Do you have specific question? Good to know the areas devs are struggling with so we can align curri

Do you have specific question? Good to know the areas devs are struggling with so we can align curriculum to address common pain points

Ttechielew Do you have specific question? Good to know the areas devs are struggling with s...

Urlostdad•3/2/24, 4:03 PM

I mean...I really dont understand how to connect an ESP8266 to Node red UI
Like......Im using WAN rn
I didnt use no mqtt server kinda stuff

wafa_ath•3/2/24, 4:41 PM

Hi , i wanna run code in python version 3.6 and receive the output data in other version and other environment, can you gide me how to do that

UUrlostdad I mean...I really dont understand how to connect an ESP8266 to Node red UI Like....

Umesh Lokhande•3/2/24, 5:52 PM

Hi @Jd3n Here's step-by-step video about how to use MQTT protocol to control and monitor devices connected to ESP8266 https://youtu.be/c1st5cVRRzo. Once you understand how publish and subscribe works then you'll be ready to use MQTT Palette in Node-RED which will help you build a UI to control ESP8266.

YouTubeBINARYUPDATES

MQTT Protocol with NodeMCU ESP8266 Tutorial

Let’s learn how to use MQTT Protocol with NodeMCU ESP8266. We’ll create example project on how to control LED and monitor sensor data using publish and subscribe mechanism of MQTT Protocol. We’ll use MQTT server Mosquito. MQTTLens as a web client. And MyMQTT Mobile App as a MQTT Client.

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UUrlostdad Hmmm How do you conncet esp8266 with node red ui

Umesh Lokhande•3/2/24, 5:55 PM

I would suggest approach this problem in a 2-step solution. 1st step is to learn MQTT with ESP8266. 2nd step is to learn Node-RED to integrate ESP8266 using MQTT protocol I'll soon cover this topic in our upcoming Learning Hours (LH). Stay tuned for announcements

Wwafa_ath Hi , i wanna run code in python version 3.6 and receive the output data in ot...

techielewOP•3/2/24, 11:24 PM

Not sure if @abhishek awasthi has any advice here? Or any of the other @Middleware & OS folks

momo301199APP•3/3/24, 2:34 AM

Hi everyone I'm new in this groupe and embedded systems engineer any advice for me

onkyAPP•3/3/24, 2:35 AM

what kind of advice do you need?

Mmomo301199 Hi everyone I'm new in this groupe and embedded systems engineer any advice for ...

aymen ammari•3/3/24, 6:56 AM

Before choosing the device you should decide what you want to do with it, development boards and microcontrollers starts from Attiny to fpga, so explain more so we can help you

Shrushti•3/3/24, 9:49 AM

I am using nodered on windows 11 but when I try to install netbeast module the node-red it's not getting installed it says connection lost and netbeast router url is missing. What to do?
I am new to node-red

SShrushti I am using nodered on windows 11 but when I try to install netbeast module the n...

Umesh Lokhande•3/3/24, 10:32 AM

Hi @Shrushti have you tried running the beast server using

beast start --port 8000

beast start --port 8000

command? If you have, and it still fails, you should contact the author of the netbeast Node-RED they provide their contact information in the node's readme file

Shrushti•3/3/24, 10:33 AM

I searched and it says that it requires to have netbeast dashboard running
It says netbeast module and netbeast dashboard is required

SShrushti I searched and it says that it requires to have netbeast dashboard running It sa...

Umesh Lokhande•3/3/24, 10:46 AM

It seems to me there may be missing dependencies during the installation Netbeast node palette or an API error in the node palette's

NodeJS

NodeJS

code. The Author of the Netbeast node can only tell us more about this. But I don't think this issue is from Node-RED

Shrushti•3/3/24, 10:48 AM

Oh ok thanks

techielewOP•3/3/24, 11:03 AM

@momo301199 without more context, I'd recommend joining our weekly Office Hours meetup (https://discord.com/events/1130679493799977062/1210639837787328642/1215675393638400000) and in a couple weeks attending Learning Hour (https://discord.gg/MTDjdGyq?event=1212289328340795392) so we can get to know you better and give you a chance to get started in a direction.

Shrushti•3/3/24, 12:03 PM

Is there a alternative to netbeast? @Umesh Lokhande

SShrushti Is there a alternative to netbeast? @Umesh Lokhande

Umesh Lokhande•3/3/24, 12:14 PM

Yes, openHAB is good alternative as its a open-source and platfrom agnostic. Check out https://www.openhab.org/

openHAB

a vendor and technology agnostic open source automation software for your home

techielewOP•3/3/24, 6:07 PM

Only 16 hours left in our ide poll: https://discord.com/channels/1130679493799977062/1199293807737450538/1211611134411673601

techielewOP•3/3/24, 6:08 PM

And a new challenge for all you progs! ✅-code-reviewCoding Challenge < Python >

tahenan•3/3/24, 9:47 PM

Hi, can someone please explain some of the coding design pattern for Linux-embedded systems for distributed systems, also if any resources to learn more about these would be appreciated.

Ttahenan Hi, can someone please explain some of the coding design pattern for Linux-embed...

techielewOP•3/3/24, 9:59 PM

Hmmm, tough one. @abhishek awasthi?

There was another question recently about distributed systems architectures. There's a company who doesn't do Linux per se but has a companion RTOS to Windows/Linux hosts that is capable of managing distributed applications. I know this isn't what you're looking for but perhaps some of the documentation on page 4 here can give you a conceptual idea: https://tenasys.com/wp-content/uploads/2023/09/TenAsys.DS_.RTOS_.v3.92123.pdf

Ttahenan Hi, can someone please explain some of the coding design pattern for Linux-embed...

techielewOP•3/3/24, 10:01 PM

This RTOS uses networked global objects to communicate between processes (IPC), including distributed ones

Saßì•3/4/24, 3:07 AM

@JohnBudweiser Welcome,! We're happy to have you as a DevHead. Feel free to let us know what you're working on now and a bit about your technical background.

Joseph Ogbonna•3/4/24, 5:28 AM

Good day

Joseph Ogbonna•3/4/24, 5:32 AM

I need a guide on how to select the right gateway for my lorawan product. Am Designing a Lora based device using the STM32WL family series. Stm32 Lora SoC, I need help in gateway selection process. For now I just need a little gateway I can use to prototype the product. @Edge Networking @PCB & Analog

JJoseph Ogbonna I need a guide on how to select the right gateway for my lorawan product. Am Des...

techielewOP•3/4/24, 6:32 AM

@tahenan @BenCos18 @scitechindian and maybe @InsightMike may be able to lend some perspective here

JJoseph Ogbonna I need a guide on how to select the right gateway for my lorawan product. Am Des...

BenCos18•3/4/24, 6:56 AM

I personally like the wm1302 one atm that seeed studio has tbh

BBenCos18 I personally like the wm1302 one atm that seeed studio has tbh

Joseph Ogbonna•3/4/24, 6:58 AM

Great I will check it out. Will it work with the STM32 Lora family? And how can I do the configuration

JJoseph Ogbonna Great I will check it out. Will it work with the STM32 Lora family? And how can ...

BenCos18•3/4/24, 7:38 AM

Should work with most lora stuff
I used a pi with it though I know someone used a esp32 for it on the things network forum before

BenCos18•3/4/24, 7:38 AM

Lora stuff is pretty standard once you use the right frequency

BenCos18•3/4/24, 7:39 AM

Box is a bit hard to see but the lorawan hat is the board connected to the black wire

BenCos18•3/4/24, 8:19 AM

I have it setup as a packet forwarder pretty much though

youcef_ali•3/4/24, 9:58 AM

What are #LVDS Low voltage Differential signals and use cases ?

Yyoucef_ali What are #LVDS Low voltage Differential signals and use cases ?

aymen ammari•3/4/24, 11:12 AM

Low Voltage Differential Signaling (LVDS) is a method for transmitting digital data at high speeds over twisted-pair copper cables. LVDS uses differential signaling, meaning it sends the same signal over two wires with opposite polarities. This helps reduce noise and increase the immunity to electromagnetic interference.

LVDS is commonly used in various applications, including:

1. High-Speed Data Transmission: LVDS is widely used in applications requiring high-speed data transfer, such as displays, monitors, and high-speed serial communication links.
2. Display Interfaces: LVDS is often used in flat-panel displays, such as LCD and OLED screens, to transmit video data from the graphics controller to the display panel.
3. Automotive Applications: LVDS is employed in automotive systems for transmitting video signals between components such as cameras, displays, and infotainment systems.
4. Industrial Applications: LVDS is utilized in industrial automation systems, where high-speed, reliable data transmission is essential for control and monitoring purposes.
5. Networking Equipment: LVDS can be found in networking equipment, such as routers and switches, for transmitting data between different network components.

Overall, LVDS offers high-speed, low-power, and reliable data transmission, making it suitable for a wide range of applications where high-speed digital communication is required.

BBenCos18 Should work with most lora stuff I used a pi with it though I know someone used...

Joseph Ogbonna•3/4/24, 11:28 AM

Ok thanks I will need your help later ok

JJoseph Ogbonna Ok thanks I will need your help later ok 🙏

BenCos18•3/4/24, 11:36 AM

BenCos18•3/4/24, 11:46 AM

It'd a deep rabbithole when you start tbh

BenCos18•3/4/24, 11:47 AM

I have mine hooked up to the things network to help with coverage for it

Aaymen ammari Low Voltage Differential Signaling (LVDS) is a method for transmitting digital d...

youcef_ali•3/4/24, 12:50 PM

Thank you @aymen ammari, what this the best way to receive lvds signals and how to manage them ?

Yyoucef_ali Thank you @aymen ammari, what this the best way to receive lvds signals and how ...

aymen ammari•3/4/24, 1:03 PM

No worries, I'm not expert as signals but here is what I found in the Net :

aymen ammari•3/4/24, 1:04 PM

The best way to receive LVDS signals depends on the specific requirements of your application and the capabilities of the receiving device. However, here are some general guidelines for receiving and managing LVDS signals:

1. Use Proper LVDS Receiver ICs: Choose LVDS receiver ICs that are suitable for your application and meet the required speed, voltage levels, and noise immunity. There are many LVDS receiver ICs available from various semiconductor manufacturers designed specifically for different applications.
2. Match Impedances: Ensure that the impedance of the transmission lines and the receiver inputs match to minimize signal reflections and maintain signal integrity. This typically involves using controlled impedance transmission lines and termination resistors at the receiver end.
3. Clock and Data Recovery (CDR): In high-speed applications, consider using a Clock and Data Recovery (CDR) circuitry to recover the clock signal and data from the incoming LVDS signals. This helps to ensure accurate data reception even in the presence of jitter and signal distortion.
4. Signal Conditioning: Depending on the specific requirements of your application and the characteristics of the LVDS signals, you may need to implement signal conditioning techniques such as equalization, pre-emphasis, or filtering to improve signal quality and reliability.
5. Power Supply Decoupling: Properly decouple the power supplies of the LVDS receiver ICs to minimize noise and interference. Use low-noise power supplies and bypass capacitors close to the ICs to filter out high-frequency noise.
6. Grounding: Pay attention to grounding techniques to minimize ground loops and reduce noise coupling into the LVDS signals. Ensure a solid and low-impedance ground connection for both the transmitter and receiver sides.

aymen ammari•3/4/24, 1:04 PM

7. Error Detection and Correction: Implement error detection and correction mechanisms if necessary, especially in applications where data integrity is critical. This may involve using techniques such as CRC (Cyclic Redundancy Check) or FEC (Forward Error Correction).

Saßì•3/4/24, 1:20 PM

@streetdogg Welcome,! We're happy to have you as a DevHead. Feel free to let us know what you're working on now and a bit about your technical background.

Navadeep•3/4/24, 1:27 PM

Welcome @streetdogg !

NNavadeep Welcome @streetdogg !

streetdogg•3/4/24, 1:49 PM

hello

thank you!!

Sstreetdogg hello 🙂 thank you!!

techielewOP•3/4/24, 2:06 PM

Nice to meet you @streetdogg

streetdogg•3/4/24, 2:07 PM

nice to meet you too, @techielew

Budweiser•3/4/24, 2:20 PM

Hello

Ttechielew Hmmm, tough one. @abhishek awasthi? There was another question recently about d...

tahenan•3/4/24, 2:30 PM

Thank you for this, Will take a look, yes I just want to understand the basic concepts involved

Ttechielew @tahenan @BenCos18 @scitechindian and maybe @InsightMike may be able to lend so...

tahenan•3/4/24, 2:33 PM

Also just for prototype, take a look at sentrius gateway (not exactly something you may need), this has multiple wireless access, such as Wi-Fi, BLE and LoRa and LTE too https://www.lairdconnect.com/iot-devices/lorawan-iot-devices/sentrius-rg1xx-lorawan-gateway-wi-fi-ethernet-optional-lte-us-only

Laird Connectivity

Sentrius RG1xx LoRaWAN Gateway + Wi-Fi / Ethernet + Optional LTE (U...

New: RG191 with LTE for operation in US (Wi-Fi / LoRa / Ethernet / LTE)The Sentrius™ RG1xx LoRaWAN-Enabled Gateway is the ultimate in secure, scalable, robust LoRaWAN solutions. Gather data from as...

JJoseph Ogbonna I need a guide on how to select the right gateway for my lorawan product. Am Des...

InsightMike•3/4/24, 2:37 PM

You shouldn't have any compatibility issues. Most important is selecting the right frequency for your region. If your gateway is just used as a "packet forwarder" for low volume traffic, any will work fine. If you need to embed your LoRaWAN Network Server on the gateway then you'll need a higher end product. Also, some gateways have better range performance and better high traffic performance, but if you're just doing some small system testing that won't be an issue.

Do you have specific question? Good to know the areas devs are struggling with so we can align curri

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