/* * The MIT License (MIT) * * Author: Assam Boudjelthia * Copyright (c) 2018 Rohm Semiconductor. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ #include #include #include "bh1749.h" #include "upm_utilities.h" bool isStopped; #define SENSOR_ADDR 0x39 #define I2C_BUS 0 void signal_int_handler(int signo) { if (signo == SIGINT) isStopped = true; } void print_data(void *dev) { uint16_t result[5]; bh1749_get_measurements((bh1749_context)dev, result); printf("R: %d, G: %d, B: %d, IR: %d, G2: %d\n", result[0], result[1], result[2], result[3], result[4]); bh1749_reset_interrupt(dev); } int main(int argc, char **argv) { signal(SIGINT, signal_int_handler); bh1749_context dev = bh1749_init(I2C_BUS, SENSOR_ADDR); if (!dev) { printf("bh1749_init() failed.\n"); return -1; } bh1749_soft_reset(dev); bh1749_sensor_init(dev, INT_JUDGE_1, MEAS_240MS, RGB_GAIN_1X, IR_GAIN_1X, RED); bh1749_set_threshold_high(dev, 511); bh1749_enable_interrupt(dev); printf("Installing ISR\n"); bh1749_install_isr(dev, MRAA_GPIO_EDGE_FALLING, 33, &print_data, (void *)dev); bh1749_enable(dev); while(!isStopped) { upm_delay_ms(1000); } bh1749_close(dev); return 0; }