Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [code]

154 questions
21
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3 answers

What is a Patty Code?

In my digital logic lecture today, my professor introduced a symbol code called Patty Code. I copied this table off the whiteboard: | Symbol | Binary | Odd Patty | Even Patty | |--------+--------+-----------+------------| | a | …
Winny
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4 answers

How to visually tell the difference between axial inductors and common resistors?

Is there a simple way to tell axial inductors and resistors apart in through-hole type PCBs? I do find the color code on both very confusing. Is there an obvious difference that I am missing? As a beginner, I might just be overlooking something very…
user40963
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What tools or standards can be used to improve embedded C code reliability?

I typically program PICs in C, usually for switched-mode converters. I've heard of various static analysis tools and standards like MISRA C that can be used to help improve the reliability of code. I'd like to know more. What standards or tools…
Stephen Collings
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8
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1 answer

What does a gold band in the third position on a resistor with 5th band being white mean?

Any idea how I am supposed to interpret this component? I would not have expected a gold in third position for a resistor with 5 colors. Edit: this other thread gives explanation as to how to interpret a gold in third position on a 5 band resistor,…
SkiNoU
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8
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3 answers

Why is the Gray code called a cyclic code?

I understand why it is called reflexive and a unit distance code. I don't see any cyclic pattern which is repeating in the code. Why is it called a cyclic code?
Ramesh
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4 answers

My first STM32 code - please criticize me

I have just wrote my first code on STM32 - blinking LED. It combines a fragments from different sources; please criticize me so I can learn how to write proper code and don't learn stupid habits. #include "stm32f30x.h" void…
Ekci
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7
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1 answer

Aiken code- any actual (recent) use?

A search for Aiken code (2-4-2-1 binary coded decimal) yields many web pages and a video with a lecturer claiming (in virtually identical language- this is from Wikipedia) (emphasis added): The code was developed by Howard Hathaway Aiken and is…
Spehro Pefhany
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7
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2 answers

Help understanding "unusually talked about" transistor code markings

I am a beginner trying to gain a better understanding of transistor codes. Before posting this, I searched the web looking for answers but I was unsuccessful. Please take a moment to look at the transistors picture below: Here are my…
T555
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6
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4 answers

How is digital data represented in analog waves?

This question is simply coming from an intrigued teenager, so if it has any flaws, I'm sorry for the inconvenience. To my knowledge, when digital data is transmitted wirelessly, it is first encoded into analog, whether it is Bluetooth, Wifi, etc, it…
Goatinator
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6
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1 answer

Identify unknown SMD component code A6530 72130

I have a TTL to RS485 driver board and I am try identify one of the manufacturer part number from the board. Can anyone identify the SMD Code and manufacturer part number of the following device? Code A6530 72130 dimension is 6.6mm x 4mm
Lok
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5
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1 answer

What component has the reference designator RY?

I found a component designated RY8015 which I don't recognize, shown on the photo below on an LCD TV PCB (the bulb-like part next to a green radial varistor). What is it called? What is its design function?
David
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4
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Noob questions about my accelerometer (ADXL345) and Arduino components in general

I've just bought this accelerometer: https://www.amazon.co.uk/XTVTX-ADXL345-Digital-Acceleration-Gravity/dp/B09NRFDH5J/ref=cm_cr_arp_d_pl_foot_top?ie=UTF8 I've bought it to learn about accelerometers and practise them with my Arduino Uno. I have a…
user270727
4
votes
4 answers

How is the code written in ARM7 compatible with ARM9?

I'm studying ARM families, In the above image, it is written that the code by supported ARM7 can be migrated to ARM9 and others. ARM7 uses the Von-Neumann architecture (single bus for data and instructions) and 3-stage pipeline (i.e., fetch, decode…
user105009
4
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3 answers

Looking for capacitance and voltage rating - How to read electrolytic SMD capacitor labels

I need to replace an SMD capacitor on a board. The printing on it says F1 560 2.5z I have googled intensely but have been unable to find information on how to read such a codes. I need to find out its capacitance and voltage. I think it could be…
geraldCelente
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4
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2 answers

What is a Barker Code?

I Googled this, but didn't find anything that could put it in layman's terms for me to understand. I know it has to do with signals/ pulse compression, but I am not grasping what exactly it is. If anyone could help, it would be appreciated.
Beom
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