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aymen ammari

5/9/2024

What techniques can I employ to ensure thermal management and proper heat dissipation in my PCB layo

Hello everyone, I have a problem... despite implementing thermal vias and heat sinks, inadequate thermal management in the PCB layout caused components to exceed their temperature ratings, leading to premature failure and reliability issues. What techniques can I employ to ensure thermal management and proper heat dissipation in my PCB layout, particularly for components prone to overheating?

Solution:

Increase your trace spacing so it can accumulate enough current. You can also add copper pour on your PCB and create some polygons, these also helps in heat management. Add the right amount of vias also. ...

Daniel kalu

5/9/2024

I’m eager to venture into electronic hardware design.

Hey guys so i’m eager to venture into electronic hardware design. Could someone please give me the essential steps for me to learn electronic design It would be incredibly helpful if someone could provide a thorough roadmap to guide me through the process.

Solution:

@Daniel kalu this courses will be good for a start https://www.udemy.com/course/crash-course-electronics-and-pcb-design/?kw=Electronics&src=sac&couponCode=LEADERSALE24A...

Okpara Elvis

5/6/2024

Best Accelerometer Module for Speed and Tilt Measurement Project?

I am working on a project that will measure and calculate the speed of a moving object and tilt angle which accelerometer module will be suitable for this project @PCB & Analog @MCU, MPU & Firmware...

Solution:

I suppose it would depend to some extent on your accuracy requirements. The MPU6050 was mentioned, in its defense I suspect there are more examples etc for it than just about anything else, so that might be a vote for choosing it. Also, they're not too expensive (though not certain how they stack up to others. Depending on the situation, you might check out the XIAO nRF2840 board. Tiny and has an MCU built-in. I did a writeup on it here: https://embeddedcomputing.com/technology/open-source/development-kits/seeed-studio-xiao-nrf52840-sense-big-capabilities-in-a-small-package though haven't really used it since then....

wafa_athmani

5/6/2024

What is the difference between the two transistors referred to!!

Hello, What is the difference between the two transistors referred to!! What does the letter B and C mean??

Solution:

The B version has a DC current gain of 200, while the C version has a current gain of 420. Here there differences are listed. https://www.findchips.com/compare/bc547b--vs--bc547c...

Malek Lamraoui

5/6/2024

Help Getting Started with KiCad PCB Design

hello i am currently learning KiCad for pcb design and i would like to work on problems with other designers to acquire more knowledge and be more careful on the small mistakes that can happen

Joji

5/5/2024

I want to learn about hardware design. Where should I start?

I'm newbie to hardware

𝚑𝚎𝚛

5/2/2024

How to Build a Database for a Phobia Detector Using Heart Rate Sensors, Accelerometers, and VR Heads

Hello everyone i would like to ask you something. Me and my team are trying to build a phobia detector and these are the tools we using: - heart rate sensor - accelerometers (for trembling) - VR headset for simulations Yet we don't know how to build the database for it, something to record the reaction instantly. ...

wafa_athmani

5/2/2024

What is the difference between the two transistors referred to!!

Hello, What is the difference between the two transistors referred to!! What does the letter B and C mean??

wafa_athmani

5/2/2024

How to Optimize Control Pins for Basic Movement Functions in a Robot Using L298N Dual H-Bridge?

Hello.I have a simple robot with two DC motors. Using the L298N Dual H-Bridge, what's the minimum number of control pins I can use to give me forward, back and turn? If I tied Ven high and relied on the "C=D Fast Motor Stop" when idle would this be bad?...

Solution:

Hello. In my opinion, you need all 6 inputs. You could go with 5, when connecting both EN inputs. You need the fast motor stop option. This means that both C and D cannot be controlled only inversely, but you need the possibility to drive them at the same logical level.

aymen ammari

4/30/2024

Trying to build a robot with hoverboards brushless motor. any idea about their size, voltage...?

Hi everyone, I'm back 😊... So.... I'm trying to build a robot with hover board brushless motor, and I will buy an old hoverboard to get its brushless motors, any idea about their size, working voltage, power consumption any idea about what the robot can do.. I'm all ears

Chimmuanya Okere

4/29/2024

Between the linear and switching voltage regulator. Which is more efficient

Between the linear and switching voltage regulator. Which is more efficient. And in what application can we use both. If you can drop their major differences I'd appreciate. Thanks. @PCB & Analog

Camila_99$$

4/29/2024

Can the analog input port of the Arduino Uno support a negative voltage from -5Vdc to 0Vdc?

Hello everyone, a question intrigues me: can the analog input port of the Arduino Uno (atmega 328p) support a negative voltage from -5Vdc to 0Vdc? The issue: I have installed a TIdc (battery charge current sensor) which normally provides 0 to 5Vdc. But when the battery is not charging and is supplying power, the TI returns a negative voltage from 0 to -5Vdc. Current is in the tens of milliamps range. I have tried using various types of diodes to block this negative voltage, but all the diodes significantly affect the voltage delivered by the TI, resulting in a total loss of accuracy in reading the charge current....

Petr Dvořák

4/26/2024

✨𝐊𝐢𝐂𝐀𝐃 𝐌𝐚𝐬𝐭𝐞𝐫𝐂𝐥𝐚𝐬𝐬 – 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀

✨𝐊𝐢𝐂𝐀𝐃 𝐌𝐚𝐬𝐭𝐞𝐫𝐂𝐥𝐚𝐬𝐬 – 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀, part 2 You need to use 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀 to make your customers happy. In part 1, we learned how to create empty 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀 that will contain:...

techielew

4/25/2024

Ask a Developer Demo: How to Implement a Sensor Interface on FPGAs

Starting out with FPGAs is daunting. And that's just the fundamental concepts of hardware description languages (HDLs). What about when you're tasked with using an FPGA for what it was designed for? Something like creating a hardware interface in FPGA fabric where one didn't exist before? With great power comes great responsibility, and DevHeads resident computing expert @Navadeep has the power of knowledge on his side when it comes to FPGA development. In this Ask a Developer Demo, he defines, maps, and implements an IMU sensor interface in the fabric of an AMD Zynq 7000 SoC. Using the SPI protocol, IMU data is transmitted to a C program that post-processes the data. Let's see if he can do it in less than five minutes (hint: he can)....

Chimmuanya Okere

4/24/2024

Placing of a decoupling capacitor at the top of your PCB with the MCU or at the bottom.

Which is more better and why, placing of a decoupling capacitor at the top of your PCB with the MCU or at the bottom. @PCB & Analog

Solution:

Place your your cap as close as possible. If it fits at the top or bottom fine. But let it not be far from each other.

aymen ammari

4/24/2024

Can anyone provide me with a code for 2 servo motor with esp32

Solution:

This? https://github.com/RoboticsBrno/ServoESP32

aymen ammari

4/24/2024

Can you provide detailed information about ultrasonic sensor HC-SR05 maximum detection range?

@boualleg sabrina I'm considering using an ultrasonic sensor HC-SR05 for distance measurements. I'm using it for water lever project, Can you provide detailed information about its maximum detection range and any factors that might influence its accuracy over distance?

Solution:

Yes it gets affected by water. It bounces back if it hits any liquid

JeremyCook

4/24/2024

Why you should consider .8mm PCBs over 1.6mm PCBs?

Hello, I'm working on an article about why you should consider .8mm PCBs over 1.6mm PCBs (mostly in the context of 2-layer boards). Anything I should mention? I'm not advocating that in all cases over 1.6mm thickness, but seems like something that beginners especially wouldn't even consider I think the most obvious factors are weight, volume, and cost, but I know captive issues come into play as well. Any insight/references on capacitance that I should look at? Also I saw some mention of how it affects solder joint fatigue, would welcome your thoughts on that too!...

Malek Lamraoui

4/21/2024

Need help and resources learning KiCad for PCB design

hello i am currently learning KiCad for pcb design and i would like to work on problems with other designers to acquire more knowledge and be more careful on the small mistakes that can happen

aymen ammari

4/20/2024

ESP32 code for a two servo motor?

Can anyone provide me with a code for 2 servo motor with esp32

Solution:

This? https://github.com/RoboticsBrno/ServoESP32

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DevHeads IoT Integration Server

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

DevHeads IoT Integration Server

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