Any place to connect Disk / HDD LED on Analog IO board? (Checkmate Case)

[thisisamigaspeaking]

Got a v6.1 IO board and I'm putting it in a Checkmate case. Is there any place to connect an HDD LED (i.e. a PC case style HDD LED)? Thanks.

[MostroW]

IO Board has designations for external LED's Check schematic for directions on how to connect the correct terminal(s)

[thisisamigaspeaking]

Oh I see now, "Ext. LEDs" I didn't notice that connector when I first replied. Duh. Thanks!!!

[MostroW]

you're most welcome!

[thisisamigaspeaking]

IO Board has designations for external LED's Check schematic for directions on how to connect the correct terminal(s)

Would you mind taking a look at this thread? I have brought it back to clarify the diagram and explanations in it.

[MostroW]

what the diagram shows is correct, pin 1 is +5v and the other pin goes to GPIO connector pin 3 to complete that circuit and the DE10 controls it's on / off state.

about the checkmate case i can't say anything about the LED part, but adding a resistor is to prevent the current from destroying the LED if it would exceed (typically 20mA) it's rated current.

for additional reading, this could potentially help.

i'm not an expert in these kind of things, and also need to read up a lot of the time, so in that regard any expert advice would be most welcome.

[legacypixels]

IO Board has designations for external LED's Check schematic for directions on how to connect the correct terminal(s)

Would you mind taking a look at this thread? I have brought it back to clarify the diagram and explanations in it.

I would ignore everything in that thread, except maybe the nice colorful hookup diagram. The page that MostroW linked is a really good explanation of LEDs work.

[thisisamigaspeaking]

IO Board has designations for external LED's Check schematic for directions on how to connect the correct terminal(s)

Would you mind taking a look at this thread? I have brought it back to clarify the diagram and explanations in it.

I would ignore everything in that thread, except maybe the nice colorful hookup diagram. The page that MostroW linked is a really good explanation of LEDs work.

Great thank you, I commented there pointing out the incorrect information (as I understand) so anyone else visiting isn't confused as well.

This is from the Checkmate case. What I believe it shows is two LEDs run in parallel with a 100 ohm resistor, which is correct for standard LEDs at 5V. So I believe I should just connect the wires to the Amiga side. The PC side assumes there are resistors on the motherboard.

leds.png (412.49 KiB) Viewed 1825 times

edit: Confirm that the place to connect the HDD LED on a Checkmate case is the "Amiga" side. I removed the connector housing from the wires and slid them over pin 1 (+5V) and pin 3 (disk) on the 7-pin connector on the I/O board. Works well. Easier than adding your own resistors.

edit2: I ended up making a proper cable with connector because I didn't want to trust tape to do the job.

wire.jpeg (104.56 KiB) Viewed 1769 times

[creedpatton]

A very late reply to this thread, but I just wanted to thank you for clarifying how to get that LED working!