Newest Questions
209,737 questions
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Servo moves only in one direction
I'm trying to control a FS5106B High Torque Servo using an ATmega328P. I want to move it to min and mid positions both ways (i.e., min -> mid when button connected to pin 2 is pressed and mid -> ...
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LTSpice human-readable netlist and dot-plt file
I'm running LTSpice 17.2.4 on MacOS. I'm quite certain that in the past (probably with older versions), there was a human-readable (ordinary ascii) netlist, in the dot-net file, and that also the ...
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In Altium how do you choose which side of the bend line moves on a flex cable?
I am trying to model a flex cable to fit inside a step file from the mechanical engineers. When I press 5 to execute the bends, I find that the wrong side of the bend line moves. i.e. I want the part ...
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1
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STM32 USB Connection
I made a custom STM32 board. The board uses a STM32F103C8T6 microcontroller. The USB connection doesn't work. The computer says that the device is unrecognizable and spits out and error 43.
I've added ...
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Measuring “cooking event” on Induction Range with Resistive Oven
I’m looking to detect cooking activity on a range that has both induction burners using PWM, and resistive heaters in the oven. The basic function is to turn on a fan when there’s a cooking event on ...
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Having trouble understanding current polarity
Taken from Problem 3.6-10 in Svoboda and Dorf's Introduction to Circuits, 9th Ed.
I am asked to solve for the value of \$i_b\$ in the below circuit:
I redrew the circuit in accordance with the ...
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2
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50
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Which phototransistor should I use in place of this one?
I'm trying to recreate this project here: https://github.com/LrFranca/DIYcolorsensor
It's a really cool color sensor.
Here's how it works:
Sequentially pulses RGB LEDs
Measures reflected light with ...
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High-Speed Angular Position Sensing at 6000°/s Without Using Hall or Optical Encoders and with off-center mounting
I'm looking for a compact sensor solution to measure relative angular position for a rotating system under the following constraints:
High-speed rotation: The system may rotate at speeds up to 1000 ...
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3
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45
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Subtractor circuit issue on LTSpice: what's wrong?
I just tested a few stuff since my last question, and I think this question will clear the doubts even more.
I have formed a basic circuit implementing the adder and subtractor in LTSpice.
So what am ...
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The issue of making a voltage divider circuit more precise
This is the divider using log amp, anti-log amp and differential amp, the final output is Vz=c*(Vx/Vy), where c is constant. It undergoes these components: log amp U1&U2, differential amp U3, ...
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Subtractor circuit is not subtracting voltages
So, the picture shows a part of my complete circuit which implements signal transmission using chaos generated by a Chua diode. This is the subtractor part, which is not subtracting the voltages being ...
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47
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Secure Firmware Updates on constrained IoT devices/ Microcontroller
I am currently trying to find out how secure firmware updates are done on microcontrollers nowadays.
Many authors refer to SUIT (Secure Updates for Internet of Things) in their papers.
Most ...
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28
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Fixing reverse-polarity short-circuit in device that takes USB and/or PSU power?
I use P-MOSFETs for reverse polarity protection on the power supply's input lines. It works perfectly.
But I also allow the use of a USB port (5V) as a power source, which can be connected at the same ...
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59
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Flicker and Noise Floor
https://www.ti.com/lit/an/sbaa661/sbaa661.pdf?ts=1745596081730&ref_url=https%253A%252F%252Fwww.google.com%252F
This document talks about the impact of slew rate of reference source on PLL. Few ...
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Which kind of this IC marking A320 and B543?
I would like to know what kind of this IC the following is:
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