[ale] OT: Arduino

[Charles Shapiro]

Pressing the reset button on the Uno is not that hard.  I've been using a
bog-standard USB->micro-usb cable with success.  Occasionally I'll have
trouble if I overload the serial out on pins 1 and 2, but the modern
Arduino boards have a delay built into the bootloader to let you grab
control back in those cases.

-- CHS


On Wed, Jan 14, 2015 at 11:49 AM, Boris Borisov <bugyatl at gmail.com> wrote:

> There is some info .. I guess is not impossible  :)
>
>
> http://blog.solutions-cubed.com/programming-the-arduino-uno-with-a-serial-port/
>
> On Wed, Jan 14, 2015 at 10:37 AM, Jim Lynch <ale_nospam at fayettedigital.com
> > wrote:
>
>> On 01/14/2015 08:52 AM, Boris Borisov wrote:
>>
>>> Speaking of USB FTDI cable. Can I use RS232 to TTL cable instead.
>>>
>>>  Carefully, yes.  If this board is a 5V board and your cable is 5V then
>> maybe.  The specs on the board show it's a 3.3 V part but the reviews
>> indicate it's 5V so  check to be sure.
>>
>> A special USB FTDI cable that is commonly used with the Arduino hw/sw had
>> a control pin that does a reset of the Arduino when you start a download.
>>  If you don't wire it up right or if the software doesn't know how to
>> toggle that pin using your cable or your cable doesn't have that pin,
>> you'll have to do a manual reset.  If the picture on the web site is
>> correct that board might not have the reset pin.
>>
>> I'd search for plans on how to program a home brew Arduino board. That
>> should give you all you need to know about wiring to a non standard serial
>> cable.
>>
>> I assume that the Arduino IDE doesn't really care if it's talking to
>> /dev/ttyUSB0 vs /dev/ttyS0.
>>
>> Jim.
>>
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