pi blaster cannot be installed

[desinox]

Hello, i have been trying to install Pilaster on a Raspberry Pi 4b (running raspbian 10 with Homebridge) for quite some time now. When I install it via the deb package I don't get an error message, but pi-blaster doesn't work afterwards. When I try to install via source, I always get the following error when running pi-blaster:

MBox Board Revision: 0xc03112 DMA Channels Info: 0x37f5, using DMA Channel: 7 Using hardware: PWM Number of channels: 32 PWM frequency: 100 Hz PWM steps: 1000 Maximum period (100 %): 10000us Minimum period (0.100%): 10us DMA Base: 0xfe007000 pi-blaster: Failed to open /dev/mem: Operation not permitted pi-blaster stopped.

I hope someone can help me, Simon

[AdrianAguilarT]

I’m getting same error when install on RPi 3 B. The only way to get it working is using “sudo pi-blaster”. But i need to do this every time Raspberry restarts.

[hugomon]

Same problem with RPi 3 B and compiled for Raspios Bullseye arm64

[swdee]

Note that you need to run pi-blaster as root/superuser for it to work as it requires access to /dev/mem.