56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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/*
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* This sample code is in the public domain.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "esp/uart.h"
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#include "FreeRTOS.h"
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#include "i2c/i2c.h"
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#include "task.h"
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#include "tsl4531/tsl4531.h"
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/* An example using the TSL4531 light sensor
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* to read and print lux values from a sensor
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* attached to GPIO pin 2 (SCL) and GPIO pin 0 (SDA)
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* Connect 3.3v from the ESP to Vin and GND to GND
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*/
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#define SCL_PIN (2)
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#define SDA_PIN (0)
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void tsl4531MeasurementTask(void *pvParameters)
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{
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tsl4531_t lightSensor;
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lightSensor.i2c_addr = TSL4531_I2C_ADDR;
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tsl4531_init(&lightSensor);
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tsl4531_set_integration_time(&lightSensor, TSL4531_INTEGRATION_400MS);
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tsl4531_set_power_save_skip(&lightSensor, true);
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uint16_t lux = 0;
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while (1)
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{
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if (tsl4531_read_lux(&lightSensor, &lux))
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{
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printf("Lux: %u\n", lux);
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}
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else
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{
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printf("Could not read data from TSL4531\n");
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}
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// 0.05 second delay
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vTaskDelay(50 / portTICK_PERIOD_MS);
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}
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}
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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i2c_init(SCL_PIN, SDA_PIN);
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xTaskCreate(tsl4531MeasurementTask, "tsl4531MeasurementTask", 256, NULL, 2, NULL);
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}
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