Not sure if this question has been asked as cannot find anything similar, I am about to start mounting my axo into an enclosure fully enclosed and I want to be able to see the activated LED's during the changes, is there another solder point on the circuit board accessing the LED behavior that I can use to extend these out ?
Apologies if I am repeating this topic..
Question about the active SMD LED's?
Gavin
#1
johannes
#2
There are no solder points available for the LEDs, board space is very constrained...
You could solder a bodge wire to the resistors that limit current to the leds (right behind the leds).
Or change the pin mapping in in the firmware (axoloti_board.h -> LED1_PORT etc), recompile and flash firmware...
Gavin
#3
Thanks Johannes,
Think I'll try the bodge wire to the resistors, I'll leave the awesome firmware work to you guys.
DragonSF
#4
Looking at the schematic and the firmware sources, I can't see any problems using 2 different LEDs and another SW2 connected in parallel (if I'm wrong, please correct me). But I can't see any way, to put the BOOT1 signal in to another switch. It's connected to PB6 and there is a definition in the firmaware SW, but no reference. Is that correct, that BOOT0 (or SW1) is hardwired into the chip? Or is there a chance to use another pin in parallel with the same effect?
I'm using axocontrol, so I guess, I can use PC0/PC4/PC5/PB6 and PB7. They seem to free.
DragonSF
#5
Done! The code was easy to change and adding a bodge wire to SW1 was no big deal. With the new FW, I have now SW1,SW2, LED1 and LED2 outside. If someone wants the new FW or the changed source, send me a message.
If there are other means to publish my changes, please tell me.
Gavin
#6
Can also confirm LED's can be extended quite simply tapping into one end of the SMD (tiny soldering reqd) going into the base of a switching transistor then powering the LED's, in fact this way the SMD's do not light up at all, only the externals.