Serial Adapter Module for ESP-01


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SKU: IOT-ESP8266-ESP01-ADAPTER Category: Tags: , ,


This is an adapter for easier interfacing with the ESP8266 ESP-01 WiFi modules. ESP8266 ESP-01 are WiFi modules that can be used for wireless communications. They operate at 3.3V for power and require up to 170mA of current.

If you are using the ESP-01 with a 5V MCU, the current requirements are outside what an Arduino or similar MCU can supply directly from their small on-board 3.3V regulator. This adapter can be powered off of 5V-12V and supplies well regulated 3.3V to the ESP-01 socket.

It also provides level shifting for the TX/RX lines which is necessary for the safe operation of this module with a 5V MCU since the I/O of the ESP-01 is not 5V tolerant.


  • Operating voltage : 4.5 ~ 5.5V
  • Operating current : 0 – 240 mA
  • Has built-in 3.3V voltage regulator
  • Has built-in logic voltage level shifter
  • Dimensions : 42 x 25 x 10 mm




Additional information

Weight 6 g
Dimensions 42 × 25 × 12 mm


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