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GSM的网络安全报警
SIM900 GSM模块基于安全警报,有很多定制和模拟和数字I / O的。 PIR传感器探测人体运动检测并立即发送短信。温度传感器监测室温并发送SMS的任何改变比预设水平。
- 2022-02-13 19:27:20下载
- 积分:1
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FreeModbus学习笔记
FreeModbus 学习笔记
一、 FreeModbus 简介
FreeMODBUS 一个奥地利人写的Modbus 协议。它是一个针对嵌入式应用的一个免费
(自由)的通用MODBUS 协议的移植。Modbus 是一个工业制造环境中应用的一个通用协
议。Modbus 通信协议栈包括两层:Modbus 应用层协议,该层定义了数据模式和功能;另
外一层是网络层。
FreeMODBUS 提供了RTU/ASCII 传输模式及TCP 协议支持。FreeModbus 遵循BSD
许可证,这意味着用户可以将FreeModbus 应用于商业环境中。目前版本FreeModbus-V1.5
提供如下的功能支持:
- 2022-05-01 00:39:26下载
- 积分:1
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MQ-9气体传感器报警程序
基于51单片机,结合MQ-9气体传感器,设定一氧化碳气体浓度含量,当测定值大于设定浓度时,采取报警措施。主要用于家庭环境的一氧化碳检查,也可用于煤气和液化气的现场检测等等。
- 2022-08-23 22:36:01下载
- 积分:1
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Samsung 2410 cpu uart 测试源码
Samsung 2410 cpu uart 测试源码-Samsung 2410 cpu uart test source
- 2022-03-01 11:03:40下载
- 积分:1
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PIC与18B20示例程序,参考学习,请站长审阅,
PIC与18B20示例程序,参考学习,请站长审阅,-Examples of PIC with the 18B20 procedure, reference study, please head examined,
- 2023-07-13 23:15:03下载
- 积分:1
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单片机做的以个简易音乐播放器,可以播放三首歌曲,源程序及硬件均通过仿真调试...
单片机做的以个简易音乐播放器,可以播放三首歌曲,源程序及硬件均通过仿真调试-Single-chip in order to do a simple music player, can play three songs, the source code and hardware debugging through simulation
- 2022-11-01 12:00:03下载
- 积分:1
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Test Timer_A PWM Functions
Test Timer_A PWM Functions
- 2023-05-20 12:55:03下载
- 积分:1
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CML公司的DE9901开发板
应用背景The CMX990 provides, on-chip: a flexible, formattable GMSK packet and freeformat modem, a dual synthesiser fed from an external source, IF and RF transceiver stages for both Rx and Tx modes, and auxiliary ADCs and DACs for system control and monitoring.关键技术Operating in the range of 400MHz to 1GHz at data rates of 4 to 16 kbps.
This single-chip, half-duplex device requires a minimum of external components, keeping end-product board size, power consumption and cost to an absolute minimum.
The versatile GMSK modem is configured for either packet and freeformat data operation via an efficient task-oriented Rx and Tx format and command structure combined with data scrambling, interleaving and FEC and CRC capabilities.
Rx data acquisition, extraction and tracking functions use Rx data-quality feedback to support varying signal environments. IF and RF functions in the Tx path handle all the signal processing requi
- 2022-02-04 17:09:35下载
- 积分:1
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嵌入式http源代码的文档资料
嵌入式http源代码的文档资料-Embedded http source code documentation
- 2022-03-19 16:29:01下载
- 积分:1
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2.4 kernel arm2410 the dm9000 driver code, refer to the experimental box innovat...
2.4内核的arm2410的dm9000驱动代码,参考革新2410实验箱上的代码改写的!-2.4 kernel arm2410 the dm9000 driver code, refer to the experimental box innovation 2410 rewrite of the code!
- 2022-02-06 03:42:29下载
- 积分:1