It’s essentially the same picture as before, because the sawtooth is a straight line, and so voltage rise is the same thing as time in this case. This type of analysis can also be done using the X-Y mode on most oscilloscopes: Note that this power consumption can’t be reduced: we don’t have the ability to send any commands to the RFM12B until it has started up! As you can see, the current draw quickly rises between 1 and 2V, and then continues to increase sort of linearly. The magenta trace is the current consumption, which turns out to be 0.650 ♚. The yellow trace is VCC, the supply voltage – from 0.3V. This will have a slight effect on measurement accuracy – but no more than 2%, so I’m ok with it. So the idea is to apply a sawtooth signal to the RFM12B, rising from 0 to 3V at the rate of say 10 Hz, and to measure the voltage drop across a 100 Ω resistor at the same time. Well, time for a test using the power booster described recently: Supported OS: Windows 11, Windows 10, Windows 8.For quite some time, I’ve wanted to know just how much current the RFM12B module draws on power-up.Technical Details and System Requirements You should have a ready-to-run bootable USB Flash Drive with your select Linux version installed upon completion. Other features include Persistence (if available) and the ability to fat32 format the flash drive (recommended) to ensure a clean install. Choose a Live Linux Distribution, the ISO file, your Flash Drive, and, Click Install. It is a Live Linux USB Creator that allows you to choose from a selection of Linux Distributions to put on your USB Flash Drive. Free Download Universal USB Installer latest version standalone offline installer for Windows.
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