Author Topic: TE0741 Power Issue  (Read 211 times)

hossam84

  • Active Member
  • *
  • Posts: 40
TE0741 Power Issue
« on: November 12, 2020, 09:56:06 AM »
Hello JH,

I have an issue with TE0741 module.
I am using two modules TE0741 and TE0715-04-30-1I with a custom baseboard. I flashed both modules.
For TE0741 it was working fine for long time then I noticed that the D4 LED is Blinking with a sequence of ~1Hz.
Once I start UART communication between TE0715 and TE0741, the Red LED D2 goes high and the operation is malfunctioning (Not working as expected).

I had same issue 5 days ago and I increased the current limit and increased the supply voltage a bit (from 5.1V to 5.3V) then it worked OK.
Today, I got the same issue as before and I tried to increase the supply voltage up to 5.5V but with no success.

Any suggestions will be appreciated?

Thanks in advance,
H.H.

hossam84

  • Active Member
  • *
  • Posts: 40
Re: TE0741 Power Issue
« Reply #1 on: November 13, 2020, 07:21:02 AM »
Solved,

It wasn't power issue. It was firmware issue in TE0741 that has some wrong response to some UART commands.

I fixed it after some debugging and make some steps backward.

Thanks,
H.H.