ESP-07 ESP8266 WiFi UART to Wireless Transparent Module with Ceramic & External Antenna
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Ai-Thinker ESP-07 ESP8266 WiFi UART Module | Industrial-Grade UART to WiFi Transparent Transmission Module with Ceramic and External Antenna Support
The Ai-Thinker ESP-07 is an industrial-grade ESP8266 WiFi module designed for UART-to-WiFi transparent data transmission — the workhorse of MCU-to-cloud connectivity in embedded systems and IoT applications. Integrates the ESP8266 SoC with onboard TCP/IP stack, both ceramic antenna and external antenna interface, enabling reliable wireless communication across the full range of indoor and outdoor IoT use cases.
Supports AT command control for rapid integration without custom firmware — paste AT commands over UART and the module handles the WiFi connection, TCP/IP stack, and bidirectional data transmission transparently. For deeper customisation, the ESP8266 SoC supports secondary development via the Arduino IDE, ESP-IDF, or Espressif's RTOS SDK. Multiple interfaces (UART / GPIO / ADC / PWM) and high-speed serial communication up to 4 Mbps handle the throughput requirements of professional industrial automation and IoT sensor designs.
Typical Applications
- Industrial automation — sensor data uplink, remote PLC monitoring, machine-to-cloud telemetry.
- Smart home appliances — WiFi-enabled controllers, smart switches, environment sensors.
- IoT prototyping — rapid product development with AT-command integration before custom firmware.
- Embedded systems WiFi retrofit — adding WiFi connectivity to existing UART-based equipment.
- Data acquisition systems — multi-sensor field deployments with cloud upload.
ESP-07 ESP8266 Module Specifications
| Parameter | Specification |
|---|---|
| Model | ESP-07 |
| Brand | Ai-Thinker |
| WiFi Standard | IEEE 802.11 b/g/n |
| Operating Frequency | 2.4 GHz (2412–2484 MHz) |
| Flash Memory | 8 Mbit |
| Interfaces | UART / GPIO / ADC / PWM |
| UART Max Speed | 4 Mbps |
| Antenna Type | Ceramic antenna + external antenna interface (not simultaneous) |
| Operating Voltage | 3.0–3.6V (typical 3.3V) |
| Control Modes | AT commands + secondary development (Arduino / ESP-IDF / RTOS SDK) |
| Package | Compact SMD module |
| Condition | Brand New |
FAQ — ESP-07 WiFi Module
Q: Ceramic vs external antenna — which to use?
A: Ceramic antenna is integrated and works for short-range applications (10-30m indoor). External antenna connector enables higher-gain antennas for extended range (50-100m+ depending on antenna). Only one antenna can be active at a time — select via the on-module antenna switch resistor configuration.
Q: Is ESP8266 still supported in 2026?
A: Yes — despite ESP32 (and ESP32-S3, ESP32-C3) being newer, ESP8266 remains widely deployed for cost-sensitive WiFi-only applications. Espressif continues to maintain the SDK. Ra-01H stays in production for retrofit and new low-cost designs.
Q: What's the difference between ESP-07 and ESP-12 / ESP-01?
A: ESP-07 has external antenna connector + ceramic antenna, ESP-12 has PCB antenna only, ESP-01 has a simpler pinout with fewer GPIOs exposed. For applications needing range flexibility, ESP-07 is the most versatile.
Q: Bulk pricing for production deployments?
A: Yes — email contact@lys-sz.com with your quantity for tier pricing on ESP-07 modules.
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System integrators stocking ESP-07 modules by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
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