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BACK IN STOCK – I²CDriver + SPIDriver

4267 4268

BACK IN STOCK – I²CDriver + SPIDriver


I²CDriver is an easy-to-use, open source tool for controlling I²C devices and a great tool to help with quick driver development and debugging. It works with Windows, Mac, and Linux, and has a built-in color screen that shows a live “dashboard” of all the I²C activity. It uses a standard FTDI USB serial chip to talk to the PC, so no special drivers need to be installed. The board includes a separate 3.3 V supply with voltage and current monitoring. It’s kinda like a Bus Pirate with a display and great Python support.

4267 demo ORIG 2019 06

It’s in every phone, in your embedded electronics, in every microcontroller, Raspberry Pi, and PC motherboard. It’s a mature technology – still going strong after 36 years. Because it’s everywhere, I²C is used by everyone from novices to embedded designers. But the common element of everyone’s I²C experience is struggle. Instead of being easy, I²C very often feels really difficult. Because there are so many ways for I²C to go wrong, things rarely “just work” and instead involve some painful debugging.

While other I²C tools might offer a couple of LEDs, I²CDriver has a clear logic-analyzer display of the signal lines plus a graphical decoding of the I²C traffic.

In addition, it continuously displays an address map of all attached I²C devices, so as you connect a device, it lights up on the map. You’ll never have to ask “is this thing even switched on?” again.

4267 kit ORIG 2019 05

The current and voltage monitoring let you catch electrical problems early. The included color-coded wires make hookup a cinch; no pinout diagram is required. It includes a separate 3.3 V supply for your devices, a high-side current meter, and programmable pull-up resistors for both I²C lines.

There are three I²C ports, so you can hook up multiple devices without any fuss.

I²CDriver comes with free (as in freedom) software to control it from:

  • a GUI
  • the command-line
  • C and C++ using a single source file
  • Python 2 and 3, using a module

Comes with an assembled and tested I2CDriver board plus some jumper cables. The VEML7700 Breakout shown in the demo not included – but you can pick one up here.

4267 quarter ORIG 2019 05


SPIDriver is an easy-to-use tool for controlling SPI devices and a great tool to help with quick driver development and debugging. It works with Windows, Mac, and Linux, and has a built-in color screen that shows a live logic-analyzer display of all SPI traffic. It uses a standard FTDI USB serial chip to talk to the PC, so no special drivers need to be installed. The board includes 3.3 and 5 V supplies with voltage and current monitoring. It’s kinda like a Bus Pirate with a display and great Python support.

4268 demo ORIG 2019 06

If you use SPI devices – LCD panels, flash memory, sensors, LEDs – you’ll know that the most frequently asked question is “what’s it doing now?” SPIDriver shows you what’s happening on the SPI bus in real time, so no more guessing about the bus state. It’s designed to make talking to SPI hardware a smooth, intuitive process. That’s good whether you’re a hardware debug wizard or are introducing a class to SPI for the first time.

The current and voltage monitoring let you catch electrical problems early. The included color coded wires make hookup a cinch; no pinout diagram required. It includes 3.3 and 5 V supplies for your device, plus a high-side current meter.

4268 kit ORIG 2019 05

SPIDriver comes with free (as in freedom) software to control it from:

  • a GUI
  • the command-line
  • C and C++ using a single source file
  • Python 2 and 3, using a module

Comes with an assembled and tested SPIDriver board plus some jumper cables. The 1.8″ TFT Breakout shown in the demo not included – but you can pick one up here.

4268 quarter ORIG 2019 05

In stock and shipping now!


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1 Comment

  1. It’d be cool if these had Linux kernel drivers!

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