Years ago we were building inexpensive pic microcontroller based multimeter into probe size cases. It all started with the mondo superprobe. The original project has been updated or enhanced by a few people. It would make an interesting build.
Internet tradition demands that some smart-ass replies: "you could have done that with a 555". In this case I'll be the smart-ass who says "you could have done that with PIO" 😂 Great vid. Absolute perfect pacing and explanation.
Just a suggestion: It’s easier than you think to learn to read lips to an extent, and it really helps when getting used to unfamiliar accents. It’s also useful when working in noisy environments.
Wonderful. In the days before microcontrollers, we'd have to salvage an analog needle-style voltmeter, and read the averaged voltage, working backwards to find duty cycle and then capacitance. If you use larger resistors for charge/discharge you can get somewhat better resolution for smaller capacitors.
Right! using larger resistor definitely pushes the lower side of measurement range if the bottleneck is only frequency measurable by microcontroller. But it would not matter if the parasitic capacitance at the port is comparable to the cap to be measured.
The project is great. However, it is worth mentioning that contrary to what was claimed, capacitance meters are not expensive at all. In fact, for less than $10 one can buy a transistor tester that also measures capacitance and other important characteristics of capacitors alongside with many other things, such as inductance, resistance, etc.
just a crazy idea.. but if you make the resistors larger, would it be actually possible to use it to measure utp cable length by measuring the capacitance and then translating that to length using a bit of math?
Honestly I would've never thought about using the frequency generated by a 555 to calculate a capacitor value, great work!
Years ago we were building inexpensive pic microcontroller based multimeter into probe size cases. It all started with the mondo superprobe. The original project has been updated or enhanced by a few people. It would make an interesting build.
Simple, inexpensive, and very useful. I am definitely going to make one of these.
Great video, thanks. I didn't know this was possible with components already own.
Internet tradition demands that some smart-ass replies: "you could have done that with a 555". In this case I'll be the smart-ass who says "you could have done that with PIO" 😂
Great vid. Absolute perfect pacing and explanation.
Great video, Thanks! This is quite handy, I should build one for myself.
thanks for the video
I have trouble listening when you speak so fast, but I admire your knowledge. ❤thanks for Your Tutorial
Just a suggestion: It’s easier than you think to learn to read lips to an extent, and it really helps when getting used to unfamiliar accents. It’s also useful when working in noisy environments.
I watch videos with the closed captioning / subtitles on, and they are very accurate for this video. Maybe that would help.
Thank you for your kind advice, I'll try it out.
THANK YOU
Wonderful. In the days before microcontrollers, we'd have to salvage an analog needle-style voltmeter, and read the averaged voltage, working backwards to find duty cycle and then capacitance. If you use larger resistors for charge/discharge you can get somewhat better resolution for smaller capacitors.
Right! using larger resistor definitely pushes the lower side of measurement range if the bottleneck is only frequency measurable by microcontroller. But it would not matter if the parasitic capacitance at the port is comparable to the cap to be measured.
indeed. I tried it. both R=1M for pF, 100k for nF and 1k for uf caps.
Your comment is Best, advisory , how to measure 2.2 pf smd ?
Superb video. Thank you
Really helpful 🤝🤝 looking forward for more
Great. How about modifying it to show micro-volt leakage through capacitor - especially useful for people who restore vintage radios.
Nice idea 💡
The project is great. However, it is worth mentioning that contrary to what was claimed, capacitance meters are not expensive at all. In fact, for less than $10 one can buy a transistor tester that also measures capacitance and other important characteristics of capacitors alongside with many other things, such as inductance, resistance, etc.
Excellent video, thank you!
Nice. Thank you ☺
just a crazy idea.. but if you make the resistors larger, would it be actually possible to use it to measure utp cable length by measuring the capacitance and then translating that to length using a bit of math?
I like the way you explain things... Wish to see you more often here...
Thanks for this video, could you please show us how to measure inductance using microcontroller
Maybe next time 👍
Very cool. I think I've used all the modern microcontrollers except the Pico even though I have some.
What a smart idea! Thanks, I'll be using this.
good one!
Excellent video, thank you mame.
Great stuff. What is the maximum frequency can the system measure? What is the minimum value of capacitance it can capture?
Thanks for sharing
I love it good
You should be a Major Spokeswoman for this channel! Excellence. Great video!
can we use audrino uno?
you forgot to mention you needed a Pi pico plus a display and eventually a 555 timer ...
❤️❤️
wow I gave up once I saw the programming console but WOW ! great work!!
This is where the AI-powered speech recognition and enhancement software comes in handy.
Audio seems to be fine for me.
Can it measure 2.2 pf 💃💃💃😁😁 , making pcb and adding other stuff costs more than readymade commercial meter 💃💃💃😁😁😁😁
Beautiful girl