All Questions
6 questions
1
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Advice on first PCB - doppler sonar project
I have designed a schematic for a PCB for a doppler sonar project. The plan is to use a RPi 3B+ for some basic signal processing, an arduino to produce a 40 kHz wave via PWM which is filtered to ...
- 67
0
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2
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214
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Measure if bottle level is empty
Consider an upside bottle with liquid (water) oozing out from pinhole on head. I need to detect if water falls below a certain level.
I searched and saw there are multiple sensors already available ...
0
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3
answers
236
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Why are the parts more expensive than a Pro Micro? [closed]
I have just started studying electronics and I am having a good time. In the past my experience would have been to use cheap boards, such as the Pro Micro.
What I find confusing is that parts, such as ...
-2
votes
1
answer
113
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A good way to get into Electronics with just 2 hours per week? [closed]
I want to get into electronics but I only have 2 hours per week to spend time-wise and my budget is low. What are some good projects? Perhaps I should spend my time doing C programming challenges ...
- 49
1
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2
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422
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Checking my understanding of how hobby servo motors operate?
Can someone tell me if my understanding is correct please.
The control signal to a hobby servo motor that is connected to an arduino operates by :
In every 1 s there are fifty windows each of length ...
2
votes
2
answers
2k
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Using an Arduino to Emulate a CD4021 Shift Register for Controlling an NES [duplicate]
This is probably a silly thing to do when I could wait for my CD4021s (74HC165Ns) to arrive and save myself the hassle but I feel as though this can be done and I'm simply missing something. I've ...
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