The ESP-01S ESP8266 Serial Wi-Fi Transceiver Module is a compact and cost-effective wireless solution designed to add Wi-Fi connectivity to your embedded systems and IoT applications. Built on the powerful ESP8266 chipset, it includes an integrated TCP/IP protocol stack, making it a complete standalone network controller. The 32-bit RISC processor runs at 80 or 160 MHz, offering strong processing capabilities while maintaining low power consumption. With multiple communication interfaces like UART, SPI, I²C, and GPIO, it can easily connect to sensors, actuators, and other peripherals. The module supports IEEE 802.11 b/g/n standards and security protocols (WEP, WPA, WPA2), ensuring reliable wireless communication. Ideal for smart home automation, IoT monitoring, and embedded web servers, the ESP-01S is widely compatible with microcontrollers such as Arduino and STM32. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
High-Performance Processor: L106 32-bit RISC core running at 80/160 MHz.
Integrated Wi-Fi: IEEE 802.11 b/g/n with complete TCP/IP protocol stack.
Versatile Interfaces: Supports UART, SPI, I²C, I²S, and GPIO for various applications.
Low Power Consumption: Optimized for energy-efficient IoT and battery-powered systems.
Built-in Flash Memory: Includes 1Mb external QSPI flash for firmware and data.
Compact Design: Easy integration into compact embedded designs.
Secure Connectivity: Supports WEP, WPA/WPA2 authentication, or open networks.
Onboard LEDs: Power and status indicators for monitoring module activity.
Wide Compatibility: Works with Arduino, STM32, ESP32, and other microcontrollers.
Affordable IoT Solution: Perfect balance of performance, size, and cost for wireless projects.
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Applications:
IoT Projects: Enable Wi-Fi communication for smart home and automation systems.
Wireless Data Logging: Send sensor data to servers or cloud platforms.
Embedded Web Servers: Host web pages or dashboards directly from the module.
Wi-Fi Control Systems: Build remote-controlled devices and wireless relays.
Smart Sensors: Integrate with temperature, humidity, or motion sensors for monitoring.
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| General Specifications |
| Processor | L106 32-bit RISC microprocessor |
| Clock Speed | 80 MHz / 160 MHz |
| Memory | 32 KiB instruction RAM, 80 KiB user-data RAM, 1Mb external flash |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| Security | WEP, WPA/WPA2, or open |
| Interfaces | UART, SPI, I²C (software), I²S, GPIO |
| GPIO Pins | 17 |
| ADC | 10-bit |
| Operating Voltage | 3.3V |
| Power Consumption | Low power (optimized for IoT) |
| LEDs | Power LED, Status LED (GPIO1) |
| Dimensions | 24mm × 14mm × 3mm (approx.) |
| Compatible With | Arduino, ESP32, STM32, Raspberry Pi |
| Applications | IoT, home automation, data logging, embedded Wi-Fi systems |
| Shipment Weight | 0.0025 kg |
| Shipment Dimensions | 3 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
Pinout Description:
- VCC: Power supply (3.3V).
- GND: Ground.
- TX: Transmit data (connected to the status LED).
- RX: Receive data.
- CH_PD: Chip power-down control (active high).
- RST: Reset (active low).
- GPIO0: General-purpose I/O 0.
- GPIO2: General-purpose I/O 2.
Package Includes:
1 x ESP-01S ESP8266 Serial WIFI Wireless Transceiver Module
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