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Dear Marco Montorsi, In order to use AT command, firstly, EZL 70 must be set to "AT Command - ATC" mode. Did you set the EZL 70'ss communication mode to "AT Command - ATC" mode? If not, please set it via ezConfig. And please note that the AT command should be sent via Serial Interface (COM port). It is not a TCP protocol > Marco Montorsi wrote: > ------------------------------------ > The issue was due to a bad power supply, which wasn'st giving 5V but a little bit less, thank you for your response, now i have the problem to command the EZL 70, when i try to use AT command it doesn'st work; First of all i create a telnet connection and the yellow led stays on, so i am sure the connection is established, from what i read i should use the command AT+PSE with final 's<CR>'s, to switch to command state, but when i give this command in input, the EZl 70 doesn'st return nothing, i can'st quite understand the switch between command state and online state, Thanks, MM
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