Measuring micro-amp and nano-amp current on the cheap

In order to test and benchmark the various products we will discuss including microcontrollers (MCU’s),  integrated BlueTooth systems on chip (SoC), we need to have equipment capable of accurately measuring currents in the nanoamp (nA) and microamp (μA) range.  One of the least expensive ways I have found to do this is using this μCurrent from Dave Jones who writes the EEVBlog.  Plug it into your favorite multimeter or data recorder and set the correct current range, and your off!

uCurrent Gold precision low-current multimeter adapter
uCurrent Gold from Dave Jones at EEVBlog

The key to this device is that it has a very low burden voltage, which means that the measurement itself won’t disturb the actual device under test much by dropping voltage along the line it’s connected to.

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Our goal is to share our knowledge on electronic product design for low-power applications such as IoT, wearables, and medical devices.  Topics will include a smattering from management topics to hard-core electrical engineering including:

  • Innovation (it’s a process not an invention)
  • Product Management (from opportunity identification to product launch)
  • Outsourcing: Offshoring and Nearshoring (with a bit of a personal bias)
  • Electronic Design (the nitty gritty) covering a variety of topics:
    • Embedded system design
    • Microcontrollers, Wireless Radios and combined Systems on Chip
    • Testing and benchmarking
  • Industrial Design and product packaging (admittedly, with a little help from some friends)

Wherever possible our goal is to give you a simple and concise explanation first, so you can get to the main point and move on, then give you the option to dig deeper into the rabbit hole.

We hope you enjoy it!