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                * 導師視頻講解:[去聽課](https://www.bilibili.com/video/BV1Cb4y1171H?p=8) >[success] **技術支持說明** > 1.**客服**提供簡單的技術支持,一般自主學習為主 > 2.可到官方問答社區中提問:[**去提問**](https://bbs.csdn.net/forums/nb-iot) > 3.工程師**會盡快**解答社區問題,但他們是一線開發,【**難以保證**】解答時效,解答辛苦,感謝理解! <br/> ## **硬件準備** * 把撥碼開關的第3和4位分別打到UTX和URX端,然后插入配套的NB-IoT卡,如圖所示。 ![](https://img.kancloud.cn/f2/93/f29311a2564ef5352f62c2a570508295_1671x1884.png =250x) 注意,NB-IoT卡的缺口要朝外,如圖所示。 ![](https://img.kancloud.cn/e2/d9/e2d9c3f34a6a15055f81fb75741a6849_990x982.png =150x) ### * 用配套的Micro USB線把開發板與電腦連接。 <br/> ## **登錄遠程服務器** 依照前述方法使用PuTTY登錄到遠程服務器,并且輸入如下命令運行 udpserver服務。 ``` ./udpserver ``` 如圖所示。 ![](https://img.kancloud.cn/b9/85/b98513f6275fe0f9cc0413b3d29f44f7_825x522.png =500x) <br/> ## **AT 指令說明** | AT 指令 | 描述 | 數據格式 | 參數說明 | | --- | --- | --- | --- | | AT | 測試模塊是否正常 | AT | 無 | | AT+QSCLK| 配置模塊休眠模式 | AT+QSCLK=n |0: 禁用休眠 <br/> 1: 使能休眠,并通過PSM\_EINT下降沿喚醒深度休眠 <br/> 2: 僅使能輕休眠 | | AT+QIOPEN| 創建連接 | AT+QIOPEN=0,0,"**UDP**","host",port |服務器地址及端口 | | AT+QISEND| 發送數據 | AT+QISEND=0,n |數據長度 | | AT+QICLOSE| 關閉連接 | AT+QICLOSE=0 |無 | <br/> ## **AT 指令測試** * 模塊測試:AT ![](https://img.kancloud.cn/d1/8f/d18f2d122a290b35f41a0decd9af854b_1281x953.png =500x) * 禁用休眠:AT+QSCLK=0 ![](https://img.kancloud.cn/f8/04/f8042517d9dc241c566b3e5614bd3c29_1278x951.png =500x) * 創建UDP鏈接:AT+QIOPEN=0,0,"UDP","1.15.27.206",12301 ![](https://img.kancloud.cn/4d/f2/4df24a064e6e6aa699fce9588cf24f04_1280x960.png =500x) * 發送數據長度:AT+QISEND=0,13 ![](https://img.kancloud.cn/0d/c5/0dc5022e20d4716db40da3b70975f752_1281x960.png =500x) * 發送數據(注意不能有回車換行符):{"value":123} ![](https://img.kancloud.cn/50/d1/50d10eee4c5fef71594cab8390186382_1280x956.png =500x) * 遠程服務器顯示接收到的數據 ![](https://img.kancloud.cn/40/26/402665cd08da391a1d3861f7aceec984_825x522.png =500x) * 關閉連接:AT+QICLOSE=0 ![](https://img.kancloud.cn/8c/23/8c23a5c231986766415afab6fac95c5b_1283x960.png =500x) * 退出服務器程序:ctrl+c ![](https://img.kancloud.cn/b7/f0/b7f0e1f320601484ece03d7f4c2410f9_828x521.png =500x) <br/> <br/> ## **商務合作** 如有以下需求,可掃碼添加管理員好友,注明“**商務合作**” * 項目定制開發,技術范圍:**NB-IoT**、**CATn(4G)**、**WiFi**、**ZigBee**、**BLE Mesh**以及**STM32**、**嵌入式Linux**等; * 入駐平臺,成為講師; * 接項目賺外快; * 善學坊官網:[www.sxf-iot.com](https://www.sxf-iot.com/) ![](https://img.kancloud.cn/ca/73/ca739f92cab220a3059378642e3bd502_430x430.png =150x) (非商務合作**勿擾**,此處**非**技術支持)
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