Device Status

RP2040

Device Name: No Device Found

BOOTSEL Button: Released

Active Setup: Channel 1, CC1=74, CC2=71

Connect device to check update recommendations.

Live MIDI & SysEx Monitor


            

          

        


        
        

          

            

              
Hardware Configuration

              Flash Sector 0x001F0000
            

            

              Adjust hardware parameters and write them directly into the non-volatile RP2040 Flash memory via SysEx
              messages.
            


            

              

                
              

              
            


            

              

                CC Parameter 1 (Knob 1)
                74
              

              
            


            

              

                CC Parameter 2 (Knob 2)
                71
              

              
            


            

              
            

          

        


        
        

          

            

              
Web MIDI In-App Flasher

              MIDI SysEx
            

            

              Stream firmware updates directly over Web MIDI. No BOOTSEL button or USB mass storage drive required.
            


            

              
Drop Custom Firmware (.bin / .uf2)

              
or click to use
                official bundled firmware

              
            


            
            
            

            

              
              
            


            

              Ready. Connect device to start.
            

          

        


        
        

          

            

              
Instrument Configuration

              WASM Multi-Wave Synth
            

            

              A local test instrument rendered entirely in a WebAssembly AudioWorklet, independent of the
              connected device. Use it to audition envelope settings and play test notes in the browser.
            


            

              
              Audio Off
            


            
            

              

                WASM Waveform & Envelope Curve
                Sine
              

              
            


            

              

                
              

              
            


            

              

                
                440 Hz
              

              
            


            

              

                Attack
                10 ms
              

              
            


            

              

                Decay
                80 ms
              

              
            


            

              

                Sustain
                70%
              

              
            


            

              

                Release
                250 ms
              

              
            


            

              

                Master Volume
                40%
              

              
            

          


          

            

              
Test Notes

              Octaves C4-C6
            

            

              Click and hold a key, touch on mobile, or play using computer keyboard hotkeys
              (A–K, W, E, etc.).
              Incoming MIDI notes from connected hardware controllers will also play through the synth in real time.