66 | |
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67 | #if HELPER_TARGET_IS_ESP32 |
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68 | static portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED; |
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69 | #define PORT_ENTER_CRITICAL portENTER_CRITICAL(&mux) |
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70 | #define PORT_EXIT_CRITICAL portEXIT_CRITICAL(&mux) |
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71 | |
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72 | #elif HELPER_TARGET_IS_ESP8266 |
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73 | #define PORT_ENTER_CRITICAL portENTER_CRITICAL() |
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74 | #define PORT_EXIT_CRITICAL portEXIT_CRITICAL() |
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75 | #endif |
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76 | |
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77 | static const char *TAG = "ds18x20"; |
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78 | |
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79 | esp_err_t ds18x20_measure(gpio_num_t pin, ds18x20_addr_t addr, bool wait) |
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80 | { |
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81 | if (!onewire_reset(pin)) |
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82 | return ESP_ERR_INVALID_RESPONSE; |
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83 | |
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84 | if (addr == DS18X20_ANY) |
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85 | onewire_skip_rom(pin); |
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86 | else |
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87 | onewire_select(pin, addr); |
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88 | |
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89 | PORT_ENTER_CRITICAL; |
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90 | onewire_write(pin, ds18x20_CONVERT_T); |
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91 | // For parasitic devices, power must be applied within 10us after issuing |
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92 | // the convert command. |
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93 | onewire_power(pin); |
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94 | PORT_EXIT_CRITICAL; |
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95 | |
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96 | if (wait) |
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97 | { |
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98 | SLEEP_MS(750); |
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99 | onewire_depower(pin); |
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100 | } |
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101 | |
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102 | return ESP_OK; |
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103 | } |
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104 | |
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105 | esp_err_t ds18x20_read_scratchpad(gpio_num_t pin, ds18x20_addr_t addr, uint8_t *buffer) |
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106 | { |
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107 | CHECK_ARG(buffer); |
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108 | |
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109 | uint8_t crc; |
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110 | uint8_t expected_crc; |
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111 | |
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112 | if (!onewire_reset(pin)) |
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113 | return ESP_ERR_INVALID_RESPONSE; |
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114 | |
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115 | if (addr == DS18X20_ANY) |
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116 | onewire_skip_rom(pin); |
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117 | else |
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118 | onewire_select(pin, addr); |
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119 | onewire_write(pin, ds18x20_READ_SCRATCHPAD); |
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120 | |
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121 | for (int i = 0; i < 8; i++) |
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122 | buffer[i] = onewire_read(pin); |
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123 | crc = onewire_read(pin); |
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124 | |
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125 | expected_crc = onewire_crc8(buffer, 8); |
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126 | if (crc != expected_crc) |
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127 | { |
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128 | ESP_LOGE(TAG, "CRC check failed reading scratchpad: %02x %02x %02x %02x %02x %02x %02x %02x : %02x (expected %02x)", buffer[0], buffer[1], |
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129 | buffer[2], buffer[3], buffer[4], buffer[5], buffer[6], buffer[7], crc, expected_crc); |
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130 | return ESP_ERR_INVALID_CRC; |
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131 | } |
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132 | |
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133 | return ESP_OK; |
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134 | } |
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135 | |
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136 | esp_err_t ds18x20_write_scratchpad(gpio_num_t pin, ds18x20_addr_t addr, uint8_t *buffer) |
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137 | { |
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138 | CHECK_ARG(buffer); |
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139 | |
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140 | if (!onewire_reset(pin)) |
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141 | return ESP_ERR_INVALID_RESPONSE; |
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142 | |
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143 | if (addr == DS18X20_ANY) |
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144 | onewire_skip_rom(pin); |
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145 | else |
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146 | onewire_select(pin, addr); |
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147 | onewire_write(pin, ds18x20_WRITE_SCRATCHPAD); |
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148 | |
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149 | for (int i = 0; i < 3; i++) |
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150 | onewire_write(pin, buffer[i]); |
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151 | |
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152 | return ESP_OK; |
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153 | } |
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154 | |
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155 | esp_err_t ds18x20_copy_scratchpad(gpio_num_t pin, ds18x20_addr_t addr) |
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156 | { |
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157 | if (!onewire_reset(pin)) |
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158 | return ESP_ERR_INVALID_RESPONSE; |
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159 | |
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160 | if (addr == DS18X20_ANY) |
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161 | onewire_skip_rom(pin); |
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162 | else |
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163 | onewire_select(pin, addr); |
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164 | |
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165 | PORT_ENTER_CRITICAL; |
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166 | onewire_write(pin, ds18x20_COPY_SCRATCHPAD); |
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167 | // For parasitic devices, power must be applied within 10us after issuing |
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168 | // the convert command. |
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169 | onewire_power(pin); |
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170 | PORT_EXIT_CRITICAL; |
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171 | |
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172 | // And then it needs to keep that power up for 10ms. |
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173 | SLEEP_MS(10); |
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174 | onewire_depower(pin); |
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175 | |
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176 | return ESP_OK; |
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177 | } |
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178 | |
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179 | esp_err_t ds18b20_read_temperature(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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180 | { |
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181 | CHECK_ARG(temperature); |
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182 | |
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183 | uint8_t scratchpad[8]; |
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184 | int16_t temp; |
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185 | |
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186 | CHECK(ds18x20_read_scratchpad(pin, addr, scratchpad)); |
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187 | |
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188 | temp = scratchpad[1] << 8 | scratchpad[0]; |
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189 | |
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190 | *temperature = ((float)temp * 625.0) / 10000; |
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191 | |
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192 | return ESP_OK; |
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193 | } |
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194 | |
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195 | esp_err_t ds18s20_read_temperature(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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196 | { |
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197 | CHECK_ARG(temperature); |
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198 | |
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199 | uint8_t scratchpad[8]; |
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200 | int16_t temp; |
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201 | |
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202 | CHECK(ds18x20_read_scratchpad(pin, addr, scratchpad)); |
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203 | |
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204 | temp = scratchpad[1] << 8 | scratchpad[0]; |
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205 | |
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206 | temp = ((temp & 0xfffe) << 3) + (16 - scratchpad[6]) - 4; |
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207 | *temperature = ((float)temp * 625.0) / 10000 - 0.25; |
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208 | |
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209 | return ESP_OK; |
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210 | } |
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211 | |
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212 | esp_err_t ds18x20_read_temperature(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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213 | { |
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214 | if ((uint8_t)addr == DS18B20_FAMILY_ID) { |
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215 | return ds18b20_read_temperature(pin, addr, temperature); |
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216 | } |
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217 | else |
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218 | { |
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219 | return ds18s20_read_temperature(pin, addr, temperature); |
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220 | } |
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221 | } |
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222 | |
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223 | esp_err_t ds18b20_measure_and_read(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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224 | { |
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225 | CHECK_ARG(temperature); |
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226 | |
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227 | CHECK(ds18x20_measure(pin, addr, true)); |
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228 | return ds18b20_read_temperature(pin, addr, temperature); |
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229 | } |
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230 | |
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231 | esp_err_t ds18s20_measure_and_read(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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232 | { |
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233 | CHECK_ARG(temperature); |
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234 | |
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235 | CHECK(ds18x20_measure(pin, addr, true)); |
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236 | return ds18s20_read_temperature(pin, addr, temperature); |
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237 | } |
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238 | |
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239 | esp_err_t ds18x20_measure_and_read(gpio_num_t pin, ds18x20_addr_t addr, float *temperature) |
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240 | { |
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241 | CHECK_ARG(temperature); |
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242 | |
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243 | CHECK(ds18x20_measure(pin, addr, true)); |
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244 | return ds18x20_read_temperature(pin, addr, temperature); |
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245 | } |
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246 | |
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247 | esp_err_t ds18x20_measure_and_read_multi(gpio_num_t pin, ds18x20_addr_t *addr_list, size_t addr_count, float *result_list) |
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248 | { |
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249 | CHECK_ARG(result_list && addr_count); |
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250 | |
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251 | CHECK(ds18x20_measure(pin, DS18X20_ANY, true)); |
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252 | |
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253 | return ds18x20_read_temp_multi(pin, addr_list, addr_count, result_list); |
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254 | } |
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255 | |
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256 | esp_err_t ds18x20_scan_devices(gpio_num_t pin, ds18x20_addr_t *addr_list, size_t addr_count, size_t *found) |
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257 | { |
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258 | CHECK_ARG(addr_list && addr_count); |
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259 | |
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260 | onewire_search_t search; |
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261 | onewire_addr_t addr; |
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262 | |
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263 | *found = 0; |
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264 | onewire_search_start(&search); |
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265 | while ((addr = onewire_search_next(&search, pin)) != ONEWIRE_NONE) |
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266 | { |
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267 | uint8_t family_id = (uint8_t)addr; |
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268 | if (family_id == DS18B20_FAMILY_ID || family_id == DS18S20_FAMILY_ID) |
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269 | { |
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270 | if (*found < addr_count) |
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271 | addr_list[*found] = addr; |
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272 | *found += 1; |
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273 | } |
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274 | } |
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275 | |
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276 | return ESP_OK; |
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277 | } |
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278 | |
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279 | esp_err_t ds18x20_read_temp_multi(gpio_num_t pin, ds18x20_addr_t *addr_list, size_t addr_count, float *result_list) |
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280 | { |
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281 | CHECK_ARG(result_list); |
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282 | |
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283 | esp_err_t res = ESP_OK; |
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284 | for (size_t i = 0; i < addr_count; i++) |
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285 | { |
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286 | esp_err_t tmp = ds18x20_read_temperature(pin, addr_list[i], &result_list[i]); |
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287 | if (tmp != ESP_OK) |
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288 | res = tmp; |
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289 | } |
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290 | return res; |
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291 | } |
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292 |