How to factory reset a HM-10 module

Projects Networking, Protocols, and Devices
1

Hi,

I am struggling with my HM-10 device. I wired it to my UNO and I was able to send commands to it using a simple serial pass through sketch.

I was paying with AT+BAUD command and I probably set a wrong value because I am not able to communicate with the module anymore. Now, when I send commands I get 'strange' characters.

I have tried all the speeds from 300 to 250000 to communicate with the module without success.

Do anyone know how to reset the HM-10 to factory setting?

FYI: my device has a button.

Thank you for any help.

2

AT+RENEW

While strange characters suggest the wrong baud rate, if you have tried all the regular rates and still no result, there may be something else going on.

The button is probably redundant.

3

Thanks Nick_Pyner but AT+RENEW cannot work because UNO and HM-10 are set at different speeds and this prevents communication between the two.

I eventually sorted this out setting speed at 230400 :o.

4

I was able to send AT command with arduino mega2560 but after sending the AT+ADTY0, i can't anymore. The led is flashing quickly and seem to be less bright. Since i can't send AT COMMAND anymore, is there a way to make a reset to factory setting?
Tks on advance

Using a hm-10 module

5

Does someone know if the hm-10 pin 11 RESETB set to low = reset to factory setting?
Thanks in advance

6

Hi experts,
i am having the same issue, i tried all AT commands with different bauds but no luck.
some one could you please suggest the solution?
Thanks
Jignesh

7

This has been a nonsense thread for three years. The baud rate for AT mode is 9600 - no exceptions. The command for restore factory values, as clearly described in the manual, is AT+RENEW. There is also an AT+RESET command, but I don't know what it actually does. It is very likely that you don't actually have any issues in this matter at all, you just think you do.