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211  Using Arduino / Displays / Re: Serial display driving problems on: February 15, 2012, 01:02:59 pm
Thanks for the replies so far!

Unfortunately I don't own a TTL/USB converter, although it is on my shopping list. Is there any way I can modify an Uno board to accomplish the same thing? Like pulling the MCU out so the 8U2 HAS to talk to whatever I've wired up to the Tx/Tx pin headers?

I did remember about the blanking pin :-)) I've got the display to light all segments using synchronous mode so I'm fairly confident the hardware actually works, and the fault lies with me.
212  Using Arduino / Displays / Serial display driving problems [RESOLVED] on: February 13, 2012, 05:37:44 pm
Hi guys,

I'm having a bit of bother trying to get a particular display module working. Here's what I've got:

http://www.embeddedadventures.com/14_segment_led_display_DSP-0801-BLUE.html

I want to use the display in asynchronous serial mode but instead of sending characters to it from a serial monitor on the PC, I want the Arduino (I'm using the UNO board) to do it instead. There's a PIC on-board which is supposed to take the data and do all the heavy lifting for driving the displays, but the data sheet is not very helpful for my chosen application, and being a massive n00b, looking through the source code has left me none-the-wiser as I'm not entirely sure what I'm looking for.

I've checked and double-checked the handful of jumper wires needed and I'm pretty sure I've not done anything stupid like having the Tx/Rx pins the wrong way around.

Any guidelines or helpful hints would be appreciated, it's a very attractive display and I'd like to be able to get some use out of it :-))

Cheers!
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