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Green PCB with micro USB port and pin headers

LORDWORLD

LORDWORLD ESP8266 Expansion Board GPIO 1 Into 2 CP2102 development board

SKU CH-B0CF-MD42P

Expands one ESP-12E GPIO header into two with a CP2102 USB interface for NodeMCU development

  • Expands one GPIO into two pins for flexible wiring
  • CP2102 USB-to-UART chip enables direct serial programming
  • Micro USB interface provides power and data connection
  • Designed for ESP-12E modules to simplify IoT development

ESP8266 GPIO expansion board

This LORDWORLD board splits a single GPIO line on an ESP8266 ESP-12E module into two usable pins. It integrates a CP2102 USB-to-serial chip and a Micro USB connector so the module can be programmed and powered from a computer. Makers and IoT prototypers can use it to add extra sensors or actuators without soldering a custom breakout. The board arrives new and ready for immediate breadboard or header mounting.

CP2102 USB interface adds direct programming

The onboard CP2102 eliminates the need for a separate FTDI adapter when flashing firmware or monitoring serial output. Micro USB supplies both power and data, simplifying the tool chain to a single cable. Developers who require more than two additional GPIOs or a different USB bridge will need a larger breakout or a custom carrier board. Buyers without an ESP-12E module must source one separately because the board only provides the expansion circuitry.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 70% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

Will the CP2102 USB-to-serial chip need firmware updates or replacement over time?

The CP2102 is a mature USB-to-UART bridge; it does not require firmware updates and only needs replacement if the micro USB port or solder joints are physically damaged.

What thermal limit appears first when the ESP8266 runs Wi-Fi continuously at full power?

The ESP8266 itself hits its internal thermal throttle point before the CP2102 or the board's voltage regulator, causing the RF front-end to back off transmit power.

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