Hi, I am using module RC7620 in my product. The module we are designed to use with UART. The big problem is the AT command doesn’t work well: it is often stuck. We’re trying to debug this problem: We are using MangOH yellow kit, connect UART pin of RC7620 with USB to COM. We are making a phone…

does AT command port stuck if setting AT+KSLEEP=0 but controlling the DTR to make module waking up?

Hi @jyijyi , We are tried both AT+KSLEEP=0 with DTR, and AT+KSLEEP=2. Nothing works. Thanks, Toan

You mean it is still stuck? Or just the "connect " not returned?

It’s both stuck and not repond URC code after connect

Is it duplicate issue? [image] UART AT Command hang when make a phone call RC76 does problem happen if setting AT+KSLEEP=1 ?

yes, you can reference my comment and video to help us fix this issue Thanks

Then you don’t need to open duplicate topic

Thankyou, Now I will focus to the root topic. Thanks

Yes, let’s go back to the original discussion thread then.

Problem with AT Command

jyijyi July 25, 2021, 2:22pm 6

Is it duplicate issue?

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