The ESP-07S WiFi module was developed by Ai-Thinker Technology. The core processor ESP8266 integrates the industry-leading Tensilica L106 ultra-low-power 32-bit micro MCU in a small package with 16-bit Lite mode, clocked at Supports 80 MHz and 160 MHz, supports RTOS, and integrates Wi-Fi MAC/BB/RF/PA/LNA.
The ESP-07S WiFi module supports the standard IEEE802.11 b/g/n protocol, a complete TCP/IP protocol stack. Users can use this module to add networking capabilities to existing devices or to build separate network controllers.
The ESP8266 is a high-performance wireless SOC that offers maximum utility at the lowest cost and unlimited possibilities for embedding WiFi functionality into other systems.

The ESP8266 is a complete and self-contained WiFi network solution that can operate independently or as a slave running on other host MCUs. The ESP8266 is capable of booting directly from an external flash memory when it is powered by an application and is the only application processor in the device. The built-in cache helps improve system performance and reduce memory requirements.
In another case, the ESP8266 is responsible for wireless Internet access. When it comes to the task of the WiFi adapter, it can be added to any micro controller-based design. The connection is simple and easy, just by SPI / SDIO interface or I2C / UART port. Just fine.
The ESP8266's powerful on-chip processing and storage capabilities allow it to integrate sensors and other application-specific devices through the GPIO port, minimizing system resources during minimal up-front development and operation.
| ESP-07S MAIN PARAMETERS - Ai Thinker Wi-Fi Modül | |
| Module Model | ESP-07S |
| Package | SMD16 |
| Size | 17*16*3 mm (±0.2mm) |
| Certification | FCCǃ, CE, IC, REACH, RoHS |
| SPI Flash | Default 32Mbi |
| Interface | UART/GPIO/ADC/PWM |
| IO Port | 9 |
| UART Baud rate | Support 300 ~ 4608000 bps ˈDefault 115200 bps |
| Frequency Range | 2412 ~ 2484MHz |
| Antenna | PCB Antenna |
| Transmit Power | 802.11b: 16±2 dBm (@11Mbps) 802.11g: 14±2 dBm (@54Mbps) 802.11n: 13±2 dBm (@HT20, MCS7) |
| Receiving Sensitivity | Continuous Transmission=>Average˖~71mAˈPeak˖500mA Modem Sleep: ~20mA Light Sleep: ~2mA Deep Sleep: ~0.02mA |
| Security | WEP/WPA-PSK/WPA2-PSK |
| Power Supply | Voltage 3.0V ~ 3.6VˈTypical 3.3VˈCurrent >500mA |
| Operating Temperature | -20 °C ~ 85 °C |
| Storage Environment | -40 °C ~ 85 °C , < 90%RH |