#### What is it?

A very cheap logic analyzer but with capabilities comparable to expensive comercial ones. The analyzer can sample up to 24 channels at a maximum speed of 100 million of samples per second (and 200 million of samples per second when use a Raspberry Pi Pico 2), and it can be triggered via a polarity change in a single channel or a pattern formed by up to 16 channels.

The project does not only comprehend the hardware but also the software, it has a multiplatform application that allows to visualize and analyze the signals. As the device is very unique its protocol is not compatible with other softwares like Sigrok, but the client allows also to export the captured data in a compatible format that can be read by other programs (there is even a cmd application to capture driectly to this format if you don't want to use the GUI application).

The project is based on the Raspberry Pico and it supports its two variants, the regular Pico and Pico 2

#### Device characteristics

The device sold here is based on Rapsberry Pi Pico 2, version 6.0 of the Logic Analyzer device; Pi Pico 2 is used to reach up to 200 megasamples/second.

The onboard level shiftesr board to use voltages that range from 1.6v to 5v, it is referenced by default to 5v but you can reconfigure it, changing the dupont wire position to accept 3.3V or an external reference voltage.

Sample 24 channels at once.

Data capture can be triggered via a polarity change in a single channel or a pattern formed by up to 16 channels.

Sigrok protocol decoders are integrated into the software frontend, you can view the capture data decoded as I2C, SPI, CAN, UART, Z80 bus, PS2, USB, LIN, I2S, modBUS, JTAG... there are 133 decoding schemes available

Frontend software operates at Windows, Linux, Mac OS and ARM based computers.

Physical connection between computer and Logic Analyzer is USB based; Raspberry Pi Pico 2 connector is USB-C based.

#### Why did you make it?

A new relatively vintage system that operates which bus operates at 50 MHz arrived at me, but the other inexpensive logic analyzers are not suitable for a bandwidth like this...

After searchign for affordable options, this device was found,

Device and software is designed by Dr. Gusmanb:

https://github.com/gusmanb/logicanalyzer

After a batch manufacturing, there are remaining units that could be useful for more colleagues in need of a logic analyzer with good capabilities at affordable prices.

#### What makes it special?

Its low cost nature with capabilities compared to expensive logic analyzers, turns this device into a true game changer.

As well, the high integration of its software frontend, specially designed to deal with multiple channel data captures; compatible with Windows, Linux, Mac OS and ARM based computers.

#### Software releases

https://github.com/gusmanb/logicanalyzer/releases

#### Logic analyzer software

1: File menu, allows to manage capture files.
2: Protocol analyzers menu, allows to invoke installed protocol analyzers.
3: Network settings, allows to configure a WiFi device network settings.
4: Refresh button, refreshes the list of available COM ports.
5: Port selector, selects the device to connect to.
6: Open/Close device button, connects or disconnects to a device.
7: Device identification, shows which device type is connected to the software.
8: Repeat capture button, repeats the last capture with the same parameters.
9: Capture button, opens the capture dialog.
10: Abort button, cancels a running capture.
11: Channel viewer, shows the info of the captured channels.
12: Sample viewer, shows the captured samples.
13: Sample viewer position, slides the sample viewer.
14: Sample marker, shows which samples are displayed and is used to perform operations over the samples.
15: Analyzed protocol data, this is how data of a protocol analyzer is shown.
16: Sample viewer selector, selects how many samples are displayed in screen.
17: Capture info, shows information about how the current capture was realized.

Fully detailed description is provided here:

https://github.com/gusmanb/logicanalyzer/wiki/06---The-LogicAnalyzer-program