Get your Power Profiler Kit II up and running
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- Опубліковано 30 жов 2024
- The Power Profiler Kit II is an easy to use tool for power profiling all Nordic DKs, including the nRF9160 DK, in addition to custom HW. It can be used throughout all stages of the engineering process to speed up development of ultra low-power short range and cellular IoT applications.
Product Page: bit.ly/39xWyYQ
User Guide: bit.ly/2Vn97hv
No kidding. This tool is a must have on an embedded developer's desk.
This is good ! Simple to use but clever piece of tool for developing battery powered embedded solution
Great to hear! Thanks for the feedback.
Beautiful, this is exactly what I'm looking for and relatively at affordable price. Also it would be very nice if one of the IO pin can be configured as serial port, only RX pin will be enough. It will make the the measurement correlation even easier with readable text from serial along with the IO 0/1 state.
Hi Adam, that's a great suggestion. We've forwarded it to the team and they will have a look at it. Thank you.
Excellent device! Simple to use, extremely convenient for electronic product design... I just bought one.
Great to hear! Thanks for your feedback.
how come there is no recording / information about the instant voltage and energy (e. g. kWh)?
I assume that the power supply does not provide a perfectly stable voltage (eg when under heavy load), hence this will affect power consumption, no?
And how to interpret the charge information?
Charge measures the total amount of electric charge passing through your circuit (Q = I*t). We cannot accurately measure the energy as like you say, the voltage is often fluctuating, but the charge measurement which is less dependent on voltage can still help you calculate how fast a battery will be depleted when you know it's capacity rating. The PPK2 is first and foremost a tool to let developers inspect the current consumption to fine tune sleep modes, peripheral usage etc, but we will report your query back to the developer team.
This is a really nice tool, congrats to Nordic team! We've been developing a nRF5340 product since early engineering samples, and will be happy to use this. One question: does anyone here know what software suite was used to develop the graphic analysis tool? I'm tempted to guess Qt, but the speed at which the 100kps data set flows on screen is a bit too good for what I’ve seen on that platform.
They have public repository for the software: github.com/NordicSemiconductor/pc-nrfconnect-ppk
It's JavaScript run in Electron (using Node.js)
As @WisseSpring already wrote, we are using Electron and more concrete for the charts we are using Chart.js. www.chartjs.org But, yes, it is a lot of data to process, so we spend quite some effort to optimise handling that data to make the UI more responsive.
@@WisseSpring nice I’ll check out that repo, cool they publish this! Better and better
Amazing product. I absolutely love my unit. Really helps me a lot. Thank you!!
Great to hear! Thanks for your feedback.
I have a question. Basically I would let PPK2 run for couple of minutes with a DUT connected to it. PPK2 provides 5V and DUT consumes about 60 mA. The results that I am receiving is in "REAL-TIME" window, however, after few minutes the application tends to freeze even though the power is still being delivered. I wonder if there is something that I should look out for in order to prevent this behavior? I could run more tests on different USB ports, different USB cable, even consider adding an additional one for more power (even though DUT only consumes 300 mW).
Please reach out to our tech support team on DevZone with all the details of what you are experience and they will be able to help you: devzone.nordicsemi.com
When using as an ammeter mode, am I correct to assume it would act as a multimeter/current meter? Where I could measure the inline current of a wire at any point of the circuit as long as the wires will be connected in series in Vin / Vout of the PPK2? I plan to measure and test a few signal currents coming in / out of an IC.
Yes, it acts as an amperemeter (current meter) in ampmeter mode, and you can indeed plug it in series of the circuit you're measuring.
@@NordicSemi But do I still need to connect the ground pin of the PPK2? Unlike the traditional multimeter that is floating when measuring inline currents.
I wonder what would happen if I left both the ground pins (left pin of Vin and right pin of Vout) not connected to anything?
Something like this: Opamp output pin -- PPK2 Vin (ammeter mode) -- ESP32 ADC pin, to measure the incoming current to esp32.
@@losaminos59 This will still work, but your measurements will loose some accuracy due to the fact that the PPK2 does not work exactly like a multimeter.
I have a question. Can i measure current consumption of 12v device? Im designing a product with 12v and buck converter i want to see how good my buck. I don't want to damage my unit so i have to ask before proceed
We do not want you to damage your unit, so good you asked. The supported device under test (DUT) voltage for the PPK2 ranges from 0.8V to 5.0V. So no, you can not measure a 12V device. You can see the user guide for more details: infocenter.nordicsemi.com/topic/ug_ppk/UG/ppk/PPK_user_guide_Quick_start.html?cp=10_10_3
@@NordicSemi ah thanks a million 🙏
i have selected the ppk2 in the Power Profiler app, but it stills shows "instructions" and doesn't show any other buttons to do anything with the device.
edit: I rebooted my computer and now they show up. (running Linux by the way, ofcourse I did install the udev rules)
Glad to hear it worked. We will forward your issue to our team so they can investigate if it is a recurring issue. Thanks for sharing.
@@NordicSemi Well actually It was something else that was causing the problems, namely in this case Arduino Grabbing the port so that the Power Profiler software got no chance to connect, it was very confusing and annoying but both were looking for /dev/ttyACM0
@@duality4y okay. Thanks for the update.
Hello,
is it possible to connect PPK2 to other devices that are not From Nordic?
Yes, it is a standalone unit for power profiling and power optimization of embedded solutions. Power profiling and power optimization of embedded solutions. For more info: nordicsemi.com/ppk2
Does this tool will work with another (other than nRF) DK ?
Yes, the Power Profiler Kit II (PPK2) is a standalone unit, which can measure and optionally supply currents all the way from sub-uA and as high as 1A on all Nordic DKs, in addition to external hardware.