JDY-23 Help determining baud rate or resetting

Projects Networking, Protocols, and Devices
1

Hello everyone! I am new to the forum.

I have a JDY-23 and I entered the command 'AT+BAUD0" (ostensibly to set the baud rate to 115,200) but that baud does not work, in fact I cannot communicate with it at all!

  1. How can I perform a hard reset to factory defaults?
  2. What baud rate does AT+BAUD0 set the device to?

Thank you for your comments!

Stuart

2

have a look at JDY-23-UserManual
what host microcontroller are you thinking of using?
the JDY23 uses 3.3V logic so if connecting to a 5V logic microcontroller you will require a level converter

3

Horace,

I have it hooked up to an USB to 3.3V TTL Level Converter.
I was able to get it to respond to AT commands and work at baud 115,200 though I do not see it transmitting on bluetooth at all. I know it is Bluetooth 5, but even an older bluetooth card should still be able to hear it? My iPhone does not hear it either and I understand it is Bluetooth 5.

At commands work now at 115,200 though.

Stuart

4

iPhones are a problem in themselves, and may not work with that module.

Until you can establish a connection with the module, it will not transmit or receive data. Try to connect with the module using an Android phone or a laptop with Bluetooth, as they don't have such strict standards.

5

what microcontroller do you have it connected too?
the device is BLE (Bluetooth 5.0) so will not work with Bluetooth classic devices
a modern smartphone should work with BLE
on Androids I use Serial Bluetooth Terminal when working with ESP32 BLE serial
goto the menu and select Devices and Bluetooth LE - can you see a device with broadcast name JDY-23?

6

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