95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#include <zephyr/kernel.h>
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#include <zephyr/logging/log.h>
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#include <zephyr/device.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/sys/printk.h>
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#include <zephyr/drivers/sensor/sht4x.h>
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#include <zephyr/drivers/gpio.h>
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#include <stdio.h>
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#include <lora/lorawan.h>
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#include <sensors/mlx90614.h>
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#include <sensors/sht4x.h>
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#include <gpio.h>
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LOG_MODULE_REGISTER(g2h_heat_main);
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volatile bool relais_state = false;
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volatile bool relais_manual_override = false;
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volatile uint8_t temperature_threshold = 21;
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volatile uint8_t floor_temp_threshold = 24;
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volatile uint32_t send_interval_minutes = 10;
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/* MAIN */
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int main(void)
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{
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printk("=== Device starting ===\n");
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LOG_INF("G2H Heat Control starting...");
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/* Initialization */
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init_gpio();
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init_mlx90614();
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init_sht4x();
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init_lorawan();
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// join_network_otaa();
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join_network_abp();
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float humidity, temp, floor_temp;
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while (true)
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{
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/* Get stable values from sensors */
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humidity = get_stable_value_sht4x(SENSOR_CHAN_HUMIDITY);
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temp = get_stable_value_sht4x(SENSOR_CHAN_AMBIENT_TEMP);
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printk("hum: %d.%02d%%\n", (int)humidity, (int)(humidity * 100) % 100);
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printk("temp: %d.%02d °C\n", (int)temp, (int)(temp * 100) % 100);
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/* Try MLX sensor with stable measurement (10 samples) */
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floor_temp = get_stable_value_mlx90614(MLX90614_IR_TEMP_ADDR);
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if (mlx90614_sensor_available)
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{
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LOG_INF("MLX stable measurement: %d.%02d °C", (int)floor_temp, (int)(floor_temp * 100) % 100);
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}
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else
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{
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LOG_WRN("MLX sensor not available");
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}
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printk("floor_temp: %d.%02d °C (available: %s)\n",
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(int)floor_temp, (int)(floor_temp * 100) % 100,
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mlx90614_sensor_available ? "YES" : "NO");
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/* Set relais based on temperature if not manually overridden */
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if (!relais_manual_override)
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{
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bool temp_condition = temp < temperature_threshold;
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bool floor_condition = true; // Default: ignore floor temp if sensor not available
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// Only check floor temperature if MLX sensor is working
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if (mlx90614_sensor_available)
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{
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floor_condition = floor_temp < floor_temp_threshold;
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}
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if (temp_condition && floor_condition)
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{
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relais_state = 1; // Heat on below thresholds
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}
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else
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{
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relais_state = 0; // Heat off if any threshold exceeded
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}
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set_relais_state(relais_state);
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}
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printk("relais: %d (manual: %d, temp_th: %d°C, floor_th: %d°C)\n",
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relais_state, relais_manual_override, temperature_threshold, floor_temp_threshold);
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/* Pack and send values */
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char data[7];
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create_data_package(data, temp, floor_temp, humidity, relais_state);
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LOG_HEXDUMP_DBG(data, 7, "data");
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send_data_packet(data, 7);
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/* Delay until next cycle */
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k_sleep(K_MINUTES(send_interval_minutes));
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}
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} |