Haasoscope is the first open source, open hardware, flexible, small, cheap, oscilloscope and data-acquisition board. You can use the stock firmware for basic oscilloscope functionality, or modify the firmware to customize what the Haasoscope does. You can add a fancy trigger algorithm, use the FPGA to process the input data, make use of other analog or digital I/O channels, or whatever! Oh, and just connect two or more Haasoscopes together if you need more input channels!
Haasoscope is also far more powerful than a normal oscilloscope. Imagine trying to build a ping-pong playing robot, a levitating magnetic platform, or a self-navigating drone - you’d need to read in high-speed data from various sensors, analog and digital, process all that data quickly, and respond in real-time. No problem - Haasoscope can handle that, even while running on batteries.
Who Needs It and Why?
If you’re a hobbyist on a budget, there’s no need to buy a $500 scope to debug circuits anymore, even high-speed ones. Haasoscope has all the features you need, plus it’s expandable and customizable, can be powered from USB, and fits in your pocket - all at a fraction of the cost of a full size ‘scope.
Haasoscope is also a great platform for students. They can see high-speed circuits in action, learn FPGA programming, data transmission protocols, etc. - at a price affordable for the classroom. They’re perfect for a lab class in EE, CS, or physics.
You can even use Haasoscope for professional work - scientific research, industrial applications, communications, security, entertainment, finance, … anytime you need to tackle high-speed data on a project. Haasoscope’s flexibility and expandability lets you build a system that meets your needs, whether it’s four channels and solar-powered in a remote desert, or 400 channels monitoring electronic noise levels in a cell-phone tower.
Features & Specifications
- Four high-speed ADC channels, up to 125 MSPS each, 8-bit, ~60 MHz bandwidth, BNC inputs
- Switchable oversampling to make two very high speed ADC channels, up to 250 MSPS each
- Intel/Altera MAX10 FPGA with 8k logic elements and 387 kb of memory (enough for 8k samples / channel for each event)
- Reprogram firmware over JTAG with free Altera software for Windows or Linux (or Virtualbox on Mac)
- Python user software for waveform display and control of all features, including FFT
- Two gains per channel: +-5 V and +-500 mV ranges, with programmable DC offset
- Switchable AC/DC input, 50/1M Ohm termination for each channel
- Readout over serial at 1.5 Mb/s, about 20 Hz for four channels of 512 samples each, works with PCs (using optional serial-to-USB adapter), Raspberry Pi, Arduino, etc.
- Optional 128 x 64 mini display with SPI interface
- 22 spare high-speed digital I/O (100+ MHz)
- 16 spare low-speed digital I/O (via I2C bus)
- Nine additional analog I/O, 1 MSPS (combined) at 12 bits
- Four programmable LEDs and a reset button
- USB powered, (or other 5 V input, switchable), ~1 Watt
- 6.2 x 8.9 cm (just bigger than a credit card)
Comparison Table
| Channels | Sample rate (MHz) | Bandwidth (MHz) | Recording depth | PC user interface and display | Open source firmware, software, hardware | Expandable to more channels | Price | |
|---|---|---|---|---|---|---|---|---|
| Haasoscope | 4 | 125 - 250 | 60 | 32k | Yes | Yes! Yes! Yes! | Yes! | $99 |
| Rigol DS1104Z | 4 | 1000 | 100 | 12M | No | No No No | No | $619 |
| PicoScope 2205A | 2 | 200 | 25 | 16k | Yes | No No No | No | $199 |
| Owon VDS1022I | 2 | 100 | 25 | 5k | Yes | No No No | No | $105 |
| OpenScope | 2 | 6.25 | 2 | ~100k | Yes | Yes Yes Yes | No | $79 |
| SmartScope | 2 | 100 | 45 | 2k | Yes | Yes Yes No | No | $179 |
Current Status
Protoypes
Haasoscope has been through several prototypes and various rounds of testing/tweaking. There are a few different prototypes seen here on the page. More information on prototypes can be found in the updates section.
Software screenshots
Haasoscope has a full suite of triggering abilities in the stock firmware/software. Shown here is a basic falling edge on chan 6, with time and threshold indicated by the dashed crosshairs.
You can connect Haasoscopes together and show as many channels as you want on the same screen (or turn some off). Triggers and data are synced accurately between connected Haasoscopes!
FFT display is built in (along with other advanced features, like sin(x)/x filtering). Here's a nice clean 5 MHz square wave and its FFT.
Manufacturing Plan
Boards will be produced and assembled by MacroFab in Houston, TX. A few parts will then be soldered on by hand.
Shipping & Fulfillment
Everything will be shipping from Crowd Supply’s warehouse in Portland, Oregon. To learn more about placing your order and shipping, please review this guide.
Risks & Challenges
It’s possible that some bug could be found in the board design, or they are found to be unreliable. This would require an additional board design fix and prototype round. But prototypes have already been tested that work well and have operated nicely for weeks.
