I just wanted to share this fairly uninteresting result in case its useful to anyone.
I measured the current drawn from a 5V power supply on both a Raspberry Pi 2 (with Realtek WiFi dongle) and a Raspberry Pi 3 (with built in WiFi) to get an idea of the current consumption while these two boards booted up.
So, with no further ado, here are the results.
Rather as expected - much the same, both settling down to an 'idle current' of around 300mA, booting in under 30 seconds.
In answer to MrMobileWill, to take the readings, I used the following setup.
I sacrificed a micro USB lead, stripping the wires to get the black and red power wires. I then put my multimeter in current mode in series between my bench power supply (set to 5V) and the Raspberry Pi.
This multimeter has an RS232 serial interface that I connected to my Mac using a USB to serial interface (cheap off eBay).
The software setup is a little complicated. So See my next post for details on how I did this.
In answer to MrMobileWill, to take the readings, I used the following setup.
This multimeter has an RS232 serial interface that I connected to my Mac using a USB to serial interface (cheap off eBay).
The software setup is a little complicated. So See my next post for details on how I did this.
3 comments:
Hi,
What did you use to measure the current?
Hi,
I've added a description of how I took the measurements to the post. I've also made a separate post on using my model of multimeter with a Mac and Python. Which is what I used to take the readings that I could then paste into a spreadsheet.
https://afu.ac.ae/en/news/2015/information-and-education-activities-at-al-falah-university-etiquette-and-protocol
https://afu.ac.ae/en/news/2015/presentation-on-ranking-on-webometrics
https://afu.ac.ae/en/news/2015/lecture-about-new-in-the-world-of-cosmetics
https://afu.ac.ae/en/news/2015/lecture-about-1st-step-for-perfect-smile
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