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ambit 250 max232 ttl set up help, - Printable Version

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+--- Thread: ambit 250 max232 ttl set up help, (/showthread.php?tid=2610)



ambit 250 max232 ttl set up help, - boyley1984 - 24-06-2013

hi, can someone please show me the correct way to connect my ambit 250 to my max232 board

max board [Image: sku026822-07.jpg]#

i have 4 wires blue, red, white, yellow.
[Image: 02.jpg]

can you show me were to connect on ambit board as theres pins and i know ones isint used but not sure wich,


RE: ambit 250 max232 ttl set up help, - drewmerc - 24-06-2013

what is the exact chip on your 232 board, is it MAX232EPE as this is a 5v chip and not the required 3.3v (really this is why i made the recommend tools sticky you could have save all the trouble and money)

anyways data tx to txd-isp, data rx to rxd-isp, gnd(any) to gnd-isp, 3.3v not connected so power the max232 via an external 5v power supply

[Image: ttl_serial_186.jpg]

interesting read http://www.dd-wrt.com/phpBB2/viewtopic.php?t=162332&postdays=0&postorder=asc&start=0


RE: ambit 250 max232 ttl set up help, - mollymac - 10-05-2015

I have order a RS232 To TTL Converter Module Serial Board MAX232CPE

Input: 3.3V to 5V USB Power.
Output: 5V.

will this work?


RE: ambit 250 max232 ttl set up help, - drewmerc - 10-05-2015

just buy a usb ttl cable off ebay http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR11.TRC2.A0.H0.Xusb+ttl.TRS0&_nkw=usb+ttl&_sacat=0


RE: ambit 250 max232 ttl set up help, - mollymac - 10-05-2015

I already have a cable..my broad seems to be broke,
and ordered RS232 To TTL Converter Module Serial Board MAX232CPE

my old chip was cpe