ESP-01 ESP8266 Programmer Adapter WiFi Module Arduino IDE, IoT, Tasmota 14

Article description:

ESP-01S ESP8266 Wireless Transceiver Module

Already flashed with the latest Tasmota firmware.

The ESP-01S is a small and powerful WiFi module that allows you to easily integrate your projects into your WiFi network.

The built-in serial interface allows you to program your own IoT projects. Or you can use the numerous example libraries you can find on the Internet.

Bring your projects online. The module can be used very well with Arduino, Raspberry Pi, Tasmota, or many other projects.

Differences between ESP-01 and ESP-01S

The red power LED has been removed - this means the ES-01S has lower consumption

The blue LED is connected to GPIO2 (Active Low) instead of TX

Inputs EN, RST and GPI0 have a pull-up resistor (12 kOhm) and are Set to 3.3 V

New firmware is already preinstalled. With the QIO SPI mode activated, up to 80% higher transmission speed is achieved

ATTENTION: The module and the IOs must be operated with 3.3V.

Operation with 5V voltage damages the module!

Technical data:

Model.: ESP-01S

Wi-Fi Type: IEEE 802.11 b/g/n 2.4GHz

Security protocols: WEP/WPA-PSK/WPA2-PSK

Size: 25 x 14 mm

Weight: 5.4g

Working temperature: -40°C - 125°C

Working current: 80mA

Input voltage: 3.0 - 3.6V (Recommended 3.3V)

Standby power consumption < 1.0mA

Interfaces: UART/HSPI/I2C/I2S/IR Remote Control/GPIO/PWM