When I was comparing the RP2040 with an ESP32 for audio filters quite some time ago , the ESP32 was winning by a big margin. The Rasperry Pico has been improved with the new RP2350 and I thought it would be interesting to have a comparision: I was using the Read more…
Yesterday, a user was proposing an Arduino Sketch for a Guitar Effects Pedal which is mixing the original input with an effect. Setting up a simple effect is easy, but I have never thought about how to mix the effect with the original input. He was proposing the following process Read more…
I was wondering if the Raperry Pico 2W can be used with my Arduino Snapclient Library. A related discussion was hinting that it is just not powerful enough. In the beginning was stuggeling quite a bit and the audio with Opus was just not working and I could bareliy make Read more…
The starting point for writing audio data from USB to I2S using a Rasperry Pico (RP2040) Microcontroller is the speaker example sketch from my extended TinyUSB library. We would just do an i2s.write(data, len) in the callback: Unfortunately this did not work and this was locking up the output quite Read more…
Today I found the time to test some audio on the Rasperry Pico 2W Microcontroller. I tried out the standard Interenet Streaming sketch from the Audio Tools examples. Unfortunatly, I noticed that the regular WiFi login logic is quite unreliable, but using the WiFiMulti works each time. Here is the Read more…