THIS PRODUCT HAS BEEN RETIRED AND IS NO LONGER AVAILABLE
FScope-500k DIY OsCILlOsCOPE
Combine the FSCOPE-500K with a Raspberry Pi Pico or Pico W* and the Scoppy Android app* to create a 500kS/s oscilloscope.
Simply solder a Pico (or Pico W) to the board together with 0.1" header pins and the supplied trimmer capacitors and you have a 500kS/s oscilloscope.
The FSCOPE-500K is also available fully assembled. See the DSO-500K product page for more information.
Features and Specifications
Up to 500kS/s sample rate (250kS/s with both channels enabled)
Maximum analog bandwidth: 150kHz
Record length: 2048 samples per channel in RUN mode, 100kS total for single shot captures
Input Impedance: 1MΩ / 22pF
Maximum Input voltage range: +/- 6V (1X probes)
Coupling: AC/DC
Connectivity: USB, Wi-Fi*
Display Modes: YT, FFT, FFT+YT, X-Y, X-Y+YT
Trigger Types: Rising edge/falling edge
Trigger Modes: Auto/Normal (Run Mode + Single captures)
Cursors: YT and FFT horizontal and vertical cursors
On-screen measurements: Vmin, Vmax, Vpp, Frequency, Period, Duty
Snapshot measurements (screen or sample record): Mean, DC RMS, AC RMS
Export data format: CSV
Access to all pins of the Raspberry Pi Pico
Signals can be input via 0.1” header pins or BNC connectors*
Signal generator - square wave up to 1.25MHz, sine wave - 1kHz
AC and DC coupling of the input signals
Indicator LEDs: Status, Wi-Fi and Trigger
FFT Window functions: Hann, Hamming, Blackman, Rectangle
FFT Vertical units: dBm, dBmV, V
Logic Analyser: 25MS/s (requires soldering extra headers to the board - not supplied). No protocol decoding as yet.
See the Scoppy project on GitHub for the features of the Scoppy oscilloscope firmware and Android app
More Information and Assembly Instructions
The assembled FSCOPE-500K board (with optional BNC connectors) connected to an inexpensive Android device (Nokia 2.1) running the Scoppy App
Buy
The FSCOPE-500K is no longer available for purchase
What's included?
FSCOPE-500K board
2 Trimmer capacitors per board
4 Plastic feet per board
Please note that the Raspberry Pi Pico, Android device, headers pins and sockets, BNC connectors and scope probes are NOT included
Some soldering is required. Please see the assembly instructions.
What You'll Need
An Android device that's running Android version 6.0 (Marshmallow) or higher. The device must also support USB OTG (On-The-Go) - most modern phones/tablets do. If you are able to install the Scoppy app from the Play Store then (Google thinks) it does support USB OTG.
A compatible OTG cable/adapter (not supplied). Even if you are planning to use Wi-Fi, we recommend having a compatible OTG (On-The-Go) cable so you can access the firmware settings in the event you can't connect via Wi-Fi (eg. if your Wi-Fi password changes or the Wi-Fi settings in the firmware were entered incorrectly). The OTG adapter plugs into the USB port of your Android device.
Please Note
Raspberry Pi Pico (or Pico W), Android device, header pins, BNC connectors and scope probes are NOT included
Use of the second channel requires the premium version of the Scoppy Android app (approx US$2 in-app purchase)
Wi-Fi functionality is only available with the Pico W (ie. not the Pico)
Some assembly required
Gallery
Assembled FSCOPE-500K with Pico W soldered directly to the board
Assembled FSCOPE-500K (with optional BNC connectors) and the Scoppy Android app
FAQ
Do I need oscilloscope probes to use the FSCOPE-500K?
No. You can use dupont wires if you don't have probes.
Is the FSCOPE-500K suitable for use in the classroom as part of a STEM curriculum?
Yes, the FSCOPE-500K has been specifically designed to work with low voltage circuits typically used in STEM education. Once assembled, the FSCOPE-500K has many of the features of a benchtop oscilloscope but at a fraction of the price (eg. FFT, X-Y mode, cursors). When used with a Pico W, the Wi-Fi capabilities of the FSCOPE-500K allow the oscilloscope to be controlled from the Android device without a physical connection. For pricing of classroom sets of more than 20 boards please contact us at store@fhdm.xyz
For a full assembled alternative to the FSCOPE-500K, see the DSO-500K product page.