Scoppy - Oscilloscope 1.029

The Scoppy app, when paired with a Raspberry Pi Pico or Pico W, offers an impressive solution for those seeking to develop a cost-effective oscilloscope and logic analyzer. Operating as a 500kS/s oscilloscope and a 25MS/s logic analyzer, this combination exhibits notable performance features suited for both hobbyists and professionals in electronics.

Key Features:

• Wireless connectivity with the Pico W
• Adjustable horizontal scale and position
• Configurable vertical scale and position
• Selectable trigger channel and level
• Supports rising edge and falling edge triggers
• Various triggering modes: Auto and Normal
• Capture modes: Continuous (Run) and Single
• Memory depth of up to 100kpts for individual captures
• Vertical and Horizontal Cursors for precise measurements
• Options for auto or fixed sample rate
• % pre-trigger samples setting for enhanced control
• Integrated Signal Generator capabilities:
• • Square wave (100Hz - 1.25MHz)
  • 1kHz PWM sine wave
• X-Y Mode functionality
• Fast Fourier Transform (FFT) analysis:
• • Select from Hann, Hamming, Blackman, and Rectangle windows
  • Vertical and horizontal cursors for measurement precision
  • Multiple vertical units: dBm, dBmV, and V
  • Simultaneous display of both channels optional
  • Option to view the scope window alongside the FFT analysis
• Adjustable probe attenuation settings (1X, 10X, custom)

Oscilloscope Features:

• Two channels available
• Sampling rate of up to 500k samples per second (shared across channels)
• Time/Div range: 5us to 20s
• Up to four configurable voltage ranges per channel (details available in help section)

Logic Analyzer Features:

• Eights channels for analysis
• A sampling rate of up to 25M samples per second (per channel)
• Time/Div range: 50ns to 100ms

Analog Front End:

The input signal can be connected directly to the Pico ADC pins, providing a 0-3.3V input range. Alternatively, users can design their own analog front end to expand the input range. Several economical open-source designs are readily available at oscilloscope.fhdm.xyz, with affordable options also available for purchase at store.fhdm.xyz.

More Information:

Dive deeper into installation instructions for setting up the free firmware on your Pico or Pico W by visiting: GitHub - fhdm-dev/scoppy and oscilloscope.fhdm.xyz.