[GPIO I/O] Example 74HC595 shift register & SPI

#21

Are pin 8 and 13 connected to GND too?
Same VDD for switches is fine.

#22

Yes but I think it might be clever to double check my connection with a multimeter first.

#23

Also having trouble loading this patch. Axoloti says 'finished loading objects' but nothing happens. Same with the second patch. Your last one loads (three 74hc595.axp). Not sure what causes it to not load. I'm on Linux running:
Axoloti version : 1.0.12-1-0-g4de2b63 (also tried the stable release)
Firmware version: 1.0.0.1, crc=0xE95BAC96, entrypoint=0x20011000

I'm sure the last one will help though. Appreciate you putting this together!

#24

Heheh. Nevermind. It's just the windowPos, I have a single monitor, so it was just offscreen. Opened the file and changed it to this:

<windowPos>
<x>100</x>
<y>0</y>
<width>1000</width>
<height>700</height>
</windowPos>

Cool. Learning axoloti patch files already :slight_smile:

#25

Im trying to learn how to use 595 for leds. Im starting from simple so Im trying to work with one 595. I can't get it work properly. I have attached pins according to this thread. I tried using all the patches in this thread too. I tried to edit them to use only one 595. No luck. I don't get the Gpio/spi config object..what are the inputs?

Any suggestions?

#26

Man there's rarely a day going by without me wondering what ever might have happened to @paul... we need you, come back!