ESP8266 ESP-01 Serial to Wi-Fi Module USB Programmer


  • Easiest way to program the fantastic ESP8266 ESP-01 module
  • Includes switch for setting Programming or Normal (Serial UART) mode
  • Built-in CH340 USB to Serial UART adapter and Micro-USB connector (Plug and Play)
  • Built-in auto-reset for running application immediately after programming; 5V USB-TTL compatible



Programming an ESP-01 (or any other ESP8266 variant) can be a bit tricky, starting with a significant amount of wiring, and finishing with a button-mashing challenge to get it to boot into the correct mode. This handy little programmer makes the process of getting your code into the ESP8266 onboard the ESP-01 much easier. Simply plug the module into the 2×4 header, set the switch to “PROG” and you’re ready to load your code.

The ESP8266 Serial-to-WiFi adapter created by Espressif has seen a wide adoption as a cost-effective solution for IoT and WiFi-capable devices. This tiny-sized System On a Chip (SoC) includes an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) as well as a full TCP/IP stack with DNS. Because the ESP8266 comes only in a Surface-Mount package, a few different vendors have developed modules labeled ESP-NN where NN are numbers ranging from 01 to 13 (at the time of this writing). The first module, the ESP-01, uses a compact form factor that includes an 8-pin header that can be connected to different devices including a Serial programmer. The board in this listing makes it easy (plug-and-play) to program the ESP8266 onboard the ESP-01


  • Interface: USB-A connector plugs right into your PC’s USB port
  • Operating Voltage: 4.5~5.5V (Onboard 3.3V 350mA LDO Regulator)
  • USB to Serial: CH340G
  • 5V USB-TTL compatible
  • Built-in auto-reset for straight-forward programming
  • Built-in switch for setting Programming or Normal (Serial UART) mode
  • 23mm×15mm (0.9″×0.6″) board size

Additional information

Product Dimensions

1 x 0.2 x 0.5 inches

Item Weight

0.81 ounces



Item model number


Customer Reviews

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Best Sellers Rank

#945 in Computer Networking Transceivers

Date First Available

November 14, 2016


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