Ray OFFLINE Moderator Posts: 702 Thank you received: 152 Karma: 44 There are several ways to automatically launch an effect (program) right after powering Pedal-Pi (Raspberry Pi Zero). This is how I do it but there are others ways to do the same thing, I got the info from here: https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/ So, the way I do it: I compile the effect I want to use, more info here: Create, Edit and Compile any Code I edit rc.local:sudo vim /etc/rc.local and insert the effect I would like to play when powering pedal-pi, in this case the "multi" effect:sudo /home/pi/Pedal-Pi-All-Effects/multi & It is done.. I will work, but you can go a bit further; as we explain here: "Reduce Noise in Pedal-Pi" the pedal sounds much better if you disable the wifi, If you use a standard Pi Zero (not W) just unplug the dongle, If you use a W model, check the next step To disable wifi in W Raspberry Pi Zero , the only other thing I can think of is to disable the loading of the drivers as they explain here: https://www.raspberrypi.org/forums/viewtopic.php?t=138610 edit:/etc/modprobe.d/raspi-blacklist.confand insert:#wifi blacklist brcmfmac blacklist brcmutil #bt blacklist btbcm blacklist hci_uart Done! Last Edit: 4 years 7 months ago by Ray. The administrator has disabled public write access. The following user(s) said Thank You: travis