文件编号Document No.ESP-07-2-007-03文件名称Document Name产品/工艺变更通知Product/Process Change Notice(PCN)文件版本Document Version1.4保存期限Retention Period5 年5 yearswww.espressif.com Page1/9发布 ESP32-C3-MINI-1 模组通用 AT 固件 V2.4.2.0Release ESP32-C3-MINI-1 module Default Common AT firmware V2.4.2.0PCN 编号PCN No.PCN20220902提出日期Issue Date of PCN2022/09/16变更日期Proposed Date of Change2022/10/15预计变更后产品首次出货日期Proposed Date of FirstShipment After Change2022/12/16PCN类型/ PCN Category客户需要批准/Customer Approval Required客户通知/Customer Notification1. 影响产品名称/ Affected Product NameESP32-C3-MINI-1-N4, ESP32-C3-MINI-1-H42. 变更原因/ Reason for Change正式发布段落1列出模组对应的AT固件。Officially release the AT firmware of the modules listed in Para 1.3.变更描述/ Description of Change正式发布模组默认烧写通用版本 AT 固件。Official release default common version AT firmware on modules listed in Para 1.4.变更对比/ Change Comparison请见附录 I：变更对比。Please refer to Appendix I: Change comparison.通过包装标签信息识别该变更。Identify the change by querying the Package Label Information.5. 变更影响/ Impact of Change1)品质和性能/ Quality & Performance:由于产品的硬件未做变更，理论上此变更对产品品质、性能及使用均无影响，实际应用中客户可基于自身应用场景再次进一步测试。Since the hardware of the product has not been changed, theoretically this change has no impact on theproduct quality, performance and use cases of those products listed in Para 1. In practical applications,customers can further test based on their own application scenarios.2) 成本/ Cost:对直接使用通用 AT 固件的客户，可降低后续生产环节的烧录成本。If you directly use the common AT firmware, the programming cost in subsequent production can bereduced.3) 交期/ Delivery: 无/ None4) 生产料号/ Material Part Numbers (MPN): 无/ None5) 认证/ Certification: 无/ None6. 变更前后产品处理/ How to Deal with ProductsFIFO。针对客户特殊要求的AT版本，按照客户实际要求执行。FIFO. Please proceed as requested if customers request a particular AT firmware version. www.espressif.com Page2/97.变更验证结果/ Test Verification ResultRelated ECN No.ECN-2022-031Performance Test Performance Test is Pass.8. 给使用者的验证建议/ Verification Suggestion To Users建议使用者根据实际应用场景、真实应用环境，如实际应用的网络、路由器设备、温湿度环境等，对产品用到的功能做整机测试。It is suggested that users conduct a complete machine test of the functions used in the product according tothe actual application scenarios and real application environment, such as the actual application network,routers, temperature and humidity environment, etc. www.espressif.com Page3/9Appendix I 变更对比/Change Comparison1. ESP32-C3-MINI-1 模组变更信息ESP32-C3-MINI-1 Modules Change Information项目Item变更前Before Change变更后After Change产品名称ProductName无变化No Change丝印Marking无变化No Change标签固件版本信息SDKVersion onLabelInformation固件FirmwareNA通过串口 AT 命令查询 AT 版本号Query AT version number through serial AT command发送 Send：AT+GMR返回 Reply：V2.4.2.0 www.espressif.com Page4/92. ESP32- C3-MINI-1 AT v2.4.2.0 发布说明ESP32- C3-MINI-1 AT v2.4.2.0 Release NoteFeaturesBase AT commandAT: Test AT startup.AT+RST: Restart a module.AT+GMR: Check version information.AT+CMD: List all AT commands and types supported in current firmware.AT+GSLP: Enter Deep-sleep mode.ATE: Configure AT commands echoing.AT+RESTORE: Restore factory default settings of the module.AT+UART_CUR: Current UART configuration, not saved in flash.AT+UART_DEF: Default UART configuration, saved in flash.AT+SLEEP: Set the sleep mode.AT+SYSRAM: Query current remaining heap size and minimum heap size.AT+SYSMSG: Query/Set System Prompt Information.AT+SYSFLASH: Query/Set User Partitions in Flash.AT+FS: Filesystem Operations.AT+RFPOWER: Query/Set RF TX Power.AT+SYSROLLBACK: Roll back to the previous firmware.AT+SYSTIMESTAMP: Query/Set local time stamp.AT+SYSLOG: Enable or disable the AT error code prompt.AT+SLEEPWKCFG: Query/Set the light-sleep wakeup source and awake GPIO.AT+SYSSTORE: Query/Set parameter store mode.AT+SYSREG: Read/write the register.AT+SYSTEMP: Read the internal chip Celsius temperature value.Wi-Fi command AT+CWMODE: Set the Wi-Fi mode (Station/SoftAP/Station+SoftAP). AT+CWSTATE: Query the Wi-Fi state and Wi-Fi information. AT+CWJAP: Connect to an AP. AT+CWRECONNCFG: Query/Set the Wi-Fi reconnecting configuration. AT+CWLAPOPT: Set the configuration for the command AT+CWLAP. AT+CWLAP: List available APs. AT+CWQAP: Disconnect from an AP. www.espressif.com Page5/9AT+CWSAP: Query/Set the configuration of an ESP32-C3 SoftAP.AT+CWLIF: Obtain IP address of the station that connects to an ESP32-C3 SoftAP.AT+CWQIF: Disconnect stations from an ESP32-C3 SoftAP.AT+CWDHCP: Enable/disable DHCP.AT+CWDHCPS: Query/Set the IP addresses allocated by an ESP32-C3 SoftAP DHCP server.AT+CWAUTOCONN: Connect to an AP automatically when powered on.AT+CWAPPROTO: Query/Set the 802.11 b/g/n protocol standard of SoftAP mode.AT+CWSTAPROTO: Query/Set the 802.11 b/g/n protocol standard of station mode.AT+CIPSTAMAC: Query/Set the MAC address of an ESP32-C3 station.AT+CIPAPMAC: Query/Set the MAC address of an ESP32-C3 SoftAP.AT+CIPSTA: Query/Set the IP address of an ESP32-C3 station.AT+CIPAP: Query/Set the IP address of an ESP32-C3 SoftAP.AT+CWSTARTSMART: Start SmartConfig.AT+CWSTOPSMART: Stop SmartConfig.AT+WPS: Enable the WPS function.AT+MDNS: Configure the mDNS function.AT+CWJEAP: Connect to a WPA2 Enterprise AP.AT+CWHOSTNAME: Query/Set the host name of an ESP32-C3 station.AT+CWCOUNTRY: Query/Set the Wi-Fi Country Code.TCP/IP command AT+CIPV6: Enable/disable the network of Internet Protocol Version 6 (IPv6). AT+CIPSTATE: Obtain the TCP/UDP/SSL connection information. AT+CIPSTATUS (deprecated): Obtain the TCP/UDP/SSL connection status and information. AT+CIPDOMAIN: Resolve a Domain Name. AT+CIPSTART: Establish TCP connection, UDP transmission, or SSL connection. AT+CIPSTARTEX: Establish TCP connection, UDP transmission, or SSL connection with anautomatically assigned ID. [Data Mode Only] +++: Exit from the data mode. AT+CIPSEND: Send data in the normal transmission mode or Wi-Fi normal transmission mode. AT+CIPSENDL: Send long data in paraller in the normal transmission mode. AT+CIPSENDLCFG: Set the configuration for the command AT+CIPSENDL. AT+CIPSENDEX: Send data in the normal transmission mode in expanded ways. AT+CIPCLOSE: Close TCP/UDP/SSL connection. AT+CIFSR: Obtain the local IP address and MAC address. AT+CIPMUX: Enable/disable the multiple connections mode. AT+CIPSERVER: Delete/create a TCP/SSL server. AT+CIPSERVERMAXCONN: Query/Set the maximum connections allowed by a server. www.espressif.com Page6/9AT+CIPMODE: Query/Set the transmission mode.AT+SAVETRANSLINK: Set whether to enter Wi-Fi normal transmission mode on power-up.AT+CIPSTO: Query/Set the local TCP Server Timeout.AT+CIPSNTPCFG: Query/Set the time zone and SNTP server.AT+CIPSNTPTIME: Query the SNTP time.AT+CIPSNTPINTV: Query/Set the SNTP time synchronization interval.AT+CIUPDATE: Upgrade the firmware through Wi-Fi.AT+CIPDINFO: Set “+IPD” message mode.AT+CIPSSLCCONF: Query/Set SSL clients.AT+CIPSSLCCN: Query/Set the Common Name of the SSL client.AT+CIPSSLCSNI: Query/Set SSL client Server Name Indication (SNI).AT+CIPSSLCALPN: Query/Set SSL client Application Layer Protocol Negotiation (ALPN).AT+CIPSSLCPSK: Query/Set SSL client Pre-shared Key (PSK).AT+CIPRECONNINTV: Query/Set the TCP/UDP/SSL reconnection interval for the Wi-Fi normaltransmission mode.AT+CIPRECVMODE: Query/Set socket receiving mode.AT+CIPRECVDATA: Obtain socket data in passive receiving mode.AT+CIPRECVLEN: Obtain socket data length in passive receiving mode.AT+PING: Ping the remote host.AT+CIPDNS: Query/Set DNS server information.AT+CIPTCPOPT: Query/Set the socket options.BT&BLE command AT+BLEINIT: Bluetooth LE initialization. AT+BLEADDR: Query/Set Bluetooth LE device address. AT+BLENAME: Query/Set Bluetooth LE device name. AT+BLESCANPARAM: Query/Set parameters of Bluetooth LE scanning. AT+BLESCAN: Enable Bluetooth LE scanning. AT+BLESCANRSPDATA: Set Bluetooth LE scan response. AT+BLEADVPARAM: Query/Set parameters of Bluetooth LE advertising. AT+BLEADVDATA: Set Bluetooth LE advertising data. AT+BLEADVDATAEX: Automatically set Bluetooth LE advertising data. AT+BLEADVSTART: Start Bluetooth LE advertising. AT+BLEADVSTOP: Stop Bluetooth LE advertising. AT+BLECONN: Establish Bluetooth LE connection. AT+BLECONNPARAM: Query/Update parameters of Bluetooth LE connection. AT+BLEDISCONN: End Bluetooth LE connection. AT+BLEDATALEN: Set Bluetooth LE data packet length. www.espressif.com Page7/9AT+BLECFGMTU: Set Bluetooth LE MTU length.AT+BLEGATTSSRVCRE: Generic Attributes Server (GATTS) creates services.AT+BLEGATTSSRVSTART: GATTS starts services.AT+BLEGATTSSRVSTOP: GATTS Stops Services.AT+BLEGATTSSRV: GATTS discovers services.AT+BLEGATTSCHAR: GATTS discovers characteristics.AT+BLEGATTSNTFY: Notify a client of the value of a characteristic value from the server.AT+BLEGATTSIND: Indicate the characteristic value from the server to a client.AT+BLEGATTSSETATTR: GATTS sets characteristics.AT+BLEGATTCPRIMSRV: Generic Attributes Client (GATTC) discovers primary services.AT+BLEGATTCINCLSRV: GATTC discovers included services.AT+BLEGATTCCHAR: GATTC discovers characteristics.AT+BLEGATTCRD: GATTC reads characteristics.AT+BLEGATTCWR: GATTC writes characteristics.AT+BLESPPCFG: Query/Set Bluetooth LE SPP parameters.AT+BLESPP: Enter Bluetooth LE SPP mode.AT+BLESECPARAM: Query/Set Bluetooth LE encryption parameters.AT+BLEENC: Initiate Bluetooth LE encryption request.AT+BLEENCRSP: Respond to the pairing request from the peer device.AT+BLEKEYREPLY: Reply the key value to the peer device.AT+BLECONFREPLY: Reply the confirm value to the peer device in the legacy connection stage.AT+BLEENCDEV: Query bonded Bluetooth LE encryption device list.AT+BLEENCCLEAR: Clear Bluetooth LE encryption device list.AT+BLESETKEY: Set Bluetooth LE static pair key.AT+BLEHIDINIT: Bluetooth LE Human Interface Device (HID) profile initialization.AT+BLEHIDKB: Send Bluetooth LE HID keyboard information.AT+BLEHIDMUS: Send Bluetooth LE HID mouse information.AT+BLEHIDCONSUMER: Send Bluetooth LE HID consumer information.AT+BLUFI: Start or Stop BluFi.AT+BLUFINAME: Query/Set BluFi device name.AT+BLEPERIODICDATA: Set Bluetooth LE periodic advertising data.AT+BLEPERIODICSTART: Start Bluetooth LE periodic advertising.AT+BLEPERIODICSTOP: Stop Bluetooth LE periodic advertising.AT+BLESYNCSTART: Start to synchronize with periodic advertising.AT+BLESYNCSTOP: Stop synchronizing with periodic advertising.AT+BLEREADPHY: Query the current transmitter PHY.AT+BLESETPHY: Set the current transmitter PHY. www.espressif.com Page8/9MQTT command AT+MQTTUSERCFG: Set MQTT user configuration AT+MQTTCLIENTID: Set MQTT client ID AT+MQTTUSERNAME: Set MQTT username AT+MQTTPASSWORD: Set MQTT password AT+MQTTCONNCFG: Set configuration of MQTT connection AT+MQTTALPN: Set MQTT Application Layer Protocol Negotiation (ALPN) AT+MQTTCONN: Connect to MQTT Brokers AT+MQTTPUB: Publish MQTT Messages in string AT+MQTTPUBRAW: Publish long MQTT messages AT+MQTTSUB: Subscribe to MQTT topics AT+MQTTUNSUB: Unsubscribe from MQTT topics AT+MQTTCLEAN: Close MQTT connectionsHTTP commandAT+HTTPCLIENT: Send HTTP Client RequestAT+HTTPGETSIZE: Get HTTP Resource SizeAT+HTTPCGET: Get HTTP ResourceAT+HTTPCPOST: Post HTTP data of specified lengthAT+HTTPURLCFG: Set/Get long HTTP URL www.espressif.com Page9/9邮件订阅Espressif Email Notifications乐鑫为注册用户提供电子邮件通知服务，用户可通过乐鑫订阅系统接收技术文档更新、新闻通讯、PCN 等邮件通知。Espressif sends email notifications of technical documentation changes, along with newsletters, PCNs andother valuable information, to subscribed customers only. 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Customers would be considered as having acknowledged the PCN if no response isreceived after 14 calendar days.请反馈至 pcn@espressif.com。Please send feedback to pcn@espressif.com.客户批准/确认信息Customer Approval/Acknowledgement and Remarks客户公司全称：Customer’s Company Name:PCN 评审结果/PCN Review Result：批准/确认Accepted/Acknowledged不批准/Rejected需要分析/Further Analysis Required客户意见/Comment:公司代表人姓名Representative’s Name:公司代表人职责Representative’s Job Title:公司代表人签名Representative’s Signature:日期Date: