Has anyone tried the GT-38 wireless module?

Thread Starter

srFelipes

Joined Jul 3, 2020
7
Hi, I recently bought some GT-38 modules, they are supposedly an HC-12 replacement and work in the same fashion (https://www.electrodragon.com/w/GT-38). I tried to change the baudrate with no luck and I can't get them to do anything. I tried sending the command AT while the SET pin is tied to ground but I get no response. The only thing that gets an answer from the module is when I send the command AT+RB and its ERROR. Has somebody used this module or know what causes this?

Thanks in advance!
 

Thread Starter

srFelipes

Joined Jul 3, 2020
7
Hi Eric, thanks for your answer. Yes I saw it and tried that, with an arduino and an usb to serial TTL as shown in the site and that's how i got the ERROR message. I tried with 9600 baudrate, I'll try 1200 and see if it works, Thanks!

EDIT: Tried the 1200 baudrate and it does not solve the problem, the only bauradte in which y get the answer is 9600 and its ERROR :(
 
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