DevHeads IoT Integration Server•14mo ago

Just use basic client-server architecture. Let's say for example hc-06 module to be used as a client

Just use basic client-server architecture. Let's say for example hc-06 module to be used as a client and by programming ESP32's bluetooth to act as a server so as to establish communication

UUmesh Lokhande Just use basic client-server architecture. Let's say for example hc-06 module to...

Accur4te•11/9/24, 6:01 AM

i tried various codes for the same , all of them are not working . i am unable to get any good article/page for it , can you suggest any article for the same

AAccur4te hey guys any one has any idea about connecting hc - 06 bluetooth module to esp32...

Marvin•11/9/24, 6:01 AM

If you are asking about physical connection, H6-06 can be connected via UART.

MMarvin If you are asking about physical connection, H6-06 can be connected via UART.

Accur4te•11/9/24, 6:02 AM

i am asking about the bluetooth pairing

AAccur4te i am asking about the bluetooth pairing

Marvee Amasi•11/9/24, 6:14 AM

Have u try setting up the ESP32 in Bluetooth Serial mode with

BluetoothSerial

BluetoothSerial

HC 06 uses Bluetooth Classic, so code it to handle pairing as a Bluetooth Serial device, not BLE. Once you ve gotten the ESP32 set as a server, make sure its discoverable and try pairing with AT commands from HC 06

Marvee Amasi•11/9/24, 6:15 AM

Then check this ESP32's

BluetoothSerial

BluetoothSerial

library examples cus they re a good starting point for Classic Bluetooth pairing

AAccur4te i am asking about the bluetooth pairing

Renuel Roberts•11/9/24, 7:20 AM

If u want to directly use the

ESP32’s

ESP32’s

built-in Bluetooth functionality, you can opt for

Classic Bluetooth

Classic Bluetooth

Bluetooth Low Energy

Bluetooth Low Energy

(BLE) depending on your project.

Classic Bluetooth

Classic Bluetooth

is great for continuous data exchange, while

BLE

BLE

is optimized for low-power, intermittent communication.

#include "BluetoothSerial.h"
#include <BLEDevice.h>
#include <BLEServer.h>

BluetoothSerial ESP_BT;  // Classic Bluetooth object

void setup() {
  Serial.begin(115200);

  // Classic Bluetooth setup
  ESP_BT.begin("ESP32_BT_Device");  // Name the device
  Serial.println("Classic Bluetooth Device is Ready to Pair");

  // BLE setup
  BLEDevice::init("ESP32_BLE_Server");  // Name the BLE server
  BLEServer *pServer = BLEDevice::createServer();
  Serial.println("BLE Server is Running");
}

void loop() {
  // Handle Classic Bluetooth data
  if (ESP_BT.available()) {
    char received = ESP_BT.read();
    Serial.write(received);  // Echo received data
  }

  // BLE logic can be added here as needed for advanced configurations
}

#include "BluetoothSerial.h"
#include <BLEDevice.h>
#include <BLEServer.h>

BluetoothSerial ESP_BT;  // Classic Bluetooth object

void setup() {
  Serial.begin(115200);

  // Classic Bluetooth setup
  ESP_BT.begin("ESP32_BT_Device");  // Name the device
  Serial.println("Classic Bluetooth Device is Ready to Pair");

  // BLE setup
  BLEDevice::init("ESP32_BLE_Server");  // Name the BLE server
  BLEServer *pServer = BLEDevice::createServer();
  Serial.println("BLE Server is Running");
}

void loop() {
  // Handle Classic Bluetooth data
  if (ESP_BT.available()) {
    char received = ESP_BT.read();
    Serial.write(received);  // Echo received data
  }

  // BLE logic can be added here as needed for advanced configurations
}

segfaultdev.elf•11/9/24, 7:57 AM

segfaultdev.elf•11/9/24, 7:57 AM

I am getting this whenever I reset my MCU

segfaultdev.elf•11/9/24, 7:58 AM

which introduce a garbage character to my serial monitor

segfaultdev.elf•11/9/24, 7:58 AM

is it normal and how to prevent it?

Renuel Roberts•11/9/24, 8:09 AM

@Undefined A spurious serial data transmission occurring when your microcontroller (

MCU

MCU

) resets is kinda common which leads to a garbage character appearing on your serial monitor. it's usually caused by

UART Line Behavior During Reset

UART Line Behavior During Reset

Baud Rate Instability

Baud Rate Instability

and electrical noise to resolve this u should use a capacitor on d reset pin to reduce noise and signal instability and also ensure

UART

UART

transmissions are only enabled after full initialization, Implement pull-up/pull-down resistors on UART lines to prevent them from floating and apply logic to ignore or filter unexpected characters during startup.

RRenuel Roberts @Undefined A spurious serial data transmission occurring when your microcontroll...

segfaultdev.elf•11/9/24, 8:13 AM

got it

segfaultdev.elf•11/9/24, 8:13 AM

I am using a aliexpress board it doesn't have any pull up resistor on uart line

Ssegfaultdev.elf I am using a aliexpress board it doesn't have any pull up resistor on uart line

Renuel Roberts•11/9/24, 8:15 AM

Implement it and u should be good

RRenuel Roberts Implement it and u should be good

segfaultdev.elf•11/9/24, 8:15 AM

should I go with 10K one?

segfaultdev.elf•11/9/24, 8:15 AM

i doesn't have a bit low value like 4.7k one

Ssegfaultdev.elf should I go with 10K one?

Renuel Roberts•11/9/24, 8:18 AM

Yea its okay

RRenuel Roberts Yea its okay

segfaultdev.elf•11/9/24, 8:19 AM

not fixing the issue

Renuel Roberts•11/9/24, 8:19 AM

But if u issues like electrical noise or instability surfaces the solution would be d 4.7k

RRenuel Roberts But if u issues like electrical noise or instability surfaces the solution would...

segfaultdev.elf•11/9/24, 8:20 AM

maybe 4.7k is needed

Ssegfaultdev.elf not fixing the issue

Renuel Roberts•11/9/24, 8:20 AM

Then I think u really need d 4.7k

Ssegfaultdev.elf maybe 4.7k is needed

Renuel Roberts•11/9/24, 8:20 AM

Yea

segfaultdev.elf•11/9/24, 8:20 AM

adding two 10k in parallel should do the job

segfaultdev.elf•11/9/24, 8:20 AM

since it will be 5k

Renuel Roberts•11/9/24, 8:21 AM

Not done this b4 but u can try it out and see if it does

RRenuel Roberts Not done this b4 but u can try it out and see if it does

segfaultdev.elf•11/9/24, 8:24 AM

still the issue remains

segfaultdev.elf•11/9/24, 8:27 AM

I think the behavior is kinda normal

Ssegfaultdev.elf still the issue remains

Renuel Roberts•11/9/24, 8:44 AM

Did u add d logic to filter out the unexpected/garbage characters

segfaultdev.elf•11/9/24, 8:50 AM

RRenuel Roberts Did u add d logic to filter out the unexpected/garbage characters

segfaultdev.elf•11/9/24, 8:53 AM

it is happening as i hit the reset button

segfaultdev.elf•11/9/24, 8:53 AM

there is no code to run at that stage

Renuel Roberts•11/9/24, 9:02 AM

Is ur pull up resistor closed to ur uart input pin

Ssegfaultdev.elf Click to see attachment

ZacckOsiemo•11/9/24, 9:22 AM

is it corrupting anything or just spurios noise on power cycle?

segfaultdev.elf•11/9/24, 9:23 AM

noise on power cycle

Ssegfaultdev.elf noise on power cycle

ZacckOsiemo•11/9/24, 9:23 AM

have you read the datasheet, go through that power up and power down sequence again

ZacckOsiemo•11/9/24, 9:24 AM

There could be some work happening during power cycle that you may not be able to change

AAccur4te i tried various codes for the same , all of them are not working . i am unable ...

Umesh LokhandeOP•11/9/24, 1:08 PM

Here's a discussion where you'll find it worked with core version 2.0.6. Please follow the entire conversation https://github.com/espressif/arduino-esp32/issues/6876. It seems to be an issue with the HC-06 & library version conflict

Ttechielew @Ready to Work, there's an organization looking for assembly developers. Like, r...

techielew•11/9/24, 2:49 PM

@Ready to Work, a couple updates:

The Assembly job "req" I posted earlier this week is still being defined. They said they should have answers on Monday, at which point I'll share more with those who indicated they were interested in the position.
We're partnering with @Marcweb of Webster and Webster on jobs and @JoeSchneider's firmware org Dojo Five has some positions open. You can find more from both in the #jobs channel.

Ttechielew @Ready to Work, a couple updates: 1. The Assembly job "req" I posted earlier thi...

techielew•11/9/24, 2:50 PM

Happy hunting!

addalaabderrahim•11/9/24, 2:58 PM

Hello every one i have little problem about scada system on panneaux solaire the problem is i wanna make another interface to show information from server ..
So we used here serial comminecation rs485 modbus
And i can get addressage of All information like exp when i recive 62800 i kn its for curant or voltage and so on ..
So the qst is how to mapping all address i kn with the new one like i kn 62800 for voltage but voltage update each second for exp

addalaabderrahim•11/9/24, 2:58 PM

So i wanna mapping the new information with old address to know this info for voltage

Ajay•11/9/24, 3:06 PM

I am looking for iot course

AAjay I am looking for iot course

Fadi zidi•11/9/24, 3:31 PM

More specific?

Fadi zidi•11/9/24, 3:34 PM

https://www.netacad.com/courses/introduction-iot?courseLang=en-US

Introduction to Internet of Things (IoT) - Skills for All

Free online course to learn about Internet of Things (IoT) - from Cisco Networking Academy. Sign up today!

Fadi zidi•11/9/24, 3:34 PM

You can start with free Cisco course

Fadi zidi•11/9/24, 3:35 PM

Another one with certification

https://www.simplilearn.com/learn-iot-basics-skillup

Simplilearn.com

Free IoT Certification Course - Learn IoT Online

Enroll in this free IoT online course and earn a certification. Gain hands-on skills in Internet of Things with expert-led lessons at no cost!

Aaddalaabderrahim Hello every one i have little problem about scada system on panneaux solaire the...

techielew•11/9/24, 3:42 PM

@ZacckOsiemo @Umesh Lokhande and I have been doing a lot of talking about modbus. @32bitSaviour may have something to add here too.

Aaddalaabderrahim So i wanna mapping the new information with old address to know this info for vo...

ZacckOsiemo•11/9/24, 3:47 PM

Hi, could you try rephrasing your question I struggle to understand the issue.

segfaultdev.elf•11/9/24, 6:25 PM

I am confused between uni-T 61E+ and ZOYI ZT-703s can anyone help me with their suggestions?

segfaultdev.elf•11/9/24, 7:13 PM

or anyone can suggest me good Multimeter in $100 range

#include "BluetoothSerial.h" #include <BLEDevice.h> #include <BLEServer.h> BluetoothSerial ESP_BT; // Classic Bluetooth object void setup() { Serial.begin(115200); // Classic Bluetooth setup ESP_BT.begin("ESP32_BT_Device"); // Name the device Serial.println("Classic Bluetooth Device is Ready to Pair"); // BLE setup BLEDevice::init("ESP32_BLE_Server"); // Name the BLE server BLEServer *pServer = BLEDevice::createServer(); Serial.println("BLE Server is Running"); } void loop() { // Handle Classic Bluetooth data if (ESP_BT.available()) { char received = ESP_BT.read(); Serial.write(received); // Echo received data } // BLE logic can be added here as needed for advanced configurations }

Just use basic client-server architecture. Let's say for example hc-06 module to be used as a client

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