2pcs Esp8266 Esp-01 USB Adapter Programmer + 5pcs ESP8266 ESP-01S WiFi Module 4MB Wireless Serial Transceiver

CH340G Programmer USB to ESP8266 ESP-01s Wifi Adapter Module Features: ESP-01S Programmer USB to ESP-01 adapter module has USB to TTL driver chip CH340G onboard, so you can easily use your computer to do ESP-01 functional debugging. It is a great programmer for the ESP-01/ESP-01S. It's very easy to just plug it in and send AT commands, or flip the switch to program and upload a sketch from Arduino IDE. Also you don't need a separate 3.3V power supply to power the ESP-01. (Please make sure that you set EPS-01/ESP-01S wifi module correctly in the female header when you plug it. ) Spec: Working voltage: 4.5V - 5.5V (On-board 3.3v LDO Regulator) Working current: 300mA(LDO regulator can supply) Selectable working mode: There are two working mode that you can choose via the toggle switch onboard. PROG side is for firmware programming, while UART side is for serial TTL debugging by AT commands. USB to serial TTL chip: CH340G Logic level: 3.3V Applications: Home automation, Sensor networks, Industrial wireless control etc. ESP8266 ESP-01S 4MB Serial WIFI Wireless Transceiver Module Feature: This is WiFi serial transceiver module, based on ESP8266 SoC. The SOC has Integrated TCP/IP protocol stack. ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Spec: 802.11 b/g/n LWIP agreement Support 3 modes: AP, STA, AP + STA 4MB Flash: XMC0H32BHIG/XM25QH32CJIG by random

• ESP8266 ESP-01S serial WiFi wireless transceiver module used 4MB Flash, not 1MB flash
• USB Programmer selectable working mode: On-board toggle switch. UART side for serial TTL debugging by AT commands, PROG for firmware programming
• Programmer USB to serial TTL chip: CH340G, please check if your computer has installed the driver before use it
• ESP-01 serial wifi module can be directly plugged into the yellow pin header of the USB programmer module without any connection wires
• What you will get: 5pc ESP-01S 4MB wifi module + 2pc USB programmer ESP-01S adapter module