adding stuff from pi

.gitignore

@@ -1,24 +0,0 @@
-### Project Specific
-# Files
-*.a
-*.o
-*.log
-
-# Directories
-
-### Editor Specific
-# Files
-temperatureRecorder.sublime-project
-temperatureRecorder.sublime-workspace
-
-# Directories
-.idea
-.vscode
-
-### System Specific
-# Files
-.DS_Store
-Thumbs.db
-
-# Directories
-__MACOSX

bin/Debug/.gitignore

@@ -1,2 +0,0 @@
-*
-!.gitignore

bin/Release/.gitignore

@@ -1,2 +0,0 @@
-*
-!.gitignore

readings_2024-02-26.json

@@ -0,0 +1 @@
+{}{ "09_49_44": { "temperature": { "celsius": 23.462168825045229, "fahrenheit": 74.231903885081408 }, "pressure": { "pascals": 68096.059937644299, "millibars": 680.96059937644304 }, "humidity_percent": 87.599591275460014 } }{ "10_59_25": { "temperature": { "celsius": 23.462168825045229, "fahrenheit": 74.231903885081408 }, "pressure": { "pascals": 68096.059937644299, "millibars": 680.96059937644304 }, "humidity_percent": 87.599591275460014 } }

src/main.c

@@ -211,8 +211,8 @@ int8_t read_sensor_data_normal_mode(struct bme280_dev *dev)
     readings_result = bme280_set_sensor_settings(settings_sel, dev);
     readings_result = bme280_set_sensor_mode(BME280_NORMAL_MODE, dev);
     readings_result = bme280_get_sensor_data(BME280_ALL, &sensor_readings_data, dev);
-    //print_sensor_data(&sensor_readings_data);
-    save_data_to_json_file(&sensor_readings_data);
+    print_sensor_data(&sensor_readings_data);
+    //save_data_to_json_file(&sensor_readings_data);
 
     return readings_result;
 }

src/second.c

@@ -0,0 +1,125 @@
+/**
+ *
+ */
+
+#include "bme280/bme280.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <linux/i2c-dev.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <time.h>
+
+#define IIC_Dev  "/dev/i2c-1"
+
+int file_descriptor; // maybe file descriptor? example had it as 'fd'
+
+void user_delay_ms(uint32_t period)
+{
+  usleep(period*1000);
+}
+
+double celsius_to_fahrenheit(double celsius)
+{
+    return (celsius * 1.8) + 32;
+}
+
+double pascals_to_mbar(double pascals)
+{
+    return pascals / 100;
+}
+
+int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
+{
+    write(file_descriptor, &reg_addr, 1);
+    read(file_descriptor, data, len);
+    return 0;
+}
+
+int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
+{
+    int8_t *buf;
+    buf = malloc(len +1);
+    buf[0] = reg_addr;
+    memcpy(buf +1, data, len);
+    write(file_descriptor, buf, len +1);
+    free(buf);
+    return 0;
+}
+
+void print_sensor_data(struct bme280_data *sensor_readings_data)
+{
+printf("print_sensor_data\n\n");
+#ifdef BME280_FLOAT_ENABLE
+    double fahrenheit = celsius_to_fahrenheit(sensor_readings_data->temperature);
+    double celsius = sensor_readings_data->temperature;
+    double pascals = sensor_readings_data->pressure;
+    double millibars = pascals_to_mbar(sensor_readings_data->pressure);
+    double humidity = sensor_readings_data->humidity;
+    printf("%0.2f\xc2\xb0\x46 / %0.2f\xc2\xb0\x43, %0.2fPa, %0.2fmbar, %0.2f%% \r\n", fahrenheit, celsius, pascals, millibars, humidity);
+#else
+    uint32_t fahrenheit = celsius_to_fahrenheit(sensor_readings_data->temperature);
+    uint32_t celsius = sensor_readings_data->temperature;
+    uint32_t pascals = sensor_readings_data->pressure;
+    uint32_t millibars = pascals_to_mbar(sensor_readings_data->pressure);
+    uint32_t humidity = sensor_readings_data->humidity;
+    printf("%ld\xc2\xb0\x46 / %ld\xc2\xb0\x43, %ldPa, %ldmbar, %ld%% \r\n", fahrenheit, celsius, pascals, millibars, humidity);
+#endif
+}
+
+int8_t read_sensor_data_normal_mode(struct bme280_dev *dev)
+{
+    int8_t readings_result;
+    uint8_t settings_sel;
+    struct bme280_data sensor_readings_data;
+printf("read_sensor_data_normal_mode\n\n");
+    /* Recommended mode of operation: Indoor navigation */
+    dev->settings.osr_h = BME280_OVERSAMPLING_1X;
+    dev->settings.osr_p = BME280_OVERSAMPLING_16X;
+    dev->settings.osr_t = BME280_OVERSAMPLING_2X;
+    dev->settings.filter = BME280_FILTER_COEFF_16;
+    dev->settings.standby_time = BME280_STANDBY_TIME_62_5_MS;
+
+    settings_sel = BME280_OSR_PRESS_SEL;
+    settings_sel |= BME280_OSR_TEMP_SEL;
+    settings_sel |= BME280_OSR_HUM_SEL;
+    settings_sel |= BME280_STANDBY_SEL;
+    settings_sel |= BME280_FILTER_SEL;
+    readings_result = bme280_set_sensor_settings(settings_sel, dev);
+    readings_result = bme280_set_sensor_mode(BME280_NORMAL_MODE, dev);
+    readings_result = bme280_get_sensor_data(BME280_ALL, &sensor_readings_data, dev);
+    print_sensor_data(&sensor_readings_data);
+    //save_data_to_csv_file(&sensor_readings_data);
+
+    return readings_result;
+}
+
+int main(int argc, char* argv[])
+{
+    struct bme280_dev dev;
+    int8_t init_result = BME280_OK;
+
+    dev.dev_id = BME280_I2C_ADDR_PRIM; //0x76
+    //dev.dev_id = BME280_I2C_ADDR_SEC; //0x77
+    dev.intf = BME280_I2C_INTF;
+    dev.read = user_i2c_read;
+    dev.write = user_i2c_write;
+    dev.delay_ms = user_delay_ms;
+printf("starting up\n\n");
+    init_result = bme280_init(&dev);
+//printf("got init_result\n");
+    //if (init_result != 0) {
+//        printf("\n\nBME280 Init Result is: %d\n\n", init_result);
+    //    return 1;
+    //}
+//printf("before read sensor data\n\n");
+//    read_sensor_data_normal_mode(&dev);
+    
+    printf("Recorded readings.\n\n");
+
+    return 0;
+}
+