Oscillo
Oscilloscope projects: one instrument — oscilloscope, spectrum analyser, logic
analyser and meter — on a Raspberry Pi Pico 2 (PiLyzer) or an Arduino R4
(ArLyzer), and the applications that drive both.
| Project | Hardware | Applications |
|---|
| Pico2 | Raspberry Pi Pico 2, bare or behind a front end — the PiLyzer AFE, a one-op-amp mini AFE, or a picoLABO PL2407AFE; an original Pico too, bare or on the PL2407AFE | macOS · WebUSB |
| ArLyzer | Arduino Nano R4, UNO R4 Minima or UNO R4 WiFi — the same protocol as the Pico 2, up to eight analogue inputs and logic on D2–D9; the UNO R4 WiFi also over Wi-Fi | the same macOS · Web applications |
| PCBScope | PCBScope / DPScope SE | Native macOS HID application restored from the original project |
Open PiLyzer Web ·
Download macOS releases ·
Watch the introduction (6 min, Japanese with English subtitles)
The build log, in English with Japanese subtitles: PiLyzer #1 ·
PiLyzer #2 · ArLyzer on three Arduino R4 boards
PiLyzer's firmware, KiCad schematics, documentation and native app now live
under Pico2/; ArLyzer's sketch and the UNO R4 WiFi's Wi-Fi bridge under
ArLyzer/. The Git repository remains at this level. Each native app is
an independent Swift package; run its build commands from its own directory.
(cd Pico2 && ./Scripts/make-app.sh)
(cd PCBScope && ./Scripts/make-app.sh)
PiLyzer Web talks directly to the instrument in Chrome or Edge on a desktop
computer — macOS, Windows and Linux alike, with nothing to install on any of
them: WebUSB for a Pico 2 (firmware 1.6 and later), Web Serial for an ArLyzer.
A Pico 2 W or an UNO R4 WiFi serves it itself over Wi-Fi, at
http://pilyzer.local or http://arlyzer.local, so a phone or a tablet needs
no USB at all. Demo mode also works without an instrument: Try demo in
PiLyzer Web, and from 3.3.10 Start a demo in the middle of the Mac app's
empty screen, each one click.
Captured samples remain in the browser; CSV export saves them locally.
From 3.3.6, the copy on GitHub Pages counts page views, and which way an
instrument was connected (USB, serial or the demo), with Google Analytics. The
copy a board serves, and one run locally, load nothing of the kind, and no
samples, readings or device details are sent.
