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What is the cheap USB-Serial chip you mentioned previously to me?
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hao jiang  
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 More options Aug 28 2012, 10:33 pm
From: hao jiang <edwar...@gmail.com>
Date: Wed, 29 Aug 2012 10:33:05 +0800
Local: Tues, Aug 28 2012 10:33 pm
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

我们在设计下一代Swarmrobot的PCB, 计划想把它弄成Arduino 兼容.
基本上就是一个带有电机驱动的小型Arduino板。目前是打算用PL2303,国产的价格也很便宜,驱动方面也比CH340好一点。的确看到让很多人抱怨找不 到驱动,可能也会固化ADXL345。电机驱动目前打算用LB1836M,便宜得很。也可以换成DRV8833。基本所有元件都是贴片。还打算把板子直接做成带 金手指的,可以直插USB。

此外另外一个挑战就是群体编程,因为如果我们想做Swarmrobot,一个一个下载程序不现实。目前我的想法是Serial over IR,
直接用一个455kHz的红外接收调制过的串口信号,但是貌似红外不能做全双工,你有么有什么经验?

EdwardRF

2012/8/29 HE Qichen <heqic...@yahoo.com.cn>


 
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Zano  
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 More options Aug 28 2012, 11:46 pm
From: Zano <zano.z...@gmail.com>
Date: Wed, 29 Aug 2012 11:46:14 +0800
Local: Tues, Aug 28 2012 11:46 pm
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?
About IR, it is half-duplex commnuication, but it is not a problem when you make a useful protocol.
have a look on the ethernet protocol, the ethernet also support half-duplex, and it have broadcast function.(i means ethernet, not TCP/IP ;-)  )

On Wed, 29 Aug 2012 10:33:05 +0800

--
Zano.zhao <Zano.z...@gmail.com>

 
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hao jiang  
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 More options Aug 28 2012, 11:57 pm
From: hao jiang <edwar...@gmail.com>
Date: Wed, 29 Aug 2012 11:57:31 +0800
Local: Tues, Aug 28 2012 11:57 pm
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

那个应该是IrDA,估计距离上有问题,但是可以细研究一下。何其辰的意思是说,找一块自带USB控制器的atmel
芯片来做(所有型号结尾为字母U的芯片都带USB控制器,型号不包括包装的字母,比如所Atmega328p-20PU
算是以P结尾的,20PU是包装型号,不算)但是这样的话就要自己写BootLoader, 略有难度,估计PL2303还是目前的算择。

+CC xinchejian@googlegroups.com

2012/8/29 sun sunny <sunnylyvo...@gmail.com>


 
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Li David  
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 More options Aug 29 2012, 12:21 am
From: Li David <tawe...@gmail.com>
Date: Wed, 29 Aug 2012 12:20:52 +0800
Local: Wed, Aug 29 2012 12:20 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?
这个是广播编码的方式了,这个最好做单向,采用同样的内容重复传送几次。

Sent from my iPhone

On Aug 29, 2012, at 10:33 AM, hao jiang <edwar...@gmail.com> wrote:


 
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hao jiang  
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 More options Aug 29 2012, 12:24 am
From: hao jiang <edwar...@gmail.com>
Date: Wed, 29 Aug 2012 12:24:41 +0800
Local: Wed, Aug 29 2012 12:24 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

广播编码貌似的确是唯一的选择了。但是就需要自己动手写bootloader了,应该很难做到与Arduino兼容。

2012/8/29 Li David <tawe...@gmail.com>


 
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Li David  
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 More options Aug 29 2012, 12:47 am
From: Li David <tawe...@gmail.com>
Date: Wed, 29 Aug 2012 12:47:31 +0800
Local: Wed, Aug 29 2012 12:47 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

Broadrino? ArduCast? ;)

Sent from my iPhone

On Aug 29, 2012, at 12:24 PM, hao jiang <edwar...@gmail.com> wrote:


 
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Ken Boak  
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 More options Aug 29 2012, 5:05 am
From: Ken Boak <ken.b...@gmail.com>
Date: Wed, 29 Aug 2012 10:05:13 +0100
Local: Wed, Aug 29 2012 5:05 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

Edward,

I use the SiLabs CP2102.

There are several suppliers of CP2102 breakout boards in Shenzhen area -
some have same pin-out as FTDI cable.

Cost is around  15 - 20 RMB

Ken


 
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Paul Adams  
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 More options Aug 29 2012, 5:25 am
From: Paul Adams <nihaop...@gmail.com>
Date: Wed, 29 Aug 2012 17:24:59 +0800
Local: Wed, Aug 29 2012 5:24 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

Hey Ken,

How did oggcamp go? you get an interview on linux outlaws - i havn't
listened yet!

On Wed Aug 29 17:05:13 2012, Ken Boak wrote:

  signature.asc
< 1K Download

 
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hao jiang  
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 More options Aug 29 2012, 9:17 am
From: hao jiang <edwar...@gmail.com>
Date: Wed, 29 Aug 2012 21:17:17 +0800
Local: Wed, Aug 29 2012 9:17 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

Hi Ken,

Thanks for the info, we are looking at something like PL2303 which is
having a cost of 1.7rmb / piece according to our supplier on taobao.
15~20 is more than the Atmega we are going to use.

Regards
Edward


 
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HE Qichen  
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 More options Aug 30 2012, 9:31 am
From: HE Qichen <heqic...@yahoo.com.cn>
Date: Thu, 30 Aug 2012 21:31:17 +0800 (CST)
Local: Thurs, Aug 30 2012 9:31 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

340有IR TTL232 232 484等几个版本,应该只是外面接的物理介质的不同而做的,上面的数据还是不变的。

关于红外,一般使用的都是38khz,因为是红外的频率计算出最能节能的一种频率。
如果加到455khz 我不知道效果会怎么样,有人试过吗?

另外,如果是群体一起编程的话,有没有办法通过物理手段而不是电子实现红外的转发?以提高红外的可靠性?类似镜子,光纤之类的?只是突然想到的,没有仔细验证过 可行性。

何琪辰

--- On Wed, 8/29/12, hao jiang <edwar...@gmail.com> wrote:

From: hao jiang <edwar...@gmail.com>
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?
To: "sun sunny" <sunnylyvo...@gmail.com>
Cc: xinchejian@googlegroups.com, "HE Qi Chen" <heqic...@yahoo.com.cn>
Date: Wednesday, August 29, 2012, 11:57 AM

那个应该是IrDA,估计距离上有问题,但是可以细研究一下。何其辰的意思是说,找一块自带USB控制器的atmel 芯片来做(所有型号结尾为字母U的芯片都带USB控制器,型号不包括包装的字母,比如所Atmega328p-20PU 算是以P结尾的,20PU是包装型号,不算)但是这样的话就要自己写BootLoader, 略有难度,估计PL2303还是目前的算择。
+CC xinchejian@googlegroups.com

2012/8/29 sun sunny <sunnylyvo...@gmail.com>

340 的官网上说可以支持ir。。。。

在 2012年8月29日 上午10:50,sun sunny <sunnylyvo...@gmail.com>写道:

现在的pl2303 的驱动只支持到mac 的 10.3 10.7的驱动是没有的。。。。。所以要么开发一个vsub的版本?

在 2012年8月29日 上午10:33,hao jiang <edwar...@gmail.com>写道:

我们在设计下一代Swarmrobot的PCB, 计划想把它弄成Arduino 兼容. 基本上就是一个带有电机驱动的小型Arduino板。目前是打算用PL2303,国产的价格也很便宜,驱动方面也比CH340好一点。的确看到让很多人抱怨找不 到驱动,可能也会固化ADXL345。电机驱动目前打算用LB1836M,便宜得很。也可以换成DRV8833。基本所有元件都是贴片。还打算把板子直接做成带 金手指的,可以直插USB。

此外另外一个挑战就是群体编程,因为如果我们想做Swarmrobot,一个一个下载程序不现实。目前我的想法是Serial over IR, 直接用一个455kHz的红外接收调制过的串口信号,但是貌似红外不能做全双工,你有么有什么经验?
EdwardRF
2012/8/29 HE Qichen <heqic...@yahoo.com.cn>

我用的是CH340T,与之类似的有PL2303,不过340稍微便宜点。

但是关于这个芯片我问过做机器人的人,他们不愿意用340是因为340 和2303虽然便宜,但是在windows上需要安装驱动,而且apple上是没有驱动的。相比之下,更愿意使用FTDI,因为即使是贵一点,至少apple上 面有驱动,windows上面也因为之前大部分都玩过arduino也已经装好驱动,很多情况就是即插即用了。

所以更好地情况就是,用自带usb的avr单片机来做,模拟出一个ACM设备或者HID设备,这样就没有驱动的问题了。

--- On Tue, 8/28/12, Edward Jiang <edwar...@tradesparq.com> wrote:

From: Edward Jiang
 <edwar...@tradesparq.com>
Subject: What is the cheap USB-Serial chip you mentioned previously to me?
To: "HE Qi Chen" <heqic...@yahoo.com.cn>, "Qichen He" <heqic...@xinchejian.com>

Date: Tuesday, August 28, 2012, 8:51 PM

Hi Qichen,
We are trying to design a arduino competable swarm robot pcb, would like to find out the serial - usb chip you told me last time.

RegardsEdward


 
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Nirvana Jay  
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 More options Aug 31 2012, 2:00 pm
From: Nirvana Jay <nirvana...@gmail.com>
Date: Sat, 1 Sep 2012 02:00:30 +0800
Local: Fri, Aug 31 2012 2:00 pm
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

为什么不基于ArduinoLeonardo? 自带usb接口控制并且QFN的atmega16u4 mu很便宜才12块钱

支持做金手指,LeoStick这样很赞 -
http://www.freetronics.com/pages/leostick-getting-started-guide#.UD_l...

另一个是用stm32,自带usb,可以做成基于Maple
<http://leaflabs.com/docs/ide.html>arduino compatible的,并且便宜性能还高非常多

电机驱动确实挺少见价格便宜量又足的,我的目标是5A/~18V/TTL/<1$,可这个DRV8833就要1$

其实1A的H桥ClassD才2rmb,还双声道,H桥这种肌肉男不应该贵

2012/8/29 hao jiang <edwar...@gmail.com>

支持,另外ACM是? 虚拟串口? camera?


 
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hao jiang  
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 More options Sep 3 2012, 2:45 am
From: hao jiang <edwar...@gmail.com>
Date: Mon, 3 Sep 2012 14:45:35 +0800
Local: Mon, Sep 3 2012 2:45 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

Leonardo 真是是个很好的选择.

关于class-d 放大器H桥,我的经验不多,我有两个问题请教:
1.有哪些常用的H桥型号我可以参考一下呢? (1A,3A,10A)
2.这些H桥能够接受488Hz的默认PWM频率么?如果不行,应该调成大概什么工作频率呢?

关于ACM,根据linux内核文档:
The drivers/usb/class/cdc-acm.c drivers works with USB modems and USB ISDN
terminal adapters that conform to the Universal Serial Bus Communication
Device Class Abstract Control Model (USB CDC ACM) specification.

新版的Arduino Uno 在linux 下面就会成为 /dev/ttyACM0 而不再是/dev/ttyUSB0

再次谢谢
Edward

2012/9/1 Nirvana Jay <nirvana...@gmail.com>


 
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hao jiang  
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 More options Sep 3 2012, 2:55 am
From: hao jiang <edwar...@gmail.com>
Date: Mon, 3 Sep 2012 14:55:24 +0800
Local: Mon, Sep 3 2012 2:55 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

琪辰:

CH340红外板怎么用呢?直接把输出接到IR发射管? 还是我们自己调制?

我最近看到了下面两个管子:

vishay TFBS4711, TFDU6103

不知道可不可以直接和 CH340或者arduino 直接交流?

你说的物理手段到时很有意思!这样的话我们可以利用类似P2P的方式来下载新版本软件:

每个机器人有两个金属接触点跟UART 的RX TX
接通,机器人与机器人用38Khz红外发送版本号信息,旧版的自动寻找新版机器人对接,金属触电对接之后,旧版机器人重启,启动Bootloader,从新版机 器人下载新版固件。一个传两个,两个传四个。。。

455Khz的我今晚试试,到时候更新你。

谢!

Edward

2012/8/30 HE Qichen <heqic...@yahoo.com.cn>


 
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HE Qichen  
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 More options Sep 3 2012, 4:58 am
From: HE Qichen <heqic...@yahoo.com.cn>
Date: Mon, 3 Sep 2012 16:58:08 +0800 (CST)
Local: Mon, Sep 3 2012 4:58 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

ch340是usb转到串口的芯片,根据他们的意思是用ch340加上TFBS4711就可以直接用usb来输出红外了。。。
所以这一点来说可能不能满足swarmbot的要求。要么上面加选择器,用单个串口控制usb和红外

何琪辰

--- On Mon, 9/3/12, hao jiang <edwar...@gmail.com> wrote:

From: hao jiang <edwar...@gmail.com>
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?
To: xinchejian@googlegroups.com
Cc: "sun sunny" <sunnylyvo...@gmail.com>
Date: Monday, September 3, 2012, 2:55 PM

琪辰:
CH340红外板怎么用呢?直接把输出接到IR发射管? 还是我们自己调制?
我最近看到了下面两个管子:
vishay TFBS4711, TFDU6103
不知道可不可以直接和 CH340或者arduino 直接交流?

你说的物理手段到时很有意思!这样的话我们可以利用类似P2P的方式来下载新版本软件:
每个机器人有两个金属接触点跟UART 的RX TX 接通,机器人与机器人用38Khz红外发送版本号信息,旧版的自动寻找新版机器人对接,金属触电对接之后,旧版机器人重启,启动Bootloader,从新版机 器人下载新版固件。一个传两个,两个传四个。。。

455Khz的我今晚试试,到时候更新你。
谢!
Edward
2012/8/30 HE Qichen <heqic...@yahoo.com.cn>

340有IR TTL232 232 484等几个版本,应该只是外面接的物理介质的不同而做的,上面的数据还是不变的。

关于红外,一般使用的都是38khz,因为是红外的频率计算出最能节能的一种频率。
如果加到455khz 我不知道效果会怎么样,有人试过吗?

另外,如果是群体一起编程的话,有没有办法通过物理手段而不是电子实现红外的转发?以提高红外的可靠性?类似镜子,光纤之类的?只是突然想到的,没有仔细验证过 可行性。

何琪辰

--- On Wed, 8/29/12, hao jiang <edwar...@gmail.com> wrote:

From: hao jiang <edwar...@gmail.com>
Subject: Re: What is the cheap USB-Serial chip
 you mentioned previously to me?
To: "sun sunny" <sunnylyvo...@gmail.com>
Cc: xinchejian@googlegroups.com, "HE Qi Chen" <heqic...@yahoo.com.cn>

Date: Wednesday, August 29, 2012, 11:57 AM

那个应该是IrDA,估计距离上有问题,但是可以细研究一下。何其辰的意思是说,找一块自带USB控制器的atmel 芯片来做(所有型号结尾为字母U的芯片都带USB控制器,型号不包括包装的字母,比如所Atmega328p-20PU 算是以P结尾的,20PU是包装型号,不算)但是这样的话就要自己写BootLoader, 略有难度,估计PL2303还是目前的算择。

+CC xinchejian@googlegroups.com

2012/8/29 sun sunny <sunnylyvo...@gmail.com>

340 的官网上说可以支持ir。。。。

在 2012年8月29日 上午10:50,sun sunny <sunnylyvo...@gmail.com>写道:

现在的pl2303 的驱动只支持到mac 的 10.3 10.7的驱动是没有的。。。。。所以要么开发一个vsub的版本?

在 2012年8月29日 上午10:33,hao jiang <edwar...@gmail.com>写道:

我们在设计下一代Swarmrobot的PCB, 计划想把它弄成Arduino 兼容. 基本上就是一个带有电机驱动的小型Arduino板。目前是打算用PL2303,国产的价格也很便宜,驱动方面也比CH340好一点。的确看到让很多人抱怨找不 到驱动,可能也会固化ADXL345。电机驱动目前打算用LB1836M,便宜得很。也可以换成DRV8833。基本所有元件都是贴片。还打算把板子直接做成带 金手指的,可以直插USB。

此外另外一个挑战就是群体编程,因为如果我们想做Swarmrobot,一个一个下载程序不现实。目前我的想法是Serial over IR, 直接用一个455kHz的红外接收调制过的串口信号,但是貌似红外不能做全双工,你有么有什么经验?
EdwardRF
2012/8/29 HE Qichen <heqic...@yahoo.com.cn>

我用的是CH340T,与之类似的有PL2303,不过340稍微便宜点。

但是关于这个芯片我问过做机器人的人,他们不愿意用340是因为340 和2303虽然便宜,但是在windows上需要安装驱动,而且apple上是没有驱动的。相比之下,更愿意使用FTDI,因为即使是贵一点,至少apple上 面有驱动,windows上面也因为之前大部分都玩过arduino也已经装好驱动,很多情况就是即插即用了。

所以更好地情况就是,用自带usb的avr单片机来做,模拟出一个ACM设备或者HID设备,这样就没有驱动的问题了。

--- On Tue, 8/28/12, Edward Jiang <edwar...@tradesparq.com> wrote:

From: Edward Jiang
 <edwar...@tradesparq.com>
Subject: What is the cheap USB-Serial chip you mentioned previously to me?
To: "HE Qi Chen" <heqic...@yahoo.com.cn>, "Qichen He" <heqic...@xinchejian.com>

Date: Tuesday, August 28, 2012, 8:51 PM

Hi Qichen,
We are trying to design a arduino competable swarm robot pcb, would like to find out the serial - usb chip you told me last time.

RegardsEdward


 
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HE Qichen  
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 More options Sep 3 2012, 4:58 am
From: HE Qichen <heqic...@yahoo.com.cn>
Date: Mon, 3 Sep 2012 16:58:15 +0800 (CST)
Local: Mon, Sep 3 2012 4:58 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

ch340是usb转到串口的芯片,根据他们的意思是用ch340加上TFBS4711就可以直接用usb来输出红外了。。。
所以这一点来说可能不能满足swarmbot的要求。要么上面加选择器,用单个串口控制usb和红外

何琪辰

--- On Mon, 9/3/12, hao jiang <edwar...@gmail.com> wrote:

From: hao jiang <edwar...@gmail.com>
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?
To: xinchejian@googlegroups.com
Cc: "sun sunny" <sunnylyvo...@gmail.com>
Date: Monday, September 3, 2012, 2:55 PM

琪辰:
CH340红外板怎么用呢?直接把输出接到IR发射管? 还是我们自己调制?
我最近看到了下面两个管子:
vishay TFBS4711, TFDU6103
不知道可不可以直接和 CH340或者arduino 直接交流?

你说的物理手段到时很有意思!这样的话我们可以利用类似P2P的方式来下载新版本软件:
每个机器人有两个金属接触点跟UART 的RX TX 接通,机器人与机器人用38Khz红外发送版本号信息,旧版的自动寻找新版机器人对接,金属触电对接之后,旧版机器人重启,启动Bootloader,从新版机 器人下载新版固件。一个传两个,两个传四个。。。

455Khz的我今晚试试,到时候更新你。
谢!
Edward
2012/8/30 HE Qichen <heqic...@yahoo.com.cn>

340有IR TTL232 232 484等几个版本,应该只是外面接的物理介质的不同而做的,上面的数据还是不变的。

关于红外,一般使用的都是38khz,因为是红外的频率计算出最能节能的一种频率。
如果加到455khz 我不知道效果会怎么样,有人试过吗?

另外,如果是群体一起编程的话,有没有办法通过物理手段而不是电子实现红外的转发?以提高红外的可靠性?类似镜子,光纤之类的?只是突然想到的,没有仔细验证过 可行性。

何琪辰

--- On Wed, 8/29/12, hao jiang <edwar...@gmail.com> wrote:

From: hao jiang <edwar...@gmail.com>
Subject: Re: What is the cheap USB-Serial chip
 you mentioned previously to me?
To: "sun sunny" <sunnylyvo...@gmail.com>
Cc: xinchejian@googlegroups.com, "HE Qi Chen" <heqic...@yahoo.com.cn>

Date: Wednesday, August 29, 2012, 11:57 AM

那个应该是IrDA,估计距离上有问题,但是可以细研究一下。何其辰的意思是说,找一块自带USB控制器的atmel 芯片来做(所有型号结尾为字母U的芯片都带USB控制器,型号不包括包装的字母,比如所Atmega328p-20PU 算是以P结尾的,20PU是包装型号,不算)但是这样的话就要自己写BootLoader, 略有难度,估计PL2303还是目前的算择。

+CC xinchejian@googlegroups.com

2012/8/29 sun sunny <sunnylyvo...@gmail.com>

340 的官网上说可以支持ir。。。。

在 2012年8月29日 上午10:50,sun sunny <sunnylyvo...@gmail.com>写道:

现在的pl2303 的驱动只支持到mac 的 10.3 10.7的驱动是没有的。。。。。所以要么开发一个vsub的版本?

在 2012年8月29日 上午10:33,hao jiang <edwar...@gmail.com>写道:

我们在设计下一代Swarmrobot的PCB, 计划想把它弄成Arduino 兼容. 基本上就是一个带有电机驱动的小型Arduino板。目前是打算用PL2303,国产的价格也很便宜,驱动方面也比CH340好一点。的确看到让很多人抱怨找不 到驱动,可能也会固化ADXL345。电机驱动目前打算用LB1836M,便宜得很。也可以换成DRV8833。基本所有元件都是贴片。还打算把板子直接做成带 金手指的,可以直插USB。

此外另外一个挑战就是群体编程,因为如果我们想做Swarmrobot,一个一个下载程序不现实。目前我的想法是Serial over IR, 直接用一个455kHz的红外接收调制过的串口信号,但是貌似红外不能做全双工,你有么有什么经验?
EdwardRF
2012/8/29 HE Qichen <heqic...@yahoo.com.cn>

我用的是CH340T,与之类似的有PL2303,不过340稍微便宜点。

但是关于这个芯片我问过做机器人的人,他们不愿意用340是因为340 和2303虽然便宜,但是在windows上需要安装驱动,而且apple上是没有驱动的。相比之下,更愿意使用FTDI,因为即使是贵一点,至少apple上 面有驱动,windows上面也因为之前大部分都玩过arduino也已经装好驱动,很多情况就是即插即用了。

所以更好地情况就是,用自带usb的avr单片机来做,模拟出一个ACM设备或者HID设备,这样就没有驱动的问题了。

--- On Tue, 8/28/12, Edward Jiang <edwar...@tradesparq.com> wrote:

From: Edward Jiang
 <edwar...@tradesparq.com>
Subject: What is the cheap USB-Serial chip you mentioned previously to me?
To: "HE Qi Chen" <heqic...@yahoo.com.cn>, "Qichen He" <heqic...@xinchejian.com>

Date: Tuesday, August 28, 2012, 8:51 PM

Hi Qichen,
We are trying to design a arduino competable swarm robot pcb, would like to find out the serial - usb chip you told me last time.

RegardsEdward


 
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Nirvana Jay  
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 More options Sep 7 2012, 8:56 am
From: Nirvana Jay <nirvana...@gmail.com>
Date: Fri, 7 Sep 2012 20:56:17 +0800
Local: Fri, Sep 7 2012 8:56 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

AD1994

488Hz? 这是.. .Arduino的标准PWM? 和国际标准音a 440有什么关系么?

2012/9/3 HE Qichen <heqic...@yahoo.com.cn>


 
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Nirvana Jay  
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 More options Sep 7 2012, 9:13 am
From: Nirvana Jay <nirvana...@gmail.com>
Date: Fri, 7 Sep 2012 21:13:25 +0800
Local: Fri, Sep 7 2012 9:13 am
Subject: Re: What is the cheap USB-Serial chip you mentioned previously to me?

嗯,非常不错,尤其是最近还发现个Leonardo的好处。搞个事情手上要组个传感器网发现干脆usb组网是最好的办法,结果Arduino
Nano换最好的Hub也不能保证一次全部枚举成功,并且挨个不掉电复位好像没有办法,而最一般的Hub也把一大把LeoStick和MakeyMakey枚举 成功

手上打了一堆LeoStick和MakeyMakey还有OpenServo的板子,十月份双年展我会在上海有朋友要可以顺便送几块~
http://www.openservo.com/

在这上面搞个ArduiServo倒是不错,现成的3003这种商品化舵机完全没有反馈能干的事情也太少了

不到1A的市场上有很多PAM8403的型号,还有很多小厂出这种ClassD

比较好的型号有ADI的AD1994系列,还有前TriPath的各种型号,比如我正在听的一只就是他们的2x24W?
TA2024,手上还有两块他们2x100W的板子,和CPU散热器差不多大

具体怎么当电机控制器要研究研究,至少大概要里面振荡器停止工作比较好

2012/9/3 hao jiang <edwar...@gmail.com>


 
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