DevHeads IoT Integration Server

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DevHeads IoT Integration Server

The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.

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What is the application of tactile buttons?

What are tactile Button and how are they different from the other buttons or switch. In what applications are they usually used in electronics.
Solution:
This kind of buttons are also known as push buttons. When it's being pressed it closes the switch(circuit) and when released it opens it up. Which allows flow of current. It can be used in a boot or reset pin part for embedded devices....
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Understanding PCB Panelization and Its Impact on Cost

I was ordering a PCB from JLCPCB with a size of 8cm*4cm, 4 layers board. When I placed an order for 15 pieces it came out about $20. But when I increased the amount of PCB to 20 pieces, the board price increased drastically to about 40 dollars. When I ask they said it's pcb panelization. How does this affect the cost. @PCB & Analog
Solution:
In other terms : PCB panelization involves placing multiple PCB designs onto a single larger panel for manufacturing efficiency. When you increase the quantity from 15 to 20 pieces, it might exceed the maximum number of PCBs that can fit on a single panel efficiently, requiring an additional panel. This can result in higher manufacturing costs, thus increasing the price per board. Essentially, you're paying for the additional material and manufacturing process required for the extra panel(s)....

Any recommendations or solutions to isolate my PCB board

Good evening guys , I have a PCB inside a waterproof box outdoors, and it's happened twice in a few months that I've had a short circuit because of metal filings. Do you have any recommendations or solutions to isolate my board, add protection??...
Solution:
JLCPCB has an option to cover your PCB in a protective coating

help me choosing the right sensor of ligne following and color detection for my robot

Hello, can you help me choosing the right sensor of ligne following and color detection for my robot , there is two options TCS34725 vs AS7262 , i need to buy one what is the best option ...
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PCB Design for Test

When Designing your PCB board for Test. To actually get to confirm that the prototype is working. What are the technicalities do I need to consider. And what's the best way to create test points on the board. Are there any rule of thumb
Solution:
As a designer when doing your prototype design, you need to design it in a way its easy to test the voltage and the current flow in the circuit. Always put test points at various test power stage in the board. And also for basic protocols like I2C, SPI etc.

LiPo VS Li-ion batteries for Drones

Hi everyone, I want to ask you about lipo batteries and lithium battery what's the difference between them and wich one I use, for my flight, thank you

I bought some drone equipment what you think I'm missing

Guys I bought some drone equipment what you think I'm missing 😊
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Currently struggling with routing differential pairs for USB Type-C female connector

Currently struggling with routing differential pairs for USB Type-C female connector in my design, and it's proving to be quite challenging, especially with issues like length matching. Do you have any tips or strategies for effectively routing these pairs while ensuring signal integrity remains intact? Because the Type C has Two Set of differential pair, dont know what to do here.

How exactly does ESR influence electronic design

How exactly does ESR influence electronic design, especially in applications where power sensitivity is critical? And why do manufacturers often emphasize specific ESR values?
Solution:
ESR influences designs in many ways, and its found in capacitors especially electrolytic Caps. Using the right value of ESR as specified by the datasheet can save you lots of trouble. Higher Caps ESR value can generate heat because of the internal resistance in the capacitor. So when working with power sensitive systems it is good to use low ESR value for better outcome.

DevHeads Demo: How to Read A Datasheet

We get it. You're a pro. You don't need a refresher on how to organize and name your design files, where to find the best distributors, or how to read a data sheet... But in case you do, in this DevHeads Demo we're joined again by DevHeads resident hardware design expert Petr Dvorak, who explains what to look for in, how to find, and then how to read a good electronic component data sheet. It's a skill many of us take for granted until it's too late—which usually happens to be when you need part information the most. Join us for a brief overview that will help you—and hopefully manufacturers—make the most of your time when reviewing documentation....
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MLCC Capacitor Variants and Use Case

During component selection process in my designs, I normally see capacitors of different variant like X7R, X5R, and NP0 for MLCC caps. what sets these variants apart, and in what design conditions should they be used. And how do i know the right one to choose for my designs.
Solution:
The best ones C0G = +/-30PPM over a temperature range of -55 to +85°C The good ones X7R = +/-15% over a temperature range of -55 to+125°C The bad ones Z5U = +/-22%, 56% over a range of +10 to+85°C...
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I'm working on a robotics project and need to select a suitable motor driver for DC motors.

do you have any recommendations for this type of application?
Solution:
Yes, PWM is the control mode for DRV8234.

Ultrasonic sensor

Hi!! Does anyone know a better ultrasonic sensor other than the HC-SR05 or its similars, I want one more efficient like used in cars
Solution:
I am surprised to not find many. Potential to start a business manufacturing better ones. check this alternative - https://maxbotix.com/products/mb1230...

I want start my journey in Electronics

Hello, I want start my journey in electronics but I only have little knowledge in it, like solving k-maps, I want to learn more.. but I don't know how to started it nicely. Can anyone provide me guidance!? thankyou...
Solution:
The first course is about electronics fundamentals the theoretical and practical aspect. In the second you learn about basics of PCB. And the third you learn how to design a full fledge board. From idea to production

Overview of Electronics SPICE Simulation Software

I'm looking to run some simulations on the power section of my electronics design, and I'm wondering what SPICE simulation software options are out there. Could you give me a rundown of some popular choices and how they can be utilized for different analysis purposes?
Solution:
I have been using LTspice since long for analog electronics simulations. For power design I used tool from power integration. But it’s restricted to their products only.

𝐑𝐞𝐟𝐥𝐨𝐰 𝐬𝐨𝐥𝐝𝐞𝐫𝐢𝐧𝐠 𝐩𝐫𝐨𝐜𝐞𝐬𝐬 𝐦𝐢𝐧𝐢 𝐠𝐮𝐢𝐝𝐞

I want to tell more about the process of solder paste printing. The reflow soldering process naturally contains more steps than the solder paste printing. Regarding the sensitivity to failures, the solder paste printing drives the entire job. The fine component pitch requires "finer" solder paste types. The word finer means finer solder paste powder distribution. In other words, the solder paste particles are smaller and homogeneously distributed. The solder paste temperature when printing must be your concern as well. Too-liquid solder paste does not keep its shape, while too-thick solder paste does not enter the stencil openings. The other trap is that the optimal temperature window for the solder paste printing is relatively narrow. It means you must cool down the paste after a few print runs....
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Selecting Antenna Connector Types for RF Circuit Boards

I'm working on an RF circuit board design and I'm a bit stumped on which antenna connector type would be best suited for it. I need something compact yet efficient in terms of signal quality. Could you recommend some options and provide insights into their pros and cons?
Solution:
You can check here they have embedded antenna https://www.johansontechnology.com/antennas
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Best Practices for Differential Pair Signal Transitioning

I'm in the midst of transitioning a differential pair between layers on my PCB design, and I want to make sure I'm following the best practices to maintain signal integrity. Could you share some industry insights on how to do this effectively, considering factors like via placement and impedance matching?
Solution:
Considering a dielectric constant of about 4, the signal propagation speed is about 150.000.000 m/s. The cycle of your clock is 5 ns. The distance the signal travels during a single clock cycle is 150.000.000 m/s x 5 ns = 750 mm. If your transmission channel is shorter than 30 mm, I recommend focusing on other things than this transmission channel.

What is Load Capacitance of A Crystal

When Designing circuits and while reading the datasheet of crystals, it usually talks about load Capacitance. Please help me to understand the function of load Capacitance and how it affects the oscillating circuit in my design. Usually it's rated in pico farads. What happens to the crystal if a load Capacitor is not added.
Solution:
load capacitors are not optional component; they are a fundamental part of the crystal oscillator design.
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Zero Ohms resistor on the Power Line

Am designing a PCB Board, in the schematics section at the power line, I added a Zero ohms resistor to VBUS power rail for cleaner power. Is adding this value of resistor a good practice at the power rail of a design, is there any tendency of the circuit not functioning as required?
Solution:
I place 0R resistors not for the sake of cleaner power but for the sake of the ability to separate circuits when debugging. I believe this is the common motivation for many engineers. Yes, it's a good practice to place 0R resistors into circuits. Especially: • At power supply inputs. • At power supply outputs....
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