Hi! I recently bought a transceiver (two same pieces) to use with the STM32F407 for serial communication with UART. Unfortunately, I don't remember its name (whose photo I enclose).
It has always worked, but today by connecting it to the computer I noticed that it got very hot and smelled burnt. Luckily I have two of them so I tested the other one and noticed that it worked, didn't get hot and everything was fine.
I think the problem was the jumper between 3.3V and 5V that I forgot to connect... it might have short-circuited the power supply... am I wrong?
Actually, I don't know if it's broken because I haven't tested the programme (I send a string from STM32CubeIDE to Tera Term), being afraid to leave it attached to the computer as it heats up quickly. But anyway the overheating is abnormal.
I still tried to connect it by disconnecting the jumper, but it still overheats so I think the damage is irreparable.
I only ask for confirmation that the main cause could have been that short circuit.
Thanks .. and sorry for the stupid question!
I also take this opportunity to ask if there should be protection to avoid this inconvenience :/
It has always worked, but today by connecting it to the computer I noticed that it got very hot and smelled burnt. Luckily I have two of them so I tested the other one and noticed that it worked, didn't get hot and everything was fine.
I think the problem was the jumper between 3.3V and 5V that I forgot to connect... it might have short-circuited the power supply... am I wrong?
Actually, I don't know if it's broken because I haven't tested the programme (I send a string from STM32CubeIDE to Tera Term), being afraid to leave it attached to the computer as it heats up quickly. But anyway the overheating is abnormal.
I still tried to connect it by disconnecting the jumper, but it still overheats so I think the damage is irreparable.
I only ask for confirmation that the main cause could have been that short circuit.
Thanks .. and sorry for the stupid question!
I also take this opportunity to ask if there should be protection to avoid this inconvenience :/