Graphical Displays with PBP3

[Ioannis]

That is awesome!

Thanks for sharing,
Ioannis

[rocket_troy]

Fantastic work again Richard!

Would you have any particular recommendations for a display to purchase for a newbie just as a play-around learning tool ?

Regards,

Troy

[richard]

if you don't mind waiting a few weeks the nokia 5110 from china is <$5 . the 7110 have a weird connector and are best avoided imo ,both are good size
not too many pins needed, 3-5v ok.
the ssd1306 are about $8 locally but they are pretty small need only two pins if you get i2c variant, 3-5v ok.
if you catch a special at https://www.rockby.com.au/Index2012.cfm the 128x64 glcd can be real cheap < $5 but need heaps of pins to drive them 5v only.
they all work .

[rocket_troy]

Thanks Richard,
Ordered a 5110 from Ebay. Looking forward to having a play.

Cheers,

Troy

[rocket_troy]

Richard,
Received my 5110 display today and have just started to have a play. The nokia demo appears to display perfectly - excellent. I'm a bit stumped on one thing I'm trying to do. The nokia demo draws a circle:

DRAWCIRCLE 64,15,12

which I assume is a circle located a x=64, y=15 and radius of 12 yeah?

so I'm trying to draw a line from the centre of the circle to the top of the circle (or vice versa) so I tried:

DRAWLINE 64,3,64,15,1

which I assume is drawing a line from starting point X=64, Y=3 to ending point X=64, Y=15

And indeed the line starts at the correct point (top centre) but only extends down 7 or 8 pixels ie not to centre of the circle?

Any ideas?

Regards,

Troy

[rocket_troy]

So, what's happening (for me) is for a line that's wider than it is higher (or equal), it appears from very initial testing to draw correctly. But if it's higher than it is wider, it doesn't?

Troy

[richard]

it appears there was a bug in drawing vertical lines. this now works