DevHeads IoT Integration Server

DII

DevHeads IoT Integration Server

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

Join

seeking-collabs

🪲-firmware-and-baremetal

📦-middleware-and-os

📡-edge-networking

🟩-pcb-and-analog

jobs

☁-iot-cloud

✅-code-review

devheads-feed

general-dev-chat

LED Strip WS2812B Issue with Arduino MEGA

Hi all, I have an Arduino Mega, and I want to make a 2812B LED strip work. Right now, I'm just trying to figure out if my strip is functioning correctly. I simply want to display a solid color, for example, "green," on my LED strip. I've placed the program below to display 300 LEDs in green on pin 2 of the Arduino. What happens is that with each program upload, around ten LEDs always display in white at the beginning of the strip, and the rest of the LEDs in green. Afterward, if I re-upload the same identical program, the LEDs turn red or some other color, and this happens every time I re-upload. Sometimes, random colors appear as well....

DEVHEADS WEEKLY OFFICE HOURS: 12/22/20223

Hi all, I hope you're all either already or getting ready to take some well deserved time off! We want to thank you for being part of the DevHeads Community and are excited for the agenda for our penultimate Office Hours meetup of the year, which will take place tomorrow (Friday, 12/22) at 15:00 GMT. The topic is going to be "IoT device optimization: Pre and post-deployment". I'm looking forward to hearing from experts like @Umesh Lokhande who have worked on commercial IoT devices and understand the considerations that must be taken into account before shipping, and the experience of others dealing with devices once they're deployed. ...

Implementing a "piezo" energy harvesting for a wearable device

Dear @pallavaggarwal , I was asked for implementing a "piezo" energy harvesting for a wearable device. Can you please give me a clue about such "piezo" energy harvesters?

Arduino Opta Lite Getting Started with PLC IDE

Hello, Got an Arduino Opta Lite PLC/programmable relay. It's a neat form-factor, but doesn't look to me like it will replace a traditional PLC. Anyyyway, I've been trying to use the Arduino PLC IDE for ladder logic programming, and got a DFU error (after seemingly resolving another error) on an old Windows 10 Pro machine. Perhaps I need to use the boot button before downloading? Seems like info is scarce on this hardware package and I'm not impressed with the software either....
No description

Network Configuration of a Raspberry Pi in LAN and WAN

Hi All! I would like to configure my Raspberry Pi in such a way that: 1. It is accessible (ping, etc.) by a machine B directly connected via Ethernet (local network but without going through a switch/router and without having to modify the configuration of machine B)....
No description

Receiving information via Bluetooth and transmitting it on low-frequency radio waves.

Hi All, I have a question. Is it possible to have a microcontroller (MCU) that receives data via Bluetooth and then transmits it on low-frequency radio waves? If so, which one do you recommend? Thank you for your time....

When should i use more than two layers in mine PCB Board

To use multi-layer pcb stackup in my design. Are there any principles or rules to be considered before creating a stack up for my next pcb design, and how would creating this layerstackup affect the board performance. Am designing a Board that has some High speed signals and needed a guide for this. Awaiting your response.
No description

Advantages of Arduino IDE 2.xx compared to Arduino IDE 1.8.19

Hi All, Currently, I create my projects using Arduino IDE 1.8.19, with the boards ranging from Arduino Nano to ESP32. I haven't encountered any issues; everything is going smoothly. Now there's Arduino IDE 2.xx that has been released for some time, and I wonder if there's a real advantage in switching to this version. ...

45 degree or 90 degree trace which is preferable when routing a pcb trace

I am designing a PCB board, which angle is generally preferable 45 or 90 degrees and why. And how does it affect the overall PCB performance? Are there any scenarios where one angle maybe more advantages than the other? Which one is more prone to signal integrity issues? Need your help on this?
No description

Fault Injection Capabilities

Did the HIL hardware include features for injecting faults into the system, and how were these capabilities utilized during testing?

Unlocking the Power of Software Knowledge for Hardware Engineers

I recently came across a fascinating post about delving into Firmware Over-The-Air (FOTA) updates, and it got me reflecting on the indispensable relationship between hardware and software in our dynamic field. As hardware engineers, our journey into the software realm can be truly enlightening. Let's take a glimpse into a recent project involving FOTA updates: 1. Initiating the Update: The Controller receives the signal for an OTA update, setting the process into motion....
No description

Are there any emerging technologies or tools that you believe will significantly impact the future..

There are several emerging technologies and tools that were gaining traction and had the potential to impact the future of hardware integration: Machine Learning in Hardware Design: ML techniques are increasingly being applied to optimize and automate aspects of hardware design, from architecture planning to layout optimization....

Monitoring and Debugging Tools

What tools do you rely on for monitoring and debugging during the hardware integration phase?

Challenges in Hardware-Software Integration

What challenges have you encountered in integrating hardware and software components, and how did you address them?

What’s the best insertion loss calculator?

There are so many insertion loss calculators for free online. Any community favorites or one you recommend using for PCB design?

What's the right PCB substrate for USB4?

Some colleagues are working on a project that leverages USB4 and looking to design their own PCB. The insertion loss limits are pretty clear in the USB4 standard (see image), which leaves routing, trace sizing, and the substrate as ways to mitigate insertion loss. What PCB substrate materials do you recommend to combat insertion loss in USB4 systems? Also, does a 2-layer design have a snowball's chance of passing EMC testing? I hope some of the PCB and hardware engineers in server - @Petr Dvořák @pallavaggarwal @Joseph Ogbonna - may be able to answer this question. Thanks....
No description

Texas Instruments - A Pillar in the Electronics Industry

Texas Instruments (TI), From power management to RF solutions, System-on-Chips (SoCs), and beyond, TI's vast collection of cutting-edge components is reshaping the landscape of electronic design. A Comprehensive Ecosystem: TI's extensive portfolio spans a myriad of electronics components, offering engineers a one-stop shop for their design needs. Whether it's high-performance power management ICs, precision analog components, or advanced RF solutions, TI's ecosystem is a treasure trove for those pushing the boundaries of technology. ...
No description

Exploring the Cutting-Edge Sensors in Autonomous Driving

The automotive industry is undergoing a revolutionary transformation with the advent of autonomous driving technology. At the heart of this transformation lies a sophisticated array of sensors that enable vehicles to perceive and navigate their surroundings. LiDAR (Light Detection and Ranging): - Applications: LiDAR sensors use laser beams to create high-resolution, 3D maps of the surroundings. They excel in detecting obstacles, pedestrians, and other vehicles, providing crucial depth perception to autonomous vehicles....
No description

Virtualization in Embedded Systems

Why do we need it? In the automotive industry, virtualization is pivotal in creating virtual test environments. Modern vehicles, equipped with cameras, radar, and LiDAR, continuously scan their environment, generating massive data streams. Virtualization enables the simulation of real-world conditions in a controlled setting. Engineers can recreate complex traffic scenarios or hazardous conditions within a virtual environment, allowing for extensive testing of vehicle response and safety systems without physical risks. ...