What is it?

Labrador is EspoTek’s first commercial product: a tiny yet powerful device that transforms your PC or smartphone into a fully featured electronics lab, complete with an oscilloscope, signal generator, logic analyzer, multimeter and power supply! Functions can be accessed through a free, open-source, multi-platform software interface.

All you need is a MicroUSB cable (not included) and you're set to go!

Specs at a Glance

• Oscilloscope (2 channel, 750ksps)
• Arbitrary Waveform Generator (2 channel, 1MSPS)
• Power Supply (4.5 to 15V, 0.75W max output, with closed-loop feedback)
• Logic Analyzer (2 channel, 3MSPS per channel, with serial decoding)
• Multimeter (V/I/R/C)
• Software compatible with Windows, OSX, Linux and Android.

About the Software

The software is designed from the ground-up to be easy to grasp for those new to electronics, while at the same time having some more powerful options for those who are more experienced. These options have just been moved away from the main screen.

Everything (including the oscilloscope display!) can be controlled quickly and intuitively using the mouse, and it's even possible to pause the stream and look at past data without any loss of resolution. Every single sample - all 750,000 of them per second - is buffered in software, allowing you to analyse long waveforms within the software interface itself, or export them to Excel, LibreOffice, MATLAB or Octave.

Detailed Specs

¹ – 12-bit sampling is available at 375ksps, single-channel only.
² – This figure is an approximate “maximum detectable frequency” dictated by the sample rate. Analog bandwidth is higher to the point where it is not a limiting factor.
³ – This figure is for source current. Current is sunk partially into the opamp driving the signal gen and partially into a 1k resistor. Thus, maximum sink current can be calculated by dividing the output voltage by 1k and adding 50µA. This configuration was chosen so that capacitive loads could be driven without significant nonlinearities. In simpler terms, this means that if you’re trying to drive current into the waveform generator through use of an external current source, then the maximum current that the waveform generator can handle is reduced. (This is not something that would be an issue for most people.)
⁴ – The Power Supply is controlled by a closed-loop feedback loop that ensures the DC voltage across output remains constant. Thus, it has nonlinear elements, but can still be approximated by a Thévenin circuit with Vth = Vo and Rth = 0.
⁵ – Multimeter ranges vary with reference resistor used.