ESP-07 ESP8266 Serial Wifi...
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The ESP-01S is an updated version of the popular ESP-01 module, a compact and powerful Wi-Fi module based on the ESP8266 chip developed by Espressif Systems. It operates at a frequency of 2.4 GHz and supports the 802.11 b/g/n Wi-Fi standard. The module comes equipped with a more stable and robust power management system compared to its predecessor, enhancing its performance and reliability in various applications.
The ESP-01S is an updated version of the popular ESP-01 module, a compact and powerful Wi-Fi module based on the ESP8266 chip developed by Espressif Systems. It operates at a frequency of 2.4 GHz and supports the 802.11 b/g/n Wi-Fi standard. The module comes equipped with a more stable and robust power management system compared to its predecessor, enhancing its performance and reliability in various applications.
Featuring 1 megabyte (MB) of flash memory, the ESP-01S provides ample space for storing programs and data. It offers a simple serial interface for communication, making it easy to integrate with microcontrollers and other devices for Internet of Things (IoT) projects. The module can be programmed using the Arduino IDE or other development environments that support the ESP8266, allowing for the creation of a wide range of applications, from simple home automation projects to more complex IoT solutions.
Differences between ESP-01 and ESP-01S
The ESP-01S differs from the ESP-01 in that it includes 12K pullups on the RST , GPI0, and CH_PD pins which allows the module to stably enter boot mode at power up without the addition of external resistors.
Other changes include 1Mb of flash, the removal of the power and Tx LED and in its place there is a user controllable LED fitted to the GPIO2 pin.
Features:
SKU: HCMODU0242 Module: ESP-01s Device: ESP8266EX module Frequency: 2.4GHz Power: +19.5dBm(802.11b) mode Supported Wifi: 802.11 b/g/n Operating voltage: 3.3V Memory: 1MB Flash Serial interface: SDIO 1.1 / 2.0, SPI, UART
Example USB adapter connection:
Pinout:
VCC (3.3V)
RST (Reset) with 12K pullup
CH_PD (Enable) with 12K pullup
Tx (GPIO1)
Rx (GPIO3)
GPIO0 (flash/program mode) with 12K pullup
GPIO2 / Builtin LED
GND
Arduino IDE Setup Guide available on our support forum here.
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