[sdiy] CZ101 display upgrade

Adam Inglis 21pointy at tpg.com.au
Tue Jul 17 03:33:15 CEST 2012

Just FYI for the CZers out there..

So I was mis-reading the specs, the single figure milliamp draw is for  
the LCD alone, all the backlit displays use 20-100 mA.

It's in and looks great - I found a ridiculously cheap one (less than  
3 aussie dollars - insane!!) on ebay with smaller dimensions... 80x36  
mm not 84x44 mm


which initially looked like a problem to mount. But by mounting it by  
the lower edge not the upper, and using the crossbar of the mounting  
frame, it sits perfectly aligned with the viewing window, and the  
problem of increased depth is sorted as well. I added a 47 ohm  
resistor to the backlight power line from the 5 volt supply.

Thanks to those who helped

On 04/07/2012, at 4:14 PM, Gordon JC Pearce wrote:

> On 04/07/12 05:49, Adam Inglis wrote:
>> Thanks all for the replies. The OLEDs look great and fit the  
>> dimensions
>> perfectly - only problem may be they pull 30mA of current compared to
>> single figures for the backlit LCDs.
> Well, they would, wouldn't they?  So would a backlit display!
> 30mA is nothing in the context of the whole instrument.  You'll get  
> maybe two minutes less out of a set of batteries.
> -- 
> Gordonjcp MM0YEQ

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