60% keyboard LEDs

[SectorOMEGA]

Hello, Everyone. Today I have collected my switches from the couriers and I will be starting my first build. I have also bought 2x3x4mm LEDs as I'm after full light. The only thing that bothers me is the connections. 62 LEDs is it possible to power them up(not full power of course) with the teensy. Tried to dig something from the internet but nothing useful. All advises welcome

[flashjac]

The information you are looking for can be found in the ATMega32u4 datasheet. The footnote for Table 29.1 explains the groups of pins and the total current each group can sink or source. A Teensy 2.0 has 21 I/O pins, and 19 of those will be used for the keyboard (I am assuming you are building a 60%). If the remaining two pins are used to drive all the LEDs, the maximum current you can sink or source is 2 * 40mA (absolute maximum) = 80mA.
If you arrange the LEDs like this:
(I/O pin A --- Resistor --- LED --- LED --- Ground) x 15, and (I/O pin B --- Resistor --- LED --- LED --- Ground) x 16
then you can get 2.5mA per LED. This is about 1/10th of the nominal maximum LED current, so they will be very dim.

I would recommend you use a transistor or MOSFET controlled by the teensy to provide power to the LEDs instead of powering from the Teensy.

[libertycannon]

good luck

[SectorOMEGA]

This will be quite tricky to solder but worth giving it a shot Meanwhile, the whole thing is done finally. Awaiting the Dolch keycaps so I can enjoy my first DIY one :
 

[TalkingTree]

Haven't you considered using a premade PCB? Most of them support ISO and backlighting. It would be just a matter of soldering components.

[SectorOMEGA]

This was totally new to me, so it was more likely giving it a shot to see if I'm capable of doing this but 100% my next one will be on PCB. The soldering was pain in the... Right now I'm after 60% wooden case making. I have tried to find 60% ISO supporting boards but no luck. I have found that more of the PCBs are ANSI which is not so comfortable to me. Also looking at making it wireless probably with adafruit

[SectorOMEGA]

And finally, there it is My first 60%

[TalkingTree]

Nice job. Congrats.

[SectorOMEGA]

Thank you But now I have a strange issue or more likely a bug. The left alt and win key are flipped. tried to reflash the code, but nothing. Looking at the wiring nothing visible. Any ideas would be great

[TalkingTree]

The left alt and win key are flipped.

Post your code.

[SectorOMEGA]

I'm using the QMK firmware builder. The strangest thing is that it was working brilliant until today and it got flipped.When I flip the lalt and win key in the builder is working normally. So this makes me think its and hardware issue Really stange

[TalkingTree]

When I flip the lalt and win key in the builder is working normally. So this makes me think its and hardware issue

Most likely. You should visually inspect the area.

[a-c]

Probably bootmagic

https://github.com/tmk/tmk_keyboard#boot-magic-configuration---virtual-dip-switch