You should use something in the range of 0.01 ohm or something like that. At 40A the 0.01 ohm still has 0.4V over it ! This is still a 3% voltage drop for your motor so your motor will perform 3% less ! Simple and dirty way to do this, use the wires from the battery to the servo as a shunt. You onl...

Shunt resistor or current probe are the options. If using a resistor put this in the ground return path and you can use one channel of the scope and scaling the reading. Thanks Martyn! Can you please suggest a concrete type of resistor? I don't know what kind of resistor to buy. So that it will be ...

Hi! I've read that one can use a "shunt" resistor to measure current using an oscilloscope (using a regular probe). I don't have access to current probe (and I'm using Picoscope 2204A). I'd like to measure current on my hobby quadcopter. It is powered by a 12V battery and current should not exceed 4...

2. If you look carefully at the trace you will see it has gone above the 10V range, therefore the measurement for that buffer is not possible. That's a shame. Even though it goes off-scale, I would expect the measurment (maximum, in this case) to measure the maximum, which is 10V). Is there a speci...

Nearly, but it is related to the vertical ranges you can select, 0 to 1.5V is not a settable vertical range for the device. Yes, I found that out yesterday, while trying to figure out why I can't set the range from 0 to 50V :) It makes sense now. I also saw that oversampling (resolution enhancement...

Martyn wrote:Thank you for the feedback, we will be continuing to develop our Mac and Linux Beta versions over the coming months, so look out for new updates.

Will do that, thanks!

So, I've been working with the Pico now, measuring stuff. I have a few questions: 1) The box says +- 20Vpk max - I assume this means I must not deliver more than + or - 20V to the input channel, unless I'm using n-X probe, which drops the voltage for me. I'm just wondering, what happens in practice,...

According to https://www.picotech.com/oscilloscope/2200/picoscope-2200-specifications the 2204A s a 8 bit scope. In your image the scope is set to +/- 2V So 4V / 256 is about 15 mV per bit. Thanks! So, if I understand this correctly, if I were to define the range from 0 do 1.5V, for example, I woul...

Hi! Just received my Picoscope 2204A with probes today. I did a probe compensation and I'm wondering if this is OK? I mean, there is 19 mV spikes present -- is this normal? 19mV seems a lot to me... or are the supplied probes that inaccurate? To see what I mean, have a look at the image, where I tri...

Hi! I'm new to Picoscope and oscilloscopes in general. I installed Picoscope 6 beta on Windows 8.1 first, then saw that there is a Mac version as well. Since I'm primarily a Mac user (running Windows in vmware), I tried the software, but it is nigh impossible to use: * hard to click on stuff (close ...