j3d1/esp-open-rtos
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

I2C bus upgrade (#432)

Browse source
This commit is contained in:
Zaltora 2017-09-01 06:29:32 -03:00 • committed by Ruslan V. Uss
parent d100f42b1f
commit b83c2629b9
56 changed files with 909 additions and 804 deletions
Download patch file Download diff file Expand all files Collapse all files

1
examples/ad770x/main.c
View file

@ -8,7 +8,6 @@
#include <esp/uart.h>
#include <espressif/esp_common.h>
#include <stdio.h>
#include <i2c/i2c.h>
#include <ad770x/ad770x.h>
#include <FreeRTOS.h>
#include <task.h>

19
examples/ads1115_test/main.c
View file

@ -17,6 +17,7 @@
// Connect ADDR pin to GND
#define ADDR ADS111X_ADDR_GND
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -28,23 +29,27 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
ads111x_set_mode(ADDR, ADS111X_MODE_CONTUNOUS);
ads111x_set_data_rate(ADDR, ADS111X_DATA_RATE_32);
ads111x_set_mode(&dev, ADS111X_MODE_CONTUNOUS);
ads111x_set_data_rate(&dev, ADS111X_DATA_RATE_32);
ads111x_set_input_mux(ADDR, ADS111X_MUX_0_GND);
ads111x_set_gain(ADDR, GAIN);
ads111x_set_input_mux(&dev, ADS111X_MUX_0_GND);
ads111x_set_gain(&dev, GAIN);
float gain_val = ads111x_gain_values[GAIN];
while (true)
{
// wait for conversion end
while (ads111x_busy(ADDR)) {}
while (ads111x_busy(&dev)) {}
// Read result
int16_t raw = ads111x_get_value(ADDR);
int16_t raw = ads111x_get_value(&dev);
float voltage = gain_val / ADS111X_MAX_VALUE * raw;

13
examples/bh1750/bh1750_example.c
View file

@ -11,17 +11,20 @@
#define SCL_PIN 5
#define SDA_PIN 4
#define I2C_BUS 0
static void measure(void *pvParameters)
{
bh1750_configure(BH1750_ADDR_LO,
BH1750_CONTINUOUS_MODE | BH1750_HIGH_RES_MODE);
i2c_dev_t dev = {
.addr = BH1750_ADDR_LO,
.bus = I2C_BUS,
};
bh1750_configure(&dev, BH1750_CONTINUOUS_MODE | BH1750_HIGH_RES_MODE);
while (1) {
while(1) {
vTaskDelay(200 / portTICK_PERIOD_MS);
printf("Lux: %d\n", bh1750_read(BH1750_ADDR_LO));
printf("Lux: %d\n", bh1750_read(&dev));
}
}
}
@ -35,7 +38,7 @@ void user_init(void)
printf("SDK version : %s\n", sdk_system_get_sdk_version());
printf("GIT version : %s\n", GITSHORTREV);
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
xTaskCreate(measure, "measure_task", 256, NULL, 2, NULL);
}

20
examples/bmp180_i2c/bmp180_i2c.c
View file

@ -13,18 +13,25 @@
// BMP180 driver
#include "bmp180/bmp180.h"
#define MY_EVT_TIMER 0x01
#define MY_EVT_BMP180 0x02
#define I2C_BUS 0
#define SCL_PIN GPIO_ID_PIN((0))
#define SDA_PIN GPIO_ID_PIN((2))
#define MY_EVT_TIMER 0x01
#define MY_EVT_BMP180 0x02
typedef struct
{
uint8_t event_type;
bmp180_result_t bmp180_data;
} my_event_t;
//device descriptor
i2c_dev_t dev = {
.addr = BMP180_DEVICE_ADDRESS,
.bus = I2C_BUS,
};
// Communication Queue
static QueueHandle_t mainqueue;
static TimerHandle_t timerHandle;
@ -70,7 +77,7 @@ void bmp180_task(void *pvParameters)
case MY_EVT_TIMER:
printf("%s: Received Timer Event\n", __FUNCTION__);
bmp180_trigger_measurement(com_queue);
bmp180_trigger_measurement(&dev, com_queue);
break;
case MY_EVT_BMP180:
printf("%s: Received BMP180 Event temp:=%d.%dC press=%d.%02dhPa\n", __FUNCTION__, \
@ -91,6 +98,9 @@ void user_setup(void)
// Give the UART some time to settle
sdk_os_delay_us(500);
// Init I2C bus Interface
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
}
void user_init(void)
@ -107,7 +117,7 @@ void user_init(void)
bmp180_informUser = bmp180_i2c_informUser;
// Init BMP180 Interface
bmp180_init(SCL_PIN, SDA_PIN);
bmp180_init(&dev);
// Create Main Communication Queue
mainqueue = xQueueCreate(10, sizeof(my_event_t));

12
examples/bmp280/bmp280_example.c
View file

@ -10,9 +10,9 @@
#include "bmp280/bmp280.h"
// In forced mode user initiate measurement each time.
// In normal mode measurement is done continuously with specified standby time.
// In normal mode measurement is done continuously with specified standby time.
// #define MODE_FORCED
const uint8_t i2c_bus = 0;
const uint8_t scl_pin = 0;
const uint8_t sda_pin = 2;
@ -26,7 +26,8 @@ static void bmp280_task_forced(void *pvParameters)
params.mode = BMP280_MODE_FORCED;
bmp280_t bmp280_dev;
bmp280_dev.i2c_addr = BMP280_I2C_ADDRESS_0;
bmp280_dev.i2c_dev.bus = i2c_bus;
bmp280_dev.i2c_dev.addr = BMP280_I2C_ADDRESS_0;
while (1) {
while (!bmp280_init(&bmp280_dev, &params)) {
@ -67,7 +68,8 @@ static void bmp280_task_normal(void *pvParameters)
bmp280_init_default_params(&params);
bmp280_t bmp280_dev;
bmp280_dev.i2c_addr = BMP280_I2C_ADDRESS_0;
bmp280_dev.i2c_dev.bus = i2c_bus;
bmp280_dev.i2c_dev.addr = BMP280_I2C_ADDRESS_0;
while (1) {
while (!bmp280_init(&bmp280_dev, &params)) {
@ -103,7 +105,7 @@ void user_init(void)
printf("SDK version : %s\n", sdk_system_get_sdk_version());
printf("GIT version : %s\n", GITSHORTREV);
i2c_init(scl_pin, sda_pin);
i2c_init(i2c_bus, scl_pin, sda_pin, I2C_FREQ_400K);
#ifdef MODE_FORCED
xTaskCreate(bmp280_task_forced, "bmp280_task", 256, NULL, 2, NULL);

13
examples/ds1307/main.c
View file

@ -11,6 +11,7 @@
#include <ds1307/ds1307.h>
#include <stdio.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -19,8 +20,12 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
ds1307_start(true);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_400K);
i2c_dev_t dev = {
.addr = DS1307_ADDR,
.bus = I2C_BUS,
};
ds1307_start(&dev, true);
// setup datetime: 2016-10-09 13:50:10
struct tm time = {
@ -31,11 +36,11 @@ void user_init(void)
.tm_min = 50,
.tm_sec = 10
};
ds1307_set_time(&time);
ds1307_set_time(&dev, &time);
while (true)
{
ds1307_get_time(&time);
ds1307_get_time(&dev, &time);
printf("%04d-%02d-%02d %02d:%02d:%02d\n", time.tm_year, time.tm_mon + 1,
time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec);

16
examples/ds3231_test/ds3231_test.c
View file

@ -1,4 +1,4 @@
/* Test code for DS3231 high precision RTC module
/* Test code for DS3231 high precision RTC module
*
* Part of esp-open-rtos
* Copyright (C) 2016 Bhuvanchandra DV <bhuvanchandra.dv@gmail.com>
@ -12,15 +12,21 @@
#include "ds3231/ds3231.h"
#define ADDR DS3231_ADDR
#define I2C_BUS 0
void task1(void *pvParameters)
{
struct tm time;
float tempFloat;
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
while(1) {
vTaskDelay(100);
ds3231_getTime(&time);
ds3231_getTempFloat(&tempFloat);
ds3231_getTime(&dev, &time);
ds3231_getTempFloat(&dev, &tempFloat);
printf("TIME:%d:%d:%d, TEMPERATURE:%.2f DegC\r\n", time.tm_hour, time.tm_min, time.tm_sec, tempFloat);
}
}
@ -35,7 +41,7 @@ void user_init(void)
printf("SDK version : %s\n", sdk_system_get_sdk_version());
printf("GIT version : %s\n", GITSHORTREV);
ds3231_Init(scl, sda);
i2c_init(0,scl,sda,I2C_FREQ_400K);
xTaskCreate(task1, "tsk1", 256, NULL, 2, NULL);
}

9
examples/fatfs_rtc/main.c
View file

@ -18,6 +18,7 @@
#define CS_GPIO_PIN 2
// ds1307
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -29,7 +30,11 @@
uint32_t get_fattime()
{
struct tm time;
ds1307_get_time(&time);
i2c_dev_t dev = {
.addr = DS1307_ADDR,
.bus = I2C_BUS,
};
ds1307_get_time(&dev, &time);
return ((uint32_t)(time.tm_year - 1980) << 25)
| ((uint32_t)time.tm_mon << 21)
@ -127,7 +132,7 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
i2c_init (SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_400K);
xTaskCreate(rewrite_file_task, "task1", 512, NULL, 2, NULL);
}

19
examples/hmc5883l/main.c
View file

@ -11,6 +11,7 @@
#include <i2c/i2c.h>
#include <hmc5883l/hmc5883l.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -19,20 +20,24 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
i2c_dev_t dev = {
.addr = HMC5883L_ADDR,
.bus = I2C_BUS,
};
while (!hmc5883l_init())
while (!hmc5883l_init(&dev))
printf("Device not found\n");
hmc5883l_set_operating_mode(HMC5883L_MODE_CONTINUOUS);
hmc5883l_set_samples_averaged(HMC5883L_SAMPLES_8);
hmc5883l_set_data_rate(HMC5883L_DATA_RATE_07_50);
hmc5883l_set_gain(HMC5883L_GAIN_1090);
hmc5883l_set_operating_mode(&dev, HMC5883L_MODE_CONTINUOUS);
hmc5883l_set_samples_averaged(&dev, HMC5883L_SAMPLES_8);
hmc5883l_set_data_rate(&dev, HMC5883L_DATA_RATE_07_50);
hmc5883l_set_gain(&dev, HMC5883L_GAIN_1090);
while (true)
{
hmc5883l_data_t data;
hmc5883l_get_data(&data);
hmc5883l_get_data(&dev, &data);
printf("Magnetic data: X:%.2f mG, Y:%.2f mG, Z:%.2f mG\n", data.x, data.y, data.z);
for (uint32_t i = 0; i < 1000; i++)

6
examples/i2c_lcd_test/main.c
View file

@ -13,6 +13,7 @@
#include <hd44780/hd44780.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
#define ADDR 0x27
@ -27,10 +28,11 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
hd44780_t lcd = {
.addr = ADDR,
.i2c_dev.bus = I2C_BUS,
.i2c_dev.addr = ADDR,
.font = HD44780_FONT_5X8,
.lines = 2,
.pins = {

6
examples/ina3221_test/main.c
View file

@ -13,6 +13,7 @@
#include <stdbool.h>
#include "ina3221/ina3221.h"
#define I2C_BUS 0
#define PIN_SCL 5
#define PIN_SDA 2
#define ADDR INA3221_ADDR_0
@ -33,7 +34,8 @@ void ina_measure(void *pvParameters)
// Create ina3221 device
ina3221_t dev = {
.addr = ADDR,
.i2c_dev.bus = I2C_BUS,
.i2c_dev.addr = ADDR,
.shunt = { 100 ,100 ,100 }, // shunt values are 100 mOhm for each channel
.mask.mask_register = INA3221_DEFAULT_MASK, // Init
.config.config_register = INA3221_DEFAULT_CONFIG, // Init
@ -120,7 +122,7 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(PIN_SCL,PIN_SDA);
i2c_init(I2C_BUS, PIN_SCL, PIN_SDA, I2C_FREQ_400K);
xTaskCreate(ina_measure, "Measurements_task", 512, NULL, 2, NULL);
}

25
examples/mcp4725_test/main.c
View file

@ -14,14 +14,15 @@
#include <FreeRTOS.h>
#include <task.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
#define ADDR MCP4725A0_ADDR0
#define VDD 3.3
inline static void wait_for_eeprom()
inline static void wait_for_eeprom(i2c_dev_t* dev)
{
while (mcp4725_eeprom_busy(ADDR))
while (mcp4725_eeprom_busy(dev))
{
printf("...DAC is busy, waiting...\n");
vTaskDelay(1);
@ -33,21 +34,25 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
// setup EEPROM values
if (mcp4725_get_power_mode(ADDR, true) != MCP4725_PM_NORMAL)
if (mcp4725_get_power_mode(&dev, true) != MCP4725_PM_NORMAL)
{
printf("DAC was sleeping... Wake up Neo!\n");
mcp4725_set_power_mode(ADDR, MCP4725_PM_NORMAL, true);
wait_for_eeprom();
mcp4725_set_power_mode(&dev, MCP4725_PM_NORMAL, true);
wait_for_eeprom(&dev);
}
printf("Set default DAC ouptut value to MAX...\n");
mcp4725_set_raw_output(ADDR, MCP4725_MAX_VALUE, true);
wait_for_eeprom();
mcp4725_set_raw_output(&dev, MCP4725_MAX_VALUE, true);
wait_for_eeprom(&dev);
printf("And now default DAC output value is 0x%03x\n", mcp4725_get_raw_output(ADDR, true));
printf("And now default DAC output value is 0x%03x\n", mcp4725_get_raw_output(&dev, true));
printf("Now let's generate the sawtooth wave in slow manner\n");
@ -58,7 +63,7 @@ void user_init(void)
if (vout > VDD) vout = 0;
printf("Vout: %.02f\n", vout);
mcp4725_set_voltage(ADDR, VDD, vout, false);
mcp4725_set_voltage(&dev, VDD, vout, false);
// It will be very low freq wave
vTaskDelay(100 / portTICK_PERIOD_MS);

6
examples/ms561101ba03/main.c
View file

@ -13,18 +13,20 @@
#include <i2c/i2c.h>
#include <ms561101ba03/ms561101ba03.h>
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
void user_init(void)
{
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
uart_set_baud(0, 115200);
printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
ms561101ba03_t device = {
.addr = MS561101BA03_ADDR_CSB_LOW,
.i2c_dev.bus = I2C_BUS,
.i2c_dev.addr = MS561101BA03_ADDR_CSB_LOW,
.osr = MS561101BA03_OSR_4096,
};

19
examples/pca9685_pwm/main.c
View file

@ -11,8 +11,9 @@
#include <pca9685/pca9685.h>
#include <stdio.h>
#define ADDR 0x40
#define ADDR PCA9685_ADDR_BASE
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
@ -23,19 +24,23 @@ void user_init(void)
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
pca9685_init(ADDR);
pca9685_init(&dev);
pca9685_set_pwm_frequency(ADDR, 1000);
printf("Freq 1000Hz, real %d\n", pca9685_get_pwm_frequency(ADDR));
pca9685_set_pwm_frequency(&dev, 1000);
printf("Freq 1000Hz, real %d\n", pca9685_get_pwm_frequency(&dev));
uint16_t val = 0;
while (true)
{
printf("Set ch0 to %d, ch4 to %d\n", val, 4096 - val);
pca9685_set_pwm_value(ADDR, 0, val);
pca9685_set_pwm_value(ADDR, 4, 4096 - val);
pca9685_set_pwm_value(&dev, 0, val);
pca9685_set_pwm_value(&dev, 4, 4096 - val);
if (val++ == 4096)
val = 0;

10
examples/pcf8591/main.c
View file

@ -9,15 +9,21 @@
#include "i2c/i2c.h"
#include "pcf8591/pcf8591.h"
#define ADDR PCF8591_DEFAULT_ADDRESS
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
static void measure(void *pvParameters)
{
i2c_dev_t dev = {
.addr = ADDR,
.bus = I2C_BUS,
};
while (1)
{
vTaskDelay(1000 / portTICK_PERIOD_MS);
printf("Value: %d\n", pcf8591_read(PCF8591_DEFAULT_ADDRESS, 0x03));
printf("Value: %d\n", pcf8591_read(&dev, 0x03));
}
}
@ -30,7 +36,7 @@ void user_init(void)
printf("SDK version : %s\n", sdk_system_get_sdk_version());
printf("GIT version : %s\n", GITSHORTREV);
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
xTaskCreate(measure, "measure_task", 256, NULL, 2, NULL);
}

6
examples/ssd1306_example/main.c
View file

@ -23,6 +23,7 @@
#ifdef I2C_CONNECTION
#define PROTOCOL SSD1306_PROTO_I2C
#define ADDR SSD1306_I2C_ADDR_0
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
#else
@ -35,7 +36,8 @@
static const ssd1306_t dev = {
.protocol = PROTOCOL,
#ifdef I2C_CONNECTION
.addr = ADDR,
.i2c_dev.bus = I2C_BUS,
.i2c_dev.addr = ADDR,
#else
.cs_pin = CS_PIN,
.dc_pin = DC_PIN,
@ -97,7 +99,7 @@ void user_init(void)
printf("SDK version:%s\n", sdk_system_get_sdk_version());
#ifdef I2C_CONNECTION
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_400K);
#endif
while (ssd1306_init(&dev) != 0)

6
examples/ssd1306_fps/main.c
View file

@ -29,6 +29,7 @@
#ifdef I2C_CONNECTION
#define PROTOCOL SSD1306_PROTO_I2C
#define ADDR SSD1306_I2C_ADDR_0
#define I2C_BUS 0
#define SCL_PIN 5
#define SDA_PIN 4
#else
@ -43,7 +44,8 @@
static const ssd1306_t dev = {
.protocol = PROTOCOL,
#ifdef I2C_CONNECTION
.addr = ADDR,
.i2c_dev.bus = I2C_BUS,
.i2c_dev.addr = ADDR,
#else
.cs_pin = CS_PIN,
.dc_pin = DC_PIN,
@ -162,7 +164,7 @@ void user_init(void)
printf("SDK version:%s\n", sdk_system_get_sdk_version());
#ifdef I2C_CONNECTION
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_400K);
#endif
while (ssd1306_init(&dev) != 0) {

6
examples/tsl2561/tsl2561_example.c
View file

@ -16,6 +16,7 @@
* Connect 3.3v from the ESP to Vin and GND to GND
*/
#define I2C_BUS (0)
#define SCL_PIN (2)
#define SDA_PIN (0)
@ -27,7 +28,8 @@ void tsl2561MeasurementTask(void *pvParameters)
// TSL2561_I2C_ADDR_VCC (0x49)
// TSL2561_I2C_ADDR_GND (0x29)
// TSL2561_I2C_ADDR_FLOAT (0x39) Default
lightSensor.i2c_addr = TSL2561_I2C_ADDR_FLOAT;
lightSensor.i2c_dev.bus = I2C_BUS;
lightSensor.i2c_dev.addr = TSL2561_I2C_ADDR_FLOAT;
tsl2561_init(&lightSensor);
@ -63,7 +65,7 @@ void tsl2561MeasurementTask(void *pvParameters)
void user_init(void)
{
uart_set_baud(0, 115200);
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
xTaskCreate(tsl2561MeasurementTask, "tsl2561MeasurementTask", 256, NULL, 2, NULL);
}

6
examples/tsl4531/tsl4531_example.c
View file

@ -16,13 +16,15 @@
* Connect 3.3v from the ESP to Vin and GND to GND
*/
#define I2C_BUS (0)
#define SCL_PIN (2)
#define SDA_PIN (0)
void tsl4531MeasurementTask(void *pvParameters)
{
tsl4531_t lightSensor;
lightSensor.i2c_addr = TSL4531_I2C_ADDR;
lightSensor.i2c_dev.bus= I2C_BUS;
lightSensor.i2c_dev.addr= TSL4531_I2C_ADDR;
tsl4531_init(&lightSensor);
tsl4531_set_integration_time(&lightSensor, TSL4531_INTEGRATION_400MS);
@ -49,7 +51,7 @@ void tsl4531MeasurementTask(void *pvParameters)
void user_init(void)
{
uart_set_baud(0, 115200);
i2c_init(SCL_PIN, SDA_PIN);
i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_100K);
xTaskCreate(tsl4531MeasurementTask, "tsl4531MeasurementTask", 256, NULL, 2, NULL);
}