Ordered it from aliexpress 😅
Ordered it from aliexpress 
Aneed help related to using - use MAX485 TTL to RS485 Converter Module with esp32 to get convert value of rs485 output to serial and print it on serial port
Ai have a instrument with pinouts - rx,tx,com
Acode -
A#include <HardwareSerial.h>
#define DE_PIN 2 // GPIO pin connected to DE (Data Enable) and RE (Receiver Enable) pins of MAX485
#define RS485_SERIAL Serial2 // Define the Serial port used for RS485 communication
void setup() {
Serial.begin(9600); // Initialize serial monitor
RS485_SERIAL.begin(9600); // Initialize RS485 serial communication
pinMode(DE_PIN, OUTPUT); // Set DE pin as output
}
void loop() {
digitalWrite(DE_PIN, HIGH); // Enable transmission mode
if (RS485_SERIAL.available()) { // If data is available on RS485 port
while (RS485_SERIAL.available()) { // Read all available data
char c = RS485_SERIAL.read(); // Read character
Serial.print(c); // Print character to serial monitor
}
}
digitalWrite(DE_PIN, LOW); // Disable transmission mode
delay(100); // Delay before checking for new data
}
#define DE_PIN 2 // GPIO pin connected to DE (Data Enable) and RE (Receiver Enable) pins of MAX485
#define RS485_SERIAL Serial2 // Define the Serial port used for RS485 communication
void setup() {
Serial.begin(9600); // Initialize serial monitor
RS485_SERIAL.begin(9600); // Initialize RS485 serial communication
pinMode(DE_PIN, OUTPUT); // Set DE pin as output
}
void loop() {
digitalWrite(DE_PIN, HIGH); // Enable transmission mode
if (RS485_SERIAL.available()) { // If data is available on RS485 port
while (RS485_SERIAL.available()) { // Read all available data
char c = RS485_SERIAL.read(); // Read character
Serial.print(c); // Print character to serial monitor
}
}
digitalWrite(DE_PIN, LOW); // Disable transmission mode
delay(100); // Delay before checking for new data
}
Abut i am not getting the output but the instrument is displaying its valus
Ai searched online some article told me about matching slave id and poles
Abut i don't know what to do
Acan anyone hel me out
UHi @accur4te If you don't mind could you tell us the exact instrument that you're trying to interface with ESP32 over RS485? Because you may need a salve ID/commands to communicate with the master microcontroller.
Aits a flow meter
UI guess you'll find the details about addressing scheme or the format of the data packets, including how to address specific devices (slaves) on the bus. So that you can write code for esp32 to read flow meter data.
AOkay I will give it a try
Acan you tell how can i get started with it , i am confused about how should i do it.
BOhk
RYour code doesn't show any handling for the RE try apply the logic in your code if it doesn't work then check the wiring if it's done properly
AOkay got it
THey @Event Pings,
Good news/bad news. Good news is we have another Engineering Hour coming up this Friday on getting started with Direct Memory Access (DMA) from @Edison @Edison_ngunjiri: https://discord.gg/7sJVtCyhSc?event=1250671812329607218. He'll be taking us from basic concept to real-world applications and of course a demo of memory to memory data transfers, here on Sunday, June 16th at 15:00 GMT. This is the first in a series towards timing, interrupts, and then OS-based design.
Now for the bad news, and sorry for the short notice—I've got a last-minute conflict so I won't be able to host Office Hours tomorrow morning, which breaks an almost 8-month streak! But don't get too down, as next Friday, June 21st, we'll be back in Office Hours at the usual time of 15:00 GMT to continue our exploration of Zephyr with @ZacckOsiemo. Again, you can access that through the server event listings.
Of course, as always, keep the collab going in the server!
Good news/bad news. Good news is we have another Engineering Hour coming up this Friday on getting started with Direct Memory Access (DMA) from @Edison @Edison_ngunjiri: https://discord.gg/7sJVtCyhSc?event=1250671812329607218. He'll be taking us from basic concept to real-world applications and of course a demo of memory to memory data transfers, here on Sunday, June 16th at 15:00 GMT. This is the first in a series towards timing, interrupts, and then OS-based design.
Now for the bad news, and sorry for the short notice—I've got a last-minute conflict so I won't be able to host Office Hours tomorrow morning, which breaks an almost 8-month streak! But don't get too down, as next Friday, June 21st, we'll be back in Office Hours at the usual time of 15:00 GMT to continue our exploration of Zephyr with @ZacckOsiemo. Again, you can access that through the server event listings.
Of course, as always, keep the collab going in the server!
KHi,
I'm trying to log in on the meeting right now
I'm trying to log in on the meeting right now
KBut can't find the link
K
KI don't understand. Is there no meeting today?
K
KIt's now Friday 15:00 GMT,
so I thought there's a meeting...
so I thought there's a meeting...
N@kmulier
KOh, okay, I see it now. I was confused because the message was sent today, and Brandon says he can't host the meeting "tomorrow" - so that would point at Saturday.
I guess it's due to time zones.
I guess it's due to time zones.
DGM, fam. I'm JUST getting familiar with everything... Hoping to have my hardware back in the next week or so. Im grateful for the opportunity to learn from the best
TWelcome. Let us know what you are interested in learning 
T@Event Pings, a little less than 12 hours to go until @Edison introduces us to DMA! Join https://discord.com/channels/1130679493799977062/1212286094830477323 Sunday at 15:00 GMT.
SI am selected in buildspace in S5....
,
,
SAnd I will make my project during this event.
TCongrats sageboy that’s great! What’s in the acceptance pack 
SOh!..it is a place where different ppl join and complete their goal in 6 weeks,
SAcceptance pack have the instructions
S
SI found out about this on Twitter and then i joined it and got selected.
TKeep us posted!
THey @Event Pings, we're going to start this week's Engineering Hour session in a little less than an hour at 15:00 GMT. @Edison will be explaining Direct Memory Access (DMA) on an STM32 and showing how you can leverage it to optimize your designs.
Join us in the Engineering Hour stage channel:
https://discord.gg/mZtsxJQ3ZY?event=1250671812329607218
Join us in the Engineering Hour stage channel:
https://discord.gg/mZtsxJQ3ZY?event=1250671812329607218
SYeah!.. I have to choose a project which I am going to work on but I am confused, what should I choose , I have thought of an audio amplifier only with transistors no ic, a helium balloon control with esp, or a hand motion capture gloves. Idk what should I choose, do you have any other suggestions, i am a beginner btw
THow about we take a community poll? Would you be open to that? We can create one after the EH session today.
Kdemo message
SYeah sure, I am excited
Hhi I'm new here I just want to join my first event here
SSir when will you create the poll?
Ahow to fix gdb server error in stm32 cube ide
A
UHi @accur4te The error seems to be because of a corrupt workplace or maybe an incorrect debug configuration in STM32CubeIDE. So right-click on the project name, run clean-up, then make sure the debug settings, and try again. Please tell us more about which exact debugger/board/settings you're using while this error shows up.
Anow its says its unable to detect my stm32 board
Ai have a custom cortex m0 srm32 board , i don't kown much about it as i am trying to learn stm32 , i am following this course - https://www.udemy.com/course/microcontroller-embedded-c-programming/?couponCode=ST19MT61724