its a 240x64 glcd
I've never really looked into it, but I just don't get negative voltage...Isn't it just a power supply connected backwards? Tongue</ignorance>
yea but how do you wire a power supply both backwards and frontwards at the same time Smiley (ok its super easy if your using an AC source or batteries, but from a DC wall wart)
Isn't it just a power supply connected backwards?
It's funny that I keep telling myself I shouldn't spend ~20 bucks on stuff I don't need (GLCD), and then I find myself placing a $25 dollar order for things I DEFINITELY don't need
...until I found this one which just uses a 555 timer, a couple extra caps and a couple of diodes (which can run upto 15 volts which is close enough for contrast)
Well you know you need one of these:
Where did you get the +15V from in the first place?
arent you going to need some type of HVT to run the CCFL
Good catch. I hadn't noticed that it had a CCFL.
*Negative voltage generator on board*Inverter for CCFT on board