Pico.Lab: turn a Raspberry Pi Pico into a browser-based scope and logic analyzer

Pico.Lab, by Maximilian Kern (CoretechR), is an open-source embedded bring-up tool for the Raspberry Pi RP2350 and RP2040. It serves a window-based web interface straight from the Pico's flash over a virtual USB Ethernet link, so there is no host software, driver or WebUSB: plug it in, open http://pico.lab (or http://192.168.7.1) in any browser, and drag tool windows around. The tools are a 4-channel oscilloscope (an overclocked ADC with DMA streaming, about 400 kHz of bandwidth), an 8-channel logic analyzer that captures at up to 100 MS/s with UART, I2C and SPI decoders, GPIO control with pull-ups and PWM, a data logger with CSV export, a UART terminal, and I2C and SPI masters for scanning and raw transactions. There is also a serial CLI at 115200 baud for scripting. It runs best on the author's custom Pico.Lab board, which adds a 1.65-5.5 V logic range, an adjustable 1-5 V power rail with current measurement, a 12 V analog input range with op-amp buffers, and ESD and over-voltage protection; the power supply controller only works on that board. But the firmware is compatible with a standard Raspberry Pi Pico (RP2040) or Pico 2 (RP2350) out of the box: hold BOOTSEL, plug in, and drop the matching .uf2 file on the drive. The author is upfront that a $1 microcontroller on a USB 1.1 link won't match a dedicated scope or logic analyzer; it is meant for quick questions like why an I2C sensor won't answer. The author also notes AI generated much of the firmware, web frontend and docs. GPL-3.0.