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comparison: main/task_ina219.c

main/task_ina219.c

changeset 28
5872b972e553
parent 24
74609f70411e
child 30
7448b8dd4288
equal deleted inserted replaced
27:53d6ecf5829b 28:5872b972e553
41 /* 41 /*
42 * Task to read INA219 sensors on request. 42 * Task to read INA219 sensors on request.
43 */ 43 */
44 void task_ina219(void *pvParameter) 44 void task_ina219(void *pvParameter)
45 { 45 {
46 float bus_voltage, shunt_voltage, current; 46 float bus_voltage, shunt_voltage;
47 47
48 ESP_LOGI(TAG, "Starting task INA219 sda=%d scl=%d", CONFIG_I2C_MASTER_SDA, CONFIG_I2C_MASTER_SCL); 48 ESP_LOGI(TAG, "Starting task INA219 sda=%d scl=%d", CONFIG_I2C_MASTER_SDA, CONFIG_I2C_MASTER_SCL);
49 ina219_state = malloc(sizeof(INA219_State)); 49 ina219_state = malloc(sizeof(INA219_State));
50 50
51 ina219_state->Battery.valid = false; 51 ina219_state->Battery.valid = false;
95 * 3. Only solar sensor. Use scenario 4, but show measured values. 95 * 3. Only solar sensor. Use scenario 4, but show measured values.
96 * 4. Fake everything. 96 * 4. Fake everything.
97 */ 97 */
98 if (! ina219_state->Battery.fake) { 98 if (! ina219_state->Battery.fake) {
99 /* 99 /*
100 * Note, on Arduino power down and resume works, but not on esp-idf.
101 * This could save only 0.5 mA per device.
102 *
103 * We run the ESP32-C3 in Power Save mode, Dynamic Frequency Scaling. 100 * We run the ESP32-C3 in Power Save mode, Dynamic Frequency Scaling.
104 * This means a wrong current measurement (too high) unless we let the CPU 101 * This means a wrong current measurement (too high) unless we let the CPU
105 * rest for a while. The INA219 runs in continuous mode so we get the 102 * rest for a while. The INA219 runs in continuous mode so we get the
106 * results during the vTaskDelay(). 103 * results during the vTaskDelay().
107 */ 104 */
108 vTaskDelay(20 / portTICK_PERIOD_MS); 105 ESP_ERROR_CHECK(ina219_configure(&ina219_b_dev, INA219_BUS_RANGE_32V, INA219_GAIN_0_125,
106 INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_CONT_SHUNT_BUS));
107 vTaskDelay(10 / portTICK_PERIOD_MS);
109 ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_b_dev, &bus_voltage)); 108 ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_b_dev, &bus_voltage));
110 vTaskDelay(10 / portTICK_PERIOD_MS); 109 vTaskDelay(10 / portTICK_PERIOD_MS);
111 ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_b_dev, &shunt_voltage)); 110 ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_b_dev, &shunt_voltage));
112 vTaskDelay(10 / portTICK_PERIOD_MS); 111 /*
113 ESP_ERROR_CHECK(ina219_get_current(&ina219_b_dev, &current)); 112 * We don't call ina219_get_current(&ina219_b_dev, &current) because it takes
114 ESP_LOGI(TAG, "Battery VBUS: %.04f V, VSHUNT: %.04f mV, IBUS: %.04f mA", bus_voltage, shunt_voltage * 1000, current * 1000); 113 * a new measurement which usual gives the same results as the shunt voltage.
114 * So just calculate the current.
115 */
116 ESP_ERROR_CHECK(ina219_configure(&ina219_b_dev, INA219_BUS_RANGE_32V, INA219_GAIN_0_125,
117 INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_POWER_DOWN));
118 ESP_LOGI(TAG, "Battery VBUS: %.03f V, VSHUNT: %.02f mV, IBUS: %.01f mA", bus_voltage, shunt_voltage * 1000, shunt_voltage * 10000);
115 } 119 }
116 if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) { 120 if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) {
117 if (ina219_state->Battery.fake) { 121 if (ina219_state->Battery.fake) {
118 ina219_state->Battery.volts = 13.21; 122 ina219_state->Battery.volts = 13.21;
119 if (ready_WiFi()) { 123 if (ready_WiFi()) {
124 ina219_state->Battery.current = 18.2; 128 ina219_state->Battery.current = 18.2;
125 } 129 }
126 } else { 130 } else {
127 ina219_state->Battery.volts = bus_voltage; 131 ina219_state->Battery.volts = bus_voltage;
128 ina219_state->Battery.shunt = shunt_voltage; 132 ina219_state->Battery.shunt = shunt_voltage;
129 ina219_state->Battery.current = current * 1000; 133 ina219_state->Battery.current = shunt_voltage * 10000;
130 } 134 }
131 ina219_state->Battery.valid = true; 135 ina219_state->Battery.valid = true;
132 xSemaphoreGive(xSemaphoreINA219); 136 xSemaphoreGive(xSemaphoreINA219);
133 } 137 }
134 138
135 if (! ina219_state->Solar.fake) { 139 if (! ina219_state->Solar.fake) {
136 vTaskDelay(20 / portTICK_PERIOD_MS); 140 ESP_ERROR_CHECK(ina219_configure(&ina219_s_dev, INA219_BUS_RANGE_32V, INA219_GAIN_0_125,
141 INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_CONT_SHUNT_BUS));
142 vTaskDelay(10 / portTICK_PERIOD_MS);
137 ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_s_dev, &bus_voltage)); 143 ESP_ERROR_CHECK(ina219_get_bus_voltage(&ina219_s_dev, &bus_voltage));
138 vTaskDelay(10 / portTICK_PERIOD_MS); 144 vTaskDelay(10 / portTICK_PERIOD_MS);
139 ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_s_dev, &shunt_voltage)); 145 ESP_ERROR_CHECK(ina219_get_shunt_voltage(&ina219_s_dev, &shunt_voltage));
140 vTaskDelay(10 / portTICK_PERIOD_MS); 146 ESP_ERROR_CHECK(ina219_configure(&ina219_s_dev, INA219_BUS_RANGE_32V, INA219_GAIN_0_125,
141 ESP_ERROR_CHECK(ina219_get_current(&ina219_s_dev, &current)); 147 INA219_RES_12BIT_1S, INA219_RES_12BIT_1S, INA219_MODE_POWER_DOWN));
142 ESP_LOGI(TAG, " Solar VBUS: %.04f V, VSHUNT: %.04f mV, IBUS: %.04f mA", bus_voltage, shunt_voltage * 1000, current * 1000); 148 ESP_LOGI(TAG, " Solar VBUS: %.03f V, VSHUNT: %.02f mV, IBUS: %.01f mA", bus_voltage, shunt_voltage * 1000, shunt_voltage * 10000);
143 } 149 }
144 if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) { 150 if (xSemaphoreTake(xSemaphoreINA219, 25) == pdTRUE) {
145 if (! ina219_state->Solar.fake && ! ina219_state->Battery.fake) { 151 if (! ina219_state->Solar.fake && ! ina219_state->Battery.fake) {
146 ina219_state->Solar.volts = bus_voltage; 152 ina219_state->Solar.volts = bus_voltage;
147 ina219_state->Solar.shunt = shunt_voltage; 153 ina219_state->Solar.shunt = shunt_voltage;
148 ina219_state->Solar.current = current * 1000; 154 ina219_state->Solar.current = shunt_voltage * 10000;
149 } else if (ina219_state->Solar.fake && ! ina219_state->Battery.fake) { 155 } else if (ina219_state->Solar.fake && ! ina219_state->Battery.fake) {
150 ina219_state->Solar.volts = ina219_state->Battery.volts + 0.78; 156 ina219_state->Solar.volts = ina219_state->Battery.volts + 0.78;
151 ina219_state->Solar.shunt = 0.02341; 157 ina219_state->Solar.shunt = 0.02341;
152 ina219_state->Solar.current = 234.1; 158 ina219_state->Solar.current = 234.1;
153 } else { 159 } else {

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