Brunelles is my new guitar pedal project made around some spare parts. This is a kind of upgrade of my Aelis platform (based on the Spin FV-1 DSP).
Controls:
– Rotary encoder + switch
– Endless potentiometer
– 128×64 OLED display
– Footswitch + LED
Features:
– µC: XIAO #RP2040
– Codec: CS4272 (or 71)
– True bypass
It’s the first time I use mostly SMD components. I’m not very happy with the routing but I have to start somewhere.
I largely reworked the Brunelles layout and routing.
In the meantime I received another PCB I designed to validate a few things before sending the Brunelles PCB for fabrication. This is a CS4272 audio codec breakout.
The chip placement is not bad, but I definitely need to sharpen my skills with SMD capacitor soldering! Look at those placements! 😂 I also need decent tweezers and a better sight.
I’ll publish the schematics + PCB soon.
Continuing this paused project started a few years ago… Meanwhile the Raspberry team released the #RP2350 which is a significant upgrade to the #RP2040, offering more power for signal processing.
The PCB is populated with the SMD components and the lowest through-hole parts.
I started the mechanical work. I only have a hand-held drill and as usual I struggle to place the holes right. 😬
Before continuing soldering, I have to check if everything is fitting and vertically aligning well.
Firesledge 🔥🛷