Questions tagged [microelectronics]

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Nemeus XM001 / MM002 booting error

This is my first question on this forum, In the case of a project I use the beaglebone black (BBB) as motherboard and a LoRa Nemeus XM001 module, this last one integrates the Nemeus MM002 module. The ...
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2answers
161 views

What is theoretical (physical) limit a MicroSD card's capacity?

There was time (a decade ago) when I got 8 MB (yes, 8 MB, not 8 GB) SD card for my Nokia ...
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1answer
143 views

Arduino DAC to Speaker

I'm working with an Arduino Due's two DAC pins. I want to output to a single 4W 5.7Ohm speaker to test my code, with the intent of eventually outputting to a set of speakers (woofer, mid-range, and ...
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0answers
17 views

How to establish good ohmic contacts between Gold electrodes and Germanium Hall bar?

I am trying to get good ohmic contacts at low temperatures (4K) for a SiGe/Ge/SiGe quantum well Hall bar and so far this has been very challenging to me. The electrodes are made with Gold and these ...
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1answer
52 views

How to connect Arduino to brushless motor through only 1 digital pin

I know how to connect motor to Arduino with 3 wires: 5v, digital pin and ground. As I know only digital wire need to control "speed control" of my motor. So, if my Arduino connected to computer and it ...
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2answers
60 views

Electronic component datasheet handling

What is $V_{IH}$ and $V_{IL}$ in datasheets? I found High-level input voltage and Low-level input voltage on the datasheet?
2
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1answer
121 views

How to drive 12V servo motors using 5V PWM or 3.3V PWM using ARM MCU?

I have to drive several 12V servo motors. So I wanna to get 12V PWM Controller (12V Logic Controller). I have MCU as Atmel SAM3X8E arduino due board. It has 5V PWM outs. Is there any Controller IC ...
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1answer
70 views

Controller vs Micro controller?

What is the difference between both of these terms? Especially in configuration and application?
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2answers
244 views

What kind of mechanism can be used to rotate a part in 180 degrees (Ψ (yaw)) and 30degrees in 𝜃 (pitch) direction?

Let's say we have a flat object. We are asked to create some mechanism so that the part can rotate in the shown angles above. What mechanisms can be used?
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1answer
78 views

Hover Stylus for capacitive touchscreen

Capacitive touchscreens do not rely on touch as the name suggests but rather measure the distortion of the electrostatic field. To my understanding a touchscreen might be able depending on the build ...
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0answers
32 views

Name of protocol used to communicate with Fuelling Station Dispensors

I am trying to figure out the actual (Range of ) communication protocols used to communicate with Fuel Dispensers at fuel retail outlets. I see them write 2-wire protocol which is not specific as ...
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0answers
38 views

How do I make sure I don't damage electrical components (L293D, RaspberryPi, & DC Motors)?

I have a RaspberryPi that will control 4 DC motors. I will be using 2 L293d ICs. The 2 ICs will be powered by a 24v 5A Power Adapter. Question: What other components do I need? I imagine I would ...
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1answer
40 views

How to use consumer electronics for industrial application on high temperature

I need to measure the width of a bar made out of glowing red steel (900-1200 degrees Celsius) using computer vision. In order to ensure resolution of a 0.5 millimeters/px, the camera is needed to ...
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1answer
595 views

Making my microcontroller transmit audio to any bluetooth headphones/speakers

I am creating a microcontroller on a custom PCB design for an MP3 player. I would like to consider integrating bluetooth into it. When I say integrating bluetooth into it, I specifically mean ...
2
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3answers
80 views

Why resolution of photolithography evolved gradually?

Moore's law states that no of transistors on a given area doubles every 18 months. Electronic components are typically made by photolithography. So, Moores law basically limits the resolution of ...
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1answer
43 views

RTC interface with PIC16F877A

I am newbie to embedded programming. My problem is I can write and read data to ds1307(by saying using I2C debugger). But my received data on LCD showing 0xE1 constantly for every changing second. Is ...
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1answer
74 views

Can different analog and mixed signal devices be combined on a single chip

Say I want N-ADCs, M-amplifiers, K-filters, and why not, an oscillator too. Is there a platform to combine whatever device i need, and that this platform is implemented on a single chip? I know an ...
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3answers
5k views

Effect of magnetic field on electronic components

Are electronic components like diodes,transistors, micro-controllers, microprocessors, wireless transceivers etc are damaged by strong static or dynamic magnetic fields? If yes, at what strength the ...