User Manual

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Espressif Systems

ESP8266

AT Command Examples

4.2.

UDP transmission UART - WiFi passthrough

Here is an example that ESP8266 soft-AP create a UDP transparent transmission. For ESP8266

station, it can execute UDP transparent transmission in the similar way. For more information about

AT commands, please refer to documentation “ 4A-ESP8266__AT Instruction Set ”.

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Set WiFi mode :

AT+CWMODE=3 // softAP+station mode

Response :OK

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Connect PC to ESP8266 soft-AP

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Using a network tool on PC to create a UDP.

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Device create a UDP transmission which remote IP and port are ﬁxed.

AT+CIPSTART="UDP","192.168.4.2",1001,2233,0

Response :OK

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Enable transparent transmission mode:

AT+CIPMODE=1

Response :OK

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Start sending data:

AT+CIPSEND

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