DevHeads IoT Integration Server•16mo ago

Hey @Middleware & OS if you’re a Yocto user and have questions you need answered, post them in this

Hey @Middleware & OS if you’re a Yocto user and have questions you need answered, post them in this thread ahead of this coming Thursday’s AMA with Ming where he’ll be responding go questions in detail: 📦-middleware-and-osTech Tips Yocto AMA

The more notice we have, the better we can respond!

Cheers!

Ttechielew Hey @Middleware & OS if you’re a Yocto user and have questions you need answered...

※

※⊶ ₸ā₺ē₺ ⊷※•9/27/24, 8:42 AM

Hello, I am Top 4 Yocto answerer in Stackoverflow: https://stackoverflow.com/tags/yocto/topusers
I will try my best to help if you need me.

Stack Overflow

'yocto' Top Users

Stack Overflow | The World’s Largest Online Community for Developers

Abdullah•9/27/24, 9:53 AM

Is there a way to make the esp32 a wifi shield for the arduino uno and connect them in blynk?

Abdullah•9/27/24, 10:04 AM

Knowing that I want the esp32 to work as a wifi AP

AAbdullah Is there a way to make the esp32 a wifi shield for the arduino uno and connect t...

aymen ammari•9/27/24, 10:12 AM

Yes, you can use the ESP32 as a Wi-Fi shield for the Arduino Uno to connect to Blynk. You'd need to use the ESP32 in a serial communication setup with the Arduino, allowing the Arduino to handle logic while the ESP32 manages Wi-Fi connectivity. The connection typically involves using the SoftwareSerial library on the Arduino to communicate with the ESP32 over RX/TX pins.

Aaymen ammari Yes, you can use the ESP32 as a Wi-Fi shield for the Arduino Uno to connect to B...

Abdullah•9/27/24, 10:22 AM

Please is there a blog or video that explains this in detail so I can look at it?

shin-de•9/27/24, 12:06 PM

how to encrypt a code?(i will use my encrypted code to run the project and it will be public)

Sshin-de how to encrypt a code?(i will use my encrypted code to run the project and it wi...

ZacckOsiemo•9/27/24, 1:02 PM

scary stuff

nour_oud•9/27/24, 2:03 PM

Only one hour until our event: Getting Started: Choosing the Right IoT Hardware Platform to Jumpstart Your Design

We’ll explore the top development boards and help you choose the best one for your next design.
We’ll cover the pros and cons of platforms like:

BeagleBoard/Bone
Arduino Portfolio
Raspberry Pi
Espressif
Adafruit Ecosystems

Link: https://app.livestorm.co/devheads-community/devheads-weekly-office-hours-1

Don’t miss it!

melta101•9/27/24, 2:06 PM

Hello @MCU, MPU & Firmware ,
Has anyone got a good guide for USB UAC 2?

melta101•9/27/24, 2:09 PM

I have to create a sort of Audiorelay from my phone to a linux machine
My thought process was create a device with 2 USB port with UAC2 support where the 1 of the USB input gets connected to other port Output and vise versa

Other solution are welcome!
Cheers!

melta101•9/27/24, 4:27 PM

Hello @Ming,
Do you know a way to make linux act as a USB Audio Device/peripheral for a USB Host? From which we can access the IO Audio stream from Host using gstreamer/pyaudio?

Mmelta101 Hello @Ming, Do you know a way to make linux act as a USB Audio Device/periphera...

Ming•9/27/24, 5:07 PM

While I haven't played with it, there is a g_audiog_audio device driver, which is a Linux USB Audio gadget
I found some instructions for the Pi https://www.hackster.io/masonrf/rpi-zero-2-w-audio-gadget-448a6a

If you don't have a Pi, I could help you build the device driver

Hackster.io

RPi Zero 2 W Audio Gadget

The basics of turning a Raspberry Pi Zero 2 W into a USB OTG audio interface using the Linux gadget g_audio driver. By Mason Fleck.

Ming•9/27/24, 5:10 PM

Also - https://wiki.analog.com/resources/tools-software/linuxdsp/docs/linux-kernel-and-drivers/usb/device_mode/gdaget_audio

Abdullah•9/27/24, 5:12 PM

I have a project on Arduino Uno with ESP-01 that I connected to Blynk. When changing the password and the name of the Wi-Fi network, I need to change the code... I want this to be done via the web. What should I do?

MMing While I haven't played with it, there is a `g_audio` device driver, which is a L...

melta101•9/27/24, 5:13 PM

Oh,
This seems to be exactly what i wanted as a soln
I have rpi 4, WIll test this out and let you know,

melta101•9/27/24, 5:15 PM

I totally forgot about OTG,
all this time, i was thinking on how will i fool a Host to think that rpi is a peripheral

AAbdullah I have a project on Arduino Uno with ESP-01 that I connected to Blynk. When chan...

melta101•9/27/24, 5:21 PM

U could a webserver from which u can input your desired passwd, save that as a variable
Then reset the AP mode and then begin AP mode with new passwd variable

Mmelta101 U could a webserver from which u can input your desired passwd, save that as a v...

Abdullah•9/27/24, 5:25 PM

Please can you send a video or article explaining this?

AAbdullah Please can you send a video or article explaining this?

melta101•9/27/24, 5:26 PM

https://forum.arduino.cc/t/dynamic-configure-wifi-ssid-and-pwd/395466/4

Arduino Forum

Dynamic Configure wifi ssid and pwd

I am thinking more from a perspective if i want to produce such products in scale and volumes. I will not be able to sell it as-is. Each and every device has to have the n/w credentials hard coded. We will not be able to make it as a product, wherein you buy the programmed device and the user just plugs in and get started after setting their ow...

Mmelta101 https://forum.arduino.cc/t/dynamic-configure-wifi-ssid-and-pwd/395466/4

Abdullah•9/27/24, 5:26 PM

Thinks

Abdullah•9/27/24, 7:57 PM

I want to design an iot water quantity monitoring by esp32 that contains TDS, Turbidity, temperature, ph and water flow sensors. What parts and connections do you recommend and what additional parts do I need to build a complete system like this?

Abdullah•9/27/24, 7:58 PM

What is the best IOT platform to do this project on?

AAbdullah I want to design an iot water quantity monitoring by esp32 that contains TDS, Tu...

Umesh Lokhande•9/28/24, 7:46 AM

To keep things simple in the beginning I'd suggest use ESP32 to interface sensors and manage WiFi capabilities. There are enough analog and digital pins to handle h/w interfaces. For sensor selection, you may need to research online to ensure that they serve the purpose (compare power consumption, nature of analog output, cost, handling complexity to achieve accuracy/calibration). As fas as IoT platform goes stay with Blynk which offers a web dashboard and mobile apps with multi-user access. There are also plenty of videos on YT to help you get started. Best wishes!

nour_oud•9/28/24, 3:59 PM

Friendly Reminder about Upcoming Event
https://discord.gg/wAYBXw4K?event=1286326254844379207

Abdullah•9/28/24, 4:38 PM

I have a project connected to Arduino Uno with ESP-01 for Wi-Fi and it is controlled via the Blynk platform. I want to write the Wi-Fi network name and password externally via webserver and not inside the code. Is there a method, video, article, research or someone who can help me with this? I am in dire need of help.

javierpinzonc•9/28/24, 6:18 PM

Hi, greetings from Colombia

Jjavierpinzonc Hi, greetings from Colombia

Camila_99$$•9/28/24, 6:43 PM

Welcome Javier !

Jjavierpinzonc Hi, greetings from Colombia

techielewOP•9/29/24, 5:45 AM

What’s your story Javier? What brings you to DevHeads?

Nnour_oud 📅 Friendly Reminder about Upcoming Event https://discord.gg/wAYBXw4K?event=1286...

techielewOP•9/29/24, 5:47 AM

@Middleware & OS @MCU, MPU & Firmware, we hope to see you at tomorrows Engineering Hour on FreeRTOS with @Umesh Lokhande .

Join in the community meeting platform or Engineering Hour stage channel at 1500 UTC (Sunday, September 29)

bruce_wayne•9/29/24, 5:57 AM

Excited to join

bruce_wayne•9/29/24, 5:57 AM

Do we need a registration?

Bbruce_wayne Do we need a registration?

techielewOP•9/29/24, 5:59 AM

You can join in the Engineering Hour stage channel or sign up for an email reminder here: https://app.livestorm.co/devheads-community/devheads-weekly-office-hours-1/

DevHeads IoT Integration Server

Engineering Hour: Configure and use FreeRTOS API with Cortex-M MCU ...

PLEASE JOIN AS A SPEAKER IF YOU WANT TO PARTICIPATE IN THE DISCUSSION!Join DevHeads meetups to connect with other DevHeads and riff on a variety of topics for 30-60 minutes. Join here: https:...

AAbdullah I have a project connected to Arduino Uno with ESP-01 for Wi-Fi and it is contro...

Renuel Roberts•9/29/24, 10:58 AM

@kbrsi To allow you to configure the Wi-FiWi-Fi credentials for your ESP-01ESP-01 module externally through a web serverweb server, instead of hardcodinghardcoding them, you can use the WiFiManagerWiFiManager library. This will allow users to input the Wi-FiWi-Fi network name and password via a simple web interfaceweb interface. You can use this resources to guide you through the process:

https://github.com/tzapu/WiFiManager
https://randomnerdtutorials.com/wifimanager-with-esp8266-autoconnect-custom-parameter-and-manage-your-ssid-and-password/

GitHub

GitHub - tzapu/WiFiManager: ESP8266 WiFi Connection manager with we...

ESP8266 WiFi Connection manager with web captive portal - tzapu/WiFiManager

Random Nerd Tutorials

WiFiManager with ESP8266 - Autoconnect, Custom Parameter and Manage...

In this guide you'll learn how to use WiFiManager with the ESP8266 board. WiFiManager allows you to connect your ESP8266 to different Access Points (AP) without having to hard-code and upload new code to your board. Additionally, you can also add custom parameters (variables) and manage multiple SSID connections.

Nnour_oud 📅 Friendly Reminder about Upcoming Event https://discord.gg/wAYBXw4K?event=1286...

techielewOP•9/29/24, 2:21 PM

Reminder @Event Pings that we'll be starting this week's Engineering Hour on FreeRTOS for Cortex-M with @Umesh Lokhande in about 40 minutes. There are now a couple ways you can participate:

Joining in the event platform here: https://app.livestorm.co/devheads-community/devheads-weekly-office-hours-1/
Hanging out in the Engineering Hour Stage Channel

Either way you choose to join, we hope to see you there!

Abdullah•9/29/24, 5:36 PM

I have a project connected to the ESP32. The TDS sensor in it does not give correct values. It gives values of approximately 450 ppm for a liquid with a value of 940 ppm. What is the solution?

AAbdullah I have a project connected to the ESP32. The TDS sensor in it does not give corr...

melta101•9/29/24, 7:18 PM

Did you calibrate it?

Mmelta101 Did you calibrate it?

Abdullah•9/29/24, 7:24 PM

How do I calibrate it, knowing that I entered the temperature value by connecting the max6675 sensor and used the code on this site for the tds sensor meter?

https://randomnerdtutorials.com/esp32-tds-water-quality-sensor/

Random Nerd Tutorials

ESP32 with TDS Sensor (Water Quality Sensor) | Random Nerd Tutorials

How to use TDS meter (Total Dissolved Solids) with the ESP32. A TDS meter indicates the total dissolved solids like salts, minerals, and metals, in a solution.

Abdullah•9/29/24, 7:26 PM

I can't send the full code because I didn't open Discord features.

Xar•9/29/24, 8:17 PM

Hello, web dev here! I'm looking into learning about embedded programming and have decided that a simple RTOS from scratch would be my project. I have no interest in doing anything useful with the final product, the moment I get 80% - 95% of learning value I plan stopping and learning mech-eng. I have a RP 4 that would make for a good final boss but I don't know what to buy as a tutorial and any other equipment?

boualleg sabrina•9/29/24, 11:36 PM

@Xar like you need ideas ??

Bboualleg sabrina @Xar like you need ideas ??

Xar•9/29/24, 11:39 PM

Yeah like what microprocessor and other stuff to buy

boualleg sabrina•9/29/24, 11:39 PM

but you don't have the project idea

Xar•9/29/24, 11:59 PM

The idea was to build an RTOS from scratch

XXar The idea was to build an RTOS from scratch

melta101•9/30/24, 2:31 AM

If you really want to save money, you could try qemu

Mmelta101 If you really want to save money, you could try qemu

Xar•9/30/24, 2:34 AM

Good to know, I do have a budget of $100 or so.

melta101•9/30/24, 2:35 AM

Qemu is free

melta101•9/30/24, 2:38 AM

But if you want a feel of real world hardware,
100$ is a decent to buy variety good amount.
You could start with a any STM32 NUCLEO Board
Preferrebly the stm32f0 or f4
There are cheaper alternatives like esp32

XXar Hello, web dev here! I'm looking into learning about embedded programming and ha...

ZacckOsiemo•9/30/24, 3:18 AM

they just took 20 yrs to land rtos features in linux, if you plan on building an RTOS its best to focus on micro controllers

ZZacckOsiemo they just took 20 yrs to land rtos features in linux, if you plan on building an...

Xar•9/30/24, 3:21 AM

Microcontrollers is the plan!

XXar Microcontrollers is the plan!

ZacckOsiemo•9/30/24, 3:26 AM

also while ‘Making an RTOS’ might seem cooler you are better off ‘sending sensor data to a web dashboard’ which in itself is an iot project. Bonus points if you build everything from scratch (if its for learning purposes)

Hey @Middleware & OS if you’re a Yocto user and have questions you need answered, post them in this

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