Haasoscope

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
Four gains per channel: +-4 V, +-400 mV, +-40 mV, and +-4 mV ranges, with programmable DC offset
Switchable AC/DC input, 50/1M Ohm termination for each channel
Readout over USB-serial at 1.5 Mb/s, about 20 Hz for four channels of 512 samples each, works with PCs, Raspberry Pi, Arduino, etc.
Optional USB2 hat for 20x faster readout
Optional 128 x 64 mini display with SPI interface
22 spare high-speed digital I/O (100+ MHz)
4 spare low-speed digital I/O (via I2C bus)
9 additional analog I/O, 1 MSPS (combined) at 12 bits
4 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
Haasoscope	4	125 - 250	60	32k	Yes	Yes! Yes! Yes!	Yes!
Rigol DS1104Z	4	1000	100	12M	No	No No No	No
PicoScope 2205A	2	200	25	16k	Yes	No No No	No
Owon VDS1022I	2	100	25	5k	Yes	No No No	No
OpenScope	2	6.25	2	~100k	Yes	Yes Yes Yes	No
SmartScope	2	100	45	2k	Yes	Yes Yes No	No