Z3JPZUTz

ls_pi elf (learning board)

Overview

硬件原理
一、这次硬件设计有
1、ds1302时钟设计
2、DHT12湿度传感器
3、DA播放音乐（程序正在设计）
4、esp01s
5、2个led彩灯
二、支持展板的程序（点击跳转相应代码）
1、点灯控制
2、lcd屏幕（参考官方啊）
3、key按键
4、esp(请先用AT指令设置ap)串口打印
因为要用到2个串口（USART0、USART1），这时候就与要独立的串口打印“usartPrintf”（不能同时重定义到printf）、在配合cjson非常丝滑，
5、dht11程序
6、ds1302程序
7、delay函数实现
请期待
>>>>>>>>>>>>>
x、u8g2
x、什么时候想好就来（狗头保命）
三、Cjson库的使用
cjson的使用到官网去下载cjson,或者移步下方
示例

#include "gd32f4xx.h"#include #include "led.h"#include "usart.h"#include "string.h"#include "stdlib.h"#include "dht11.h"#include "delay.h"#include "cJSON.h"

void parse_led(const char *JSON){ cJSON *json,*led0 , *led1; printf("data before:%s
",JSON); json = cJSON_Parse(JSON);//解析串口的JSON数据 if(json==NULL) { printf("json_erro:[%s]
",cJSON_GetErrorPtr());//输出语法错误的位置 } else { led0 = cJSON_GetObjectItem(json,"led1"); led1 = cJSON_GetObjectItem(json,"led2"); printf("led1=%d
",led0->valueint); printf("led2=%d
",led1->valueint); if(led0->valueint==1 ){led1_on();}else{led1_off();}     if(led1->valueint==1 ){led2_on();}else{led2_off();} //memset(g_recv_buff, 0, g_recv_length); // 清空数组 } cJSON_Delete(json); // 释放内存   }

int main(void){     nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2); // 优先级分组 LED_GPIO_Init(); Usart_gpio_Init(115200); DHT11_Init();   printf("Interrupt receive
"); while (1) {     if(g_recv_complete_flag==1) { delay_ms(10); parse_led ((const char *)g_recv_buff ); g_recv_complete_flag=0; } }}

后续有时间在肝

工程文件放在下面本人学生一枚，诸君共勉！同时感谢JLC的技术支持人员*v*！

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-20 15:18:36

Please share your experience with e-book readers
Have you ever used an e-book reader? How was the reading experience? What was the screen resolution?
Please recommend a book on developing STM8 using IAR as the development environment
Please recommend a book on developing STM8 using IAR as the development environment, thank you
Let’s discuss 5G millimeter wave technology and base station solutions.
Recently, Qorvo talked about 5G millimeter wave technology and base station solutions , and introduced that in the 5G era, another obvious change is the increase in bandwidth. The improvement of the e
Share the 4 books I bought with E-coins
[i=s]This post was last edited by zhaojun_xf on 2015-2-5 17:25[/i] I placed the order yesterday and it arrived today, so fast… Thanks to EE, thanks to CCTV… [align=center][/align] [align=center][/alig
Please ask an expert for help!!!!!!!!!!!!!!!!!!!!!
I want to self-destruct all programs on the linear flash chip SST39VF320. Please tell me how to do it!!!
I received the gift, thanks to the forum, but it is indeed broken
Thank you very much for the forum's activities. TTI, I won a Xiaomi bracelet. After I received it and charged it, the light didn't light up. Are all the winners defective products? Please ask the admi

Datasheet More

Circuits More