本期为各种智能小车参考资料，多数为参赛作品，均包含原理图、代码、手册等资料。同时，电子发烧友与Altium联合举办Altium实训班——声源跟踪小车设计挑战赛，欢迎各位发烧友参赛，赢取丰厚礼品报名
2022-09-22 14:41
费波那契数列。（义大利语：Successione二斐波那契），又译费波拿契数，斐波那契数列，费氏数列，黄金分割数列在数学上，费波那契数列是以递归的方法来定义：（N≧2）
2014-07-18 06:12
【RA4M2设计挑战赛】1、环境搭建概述本来选择的方式是keil+瑞萨配置工具方式来搭建环境，奈何安装瑞萨配置工具之后发现经常卡死，于是，就直接用瑞萨提供的IDE来进行开发，以下是环境搭建的全过程1
2023-02-26 21:47
`海渡学院虚拟仿真排位赛3月开赛，火热报名中，每月现金大奖等你拿！工业机器人爱好者均可报名参赛！进入海渡学院APP报名挑战
2018-02-28 14:15
***************************************************************************************************话说2015即将过去，想在年末举行一个LabVIEW的黑白棋挑战赛。本期活动分为两期
2015-11-22 19:27
项目简介本项目是基于RA4M2完成了环境网关设备，传感器HS3003采集温湿度，温湿度通过wifi模块周期性上传到TCP服务器平台；调试环境windows10；MDK5；RASC4.0.0；DAP调试器；软件实现逻辑上电之后，做系统初始化，初始化完成之后WIFI自动连接TCP服务端，并将温湿度信息发送给TCP服务端。实现环境网关。hs3003.c#include "hs3003.h"#include "stdio.h"/* Sequence */typedef enum e_demo_sequence{ DEMO_SEQUENCE_1 = (1), DEMO_SEQUENCE_2, DEMO_SEQUENCE_3, DEMO_SEQUENCE_4, DEMO_SEQUENCE_5, DEMO_SEQUENCE_6,} demo_sequence_t;/* Callback status */typedef enum e_hs3003_callback_status{ HS3003_CALLBACK_STATUS_WAIT = (0), HS3003_CALLBACK_STATUS_SUCCESS, HS3003_CALLBACK_STATUS_REPEAT,} hs3003_callback_status_t;#define SENSOR_TEMP_RANGE_MAX (80)#define SENSOR_TEMP_RANGE_MIN (-10)#define SENSOR_HUMI_RANGE_MAX (100)#define SENSOR_HUMI_RANGE_MIN (0)/* Definitions of Mask Data for A/D data */#define RM_HS300X_MASK_HUMIDITY_UPPER_0X3F (0x3F)#define RM_HS300X_MASK_TEMPERATURE_LOWER_0XFC (0xFC)#define RM_HS300X_MASK_STATUS_0XC0(0xC0)/* Definitions for Status Bits of A/D Data */#define RM_HS300X_DATA_STATUS_VALID(0x00) // Status-bit: Valid data/* Definitions for Calculation */#define RM_HS300X_CALC_STATIC_VALUE(16383.0F)#define RM_HS300X_CALC_HUMD_VALUE_100(100.0F)#define RM_HS300X_CALC_TEMP_C_VALUE_165 (165.0F)#define RM_HS300X_CALC_TEMP_C_VALUE_40(40.0F)#define RM_HS300X_CALC_DECIMAL_VALUE_100(100.0F)/* See Developer Assistance in the project */void g_comms_i2c_bus0_quick_setup(void);void g_hs300x_sensor0_quick_setup(void);void start_demo(void);static void demo_err(void);static volatile hs3003_callback_status_ths3003_callback_status;void g_comms_i2c_bus0_quick_setup(void){ fsp_err_t err; err = R_SCI_I2C_Open(&hs3003_i2c_ctrl, &hs3003_i2c_cfg); assert(FSP_SUCCESS == err);}void hs3003_i2c_callback(i2c_master_callback_args_t * p_args){if (HS3003_CALLBACK_STATUS_SUCCESS == p_args->event) {hs3003_callback_status = HS3003_CALLBACK_STATUS_SUCCESS; } else {hs3003_callback_status = HS3003_CALLBACK_STATUS_REPEAT; }}void start_hs3003(void){fsp_err_t err;uint8_t r_buf[4] = {0};uint16_t humi, temp;float tmp_f = 0.0;uint8_t data[2] = {0x00,0x00};demo_sequence_t sequence = DEMO_SEQUENCE_1;g_comms_i2c_bus0_quick_setup();while(1){err = R_SCI_I2C_Write(&hs3003_i2c_ctrl,data,1,0);R_BSP_SoftwareDelay(40000,BSP_DELAY_UNITS_MICROSECONDS);err = R_SCI_I2C_Read(&hs3003_i2c_ctrl,&r_buf,4,1);if(err == FSP_SUCCESS){//printf("0x%X,0x%X,0x%X,0x%X\\n", r_buf[0], r_buf[1], r_buf[2], r_buf[3]);//printf("state:%x\\n", r_buf[0] & RM_HS300X_MASK_STATUS_0XC0);if ((r_buf[0] & RM_HS300X_MASK_STATUS_0XC0) != RM_HS300X_DATA_STATUS_VALID){printf("转换时间不哆");}humi = (r_buf[0] & RM_HS300X_MASK_HUMIDITY_UPPER_0X3F) << 8 | r_buf[1];temp = (r_buf[2] << 8 | (r_buf[3] & RM_HS300X_MASK_TEMPERATURE_LOWER_0XFC)) >> 2;tmp_f = (float)humi;tmp_f = (tmp_f * RM_HS300X_CALC_HUMD_VALUE_100) / RM_HS300X_CALC_STATIC_VALUE;printf("湿度: %.2f\\n",tmp_f );tmp_f = (float)temp;tmp_f = ((tmp_f * RM_HS300X_CALC_TEMP_C_VALUE_165) / RM_HS300X_CALC_STATIC_VALUE) - RM_HS300X_CALC_TEMP_C_VALUE_40;printf("温度: %.2f\\n", tmp_f); } else {printf("读取传感器出错!\\n"); }R_BSP_SoftwareDelay(1000000,BSP_DELAY_UNITS_MICROSECONDS);}}hs3003.h#ifndef __HS3003_H#define __HS3003_H#include "hal_data.h"#define HS300X_ADR0x44// look at datasheet#define HS300X_TEMP_MULTY0.010071415 // look at datasheet#define HS300X_TEMP_MIN 40 // look at datasheet#define HS300X_HUMD_MULTY0.006163516 // look at datasheet#define HS300X_MAX_ITERATION100#define HS300X_DELAY_MEASUREMENT 35 // typical on datasheet 16.90 ms, rounded up a little (35ms = 1 try)#define HS300X_DELAY_ITERATION1#define HS300X_STALE_DATA2#define HS300X_OK 1#define HS300X_ERROR_SENSOR_BUSY 0#define HS300X_ERROR_COLLISION_I2C-1void start_hs3003(void);#endifuart.c#include "uart.h"void bsp_uart_init(void){fsp_err_t err = FSP_SUCCESS;err = R_SCI_UART_Open (&esp8266_uart_ctrl, &esp8266_uart_cfg);assert(FSP_SUCCESS == err);}volatile bool uart_send_complete_flag = false;/void esp8266_uart_callback (uart_callback_args_t * p_args){switch (p_args->event){case UART_EVENT_RX_CHAR:{R_SCI_UART_Write(&esp8266_uart_ctrl, (uint8_t *)&(p_args->data), 1);break;}case UART_EVENT_TX_COMPLETE:{uart_send_complete_flag = true;break;}default:break;}}/* 重定向 printf 输出 */#if defined __GNUC__ && !defined __clang__int _write(int fd, char *pBuffer, int size); //防止编译警告int _write(int fd, char *pBuffer, int size){(void)fd;R_SCI_UART_Write(&g_uart0_ctrl, (uint8_t *)pBuffer, (uint32_t)size);while(uart_send_complete_flag == false);uart_send_complete_flag = false;return size;}#elseint fputc(int ch, FILE *f){(void)f;R_SCI_UART_Write(&esp8266_uart_ctrl, (uint8_t *)&ch, 1);while(uart_send_complete_flag == false);uart_send_complete_flag = false;return ch;}#endifuart.h#ifndef __BSP_UART_H__#define __BSP_UART_H__#include "hal_data.h"#include "stdio.h"void bsp_uart_init(void);#endif
2023-03-04 23:58
本次瑞萨提供了一块主板，三块附加功能板。资料：https://bbs.elecfans.com/jishu_2329264_1_1.html感到抱歉，我准备复试，，慢慢补。
2023-03-05 20:55
第二关的2010版本
2015-08-23 10:32
【RA4M2设计挑战赛】2、H3003温湿度传感器使用H3003简介HS3003是一个高度精确、完全校准的相对湿度和温度传感器。MEMS传感器具有专有的传感器级保护功能，确保了高可靠性和长期稳定性
2023-02-26 22:29
LabVIEW人脸识别设计“3天挑战赛”，挑战成功！全额退款！报名链接：http://t.elecfans.com/topic/67.html?elecfans_trackid=whm01次闹钟自动获取系统时间[hi
2012-02-23 11:14
