EspoTek Labrador Board

EspoTek Labrador Board

All-in-one USB Oscilloscope, Signal Generator, Power Supply, Logic Analyzer and Multimeter

Labrador is an all-in-one tool for electronics students, makers and hobbyists. Just plug your Labrador board into a PC (Windows/Mac/Linux), Raspberry Pi or Android device via a MicroUSB cable, load up the software and you instantly have the following engineering tools at your disposal:

• Oscilloscope (2 channel, 750ksps)
• Arbitrary Waveform Generator (2 channel, 1MSPS per channel)
• Power Supply (4.5 to 12V, 0.75W max output, with closed-loop feedback)
• Logic Analyzer (2 channel, 3MSPS per channel, with serial decoding)
• Multimeter (V/I/R/C)

Oh, and did I mention that both hardware and software are 100% open-source?

Specifications

Oscilloscope

• Sample Rate: 750 ksps (shared)
• Bits per Sample: 8, 12 ¹
• Bandwidth: ~100 kHz ²
• Input Voltage Range: -20 V to +20 V
• Input Impedance: 1 MΩ
• No. of Channels: 2
• Coupling: AC/DC

Arbitrary Waveform Generator

• Waveform types: Sin, Square, Triangle, Sawtooth, Arbitrary
• Sample Rate: 1 Msps
• Sample Depth: 512 samples per channel
• Output voltage range: 0.15 V to 9.5 V
• Bits per Sample: 8
• Max. Current: 10 mA ³
• Output Resistance: 50 Ω
• No. of Channels: 2

Variable Power Supply

• Voltage Range: 4.5 V to 12 V
• Max. Power: 0.75 W
• No. of Outputs: 1
• Source Impedance: Negligible ⁴
• Ripple Voltage: ±300 mV% @ 10V 10mA, ±700mV% @ 10V 100mA

Logic Analyzer

• Sample Rate: 3 Msps per channel
• Supported voltage: 3.3V, 5V, 12V
• No. of Channels: 2

Digital Output

• Voltage: 3.3 V
• Source Impedance: 50 Ω

Multimeter ⁵

• Input Impedance: 1 MΩ
• Measured Parameters: V, I, R, C
• Voltage Range: -20 V to +20 V
• Current Range: 100 µA to 10 A
• Resistance Range: 1 ohm to 100 k
• Capacitance Range: 10 pF to 1 mF

Supported Platforms

• Windows: Windows 7, 8, 8.1 or 10. 32 and 64-bit supported.
• MacOS: 10.10 (Yosemite) or later
• Linux: Ubuntu 14.04 or later (or similar). 32 and 64-bit supported.
• Android: Version 4.1 or later

Resources & Downloads

• The Desktop software interface can be downloaded from GitHub Releases.
• The Android software can be downloaded from Google Play.
• GitHub Wiki Page
• GitHub Issues Page

¹ - 12-bit sampling is available at 375 ksps, single-channel only.
² - This figure is an approximate “maximum detectable frequency” dictated by the sample rate.
³ - This figure is for source current. Current is sunk partially into the op amp 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.

Report a problem
Suggest a product