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Description: 这是一个音量控制IC，采用IIC通信方式，容易控制，价格便宜。-This is a volume control IC, the use of IIC communication, easy to control and cheaper prices.
Platform: |
Size: 492544 |
Author: songlianjie55 |
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Description: 矩阵键盘设计,共十六键,可用于无线遥控设计-Matrix keyboard design, a total of 16 keys can be used for wireless remote control design
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Size: 30720 |
Author: 阳光 |
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Description: 无线呼叫器件(红铃)完整源代码
PT2262 编码芯片的软件解码C源代码
提供使用说明、电路图和主要芯片手册-GSM
Platform: |
Size: 1223680 |
Author: alen |
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Description: pt2258,pt2230,pt2322等常用音效IC的程序例子,很有用处-pt2258, pt2230, pt2322 and other procedures commonly used audio IC examples, very useful ~ ~
Platform: |
Size: 4096 |
Author: 张绍斌 |
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Description: 用单片机做解码,可以支持20个学习码,解码稳定可靠是固定码遥控电路升级.-Done with single-chip codec to support 20 to learn code, decoding is a stable and reliable upgrade fixed code remote control circuit.
Platform: |
Size: 8192 |
Author: 章伟 |
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Description: 2005年电子大赛高频赛题，下位机接收短信，pt2272匹配电阻100k,上位机2262 360k-2005 E-Series high-frequency event title, the next crew to receive text messages, pt2272 matching resistor 100k, host computer 2262 360k
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Size: 45056 |
Author: liyan |
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Description: *** *** *** *** *** ***** 说 明 *** *** *** *** *** *****
接收到的信号为发送信号的反码因为每检测到按键有效一次PT2262 都发送四次编码我们可以
利用这一特点来解码先检测有没有接收到信息当有的时候我们就去掉第一次编码的信号检测5ms 的
高电平来检测编码的开始信号接收到5ms 的高电平后才开始解码我们可以发现每个码的长度都是1.2ms
左右每一个编码都是由低电平开始然后到高电平又到低电平又回到高电平我们从第一个高电平
的宽度可以把1 码区分出来剩下的悬空码和0 码可以从第二个高电平的宽度区分出来
具体的单片机译码方法如下
由高电平开始检测到下降沿时就延时300us 读取接收的状态记为A0 然后再检测下一个下降沿
降沿后又延时300us 读取接收的状态记为A1 这样就把一个编码给译出来了
A0 A1 和悬空1 码0 码的关系如下:
A0 A1 代码
0 0 1 码
0 1 错误
1 0 悬空
1 1 0 码
******************************************************************************/-good thing
Platform: |
Size: 3072 |
Author: yxc |
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Description: C51的PT2272软件解码程序，网上大部分PT2272的解码程序都是全程占用单片机系统资源，造成巨大的资源浪费。本程序利用单片机定时器中断进行解码，基本上不占用单片机系统资源，不影响单片机同时执行其他任务。经过测试，本程序有较高的可靠性。能轻易移植到其它项目上。-The PT2272 C51 software decoding process, most online programs are full decoding PT2272 take SCM system resources, causing a huge waste of resources. The program uses the timer interrupt to decode single chip, basically do not take SCM system resources, does not affect the microcontroller to perform other tasks simultaneously. After testing, the program has high reliability. Easily portable to other projects.
Platform: |
Size: 2048 |
Author: tang |
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