- Stock: 58
- Model: ESP-01 WIFI-module
ESP-01 ESP8266 WiFi Module with USB-to-Serial Interface and Integrated Regulator
ESP8266-based WiFi module for adding wireless connectivity to electronics, automation and control projects. It integrates a CH340G USB-to-serial converter, an LDO regulator and a selector for UART communication or programming mode.
This is a development board that requires configuration and integration with the host system. It should not be considered a universal plug-and-play accessory for every 3D printer: compatibility depends on a suitable UART, compatible electrical levels and firmware prepared to use the module.
Features
- Controller: ESP8266.
- Board input voltage: 4.5-5.5 V.
- Regulation: integrated 3.3 V LDO regulator.
- Logic level: 3.3 V.
- Interface: UART for TTL serial communication.
- USB-to-serial converter: CH340G.
- Specified current: up to 300 mA, depending on the integrated regulator and operating conditions.
- Approximate size: 50 × 14 mm.
Operating modes
The integrated selector lets you choose between UART mode for serial communication and debugging, and PROG mode for programming the module. Check the pinout and the host supply voltage before connecting the board.
Although the board is powered with 4.5-5.5 V, the ESP8266 signals operate at 3.3 V. Do not connect 5 V signals directly to its inputs without confirming that the host circuit and level shifting are suitable.
Use with 3D printers
It can be used in projects based on boards compatible with the module and firmware prepared for WiFi connectivity, such as certain SKR PRO 1.1 setups. Mentioning a specific board does not replace checking the wiring, selected UART, installed firmware and project configuration.
It can also be used with ESP3D when the corresponding firmware is installed and configured and the module is integrated with the printer or controller. The procedure may vary according to the ESP3D version and connected equipment.
Who is it for?
- Projects that need an ESP8266-based WiFi interface.
- Users able to configure UART communication and the module firmware.
- ESP3D or other ESP8266-based expansions.
Who is it not for?
- Users looking for WiFi connectivity without firmware or serial configuration.
- Boards that only provide 5 V signals without suitable level shifting.
- Systems where a compatible free UART has not been confirmed.
For programming or ESP3D use, consult the ESP3D installation documentation and always follow the instructions for the installed version.
