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Ai Thinker ESP-07S ESP8266 Serial WiFi Module
Add reliable, compact WiFi connectivity to your embedded projects with the Ai Thinker ESP-07S. Built around the proven ESP8266 chipset, this enhanced serial WiFi module features an improved ceramic antenna with optional U.FL (IPEX) external antenna connector, metal RF shielding, and 4MB flash memory - making it ideal for IoT devices, smart home systems, and wireless sensor networks where stable connectivity and compact form factor are critical. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module | ESP-07S (Enhanced version of ESP-07) |
| Manufacturer | Ai-Thinker |
| Core Chipset | ESP8266EX |
| Processor | Tensilica L106 32-bit RISC, 80/160 MHz |
| Flash Memory | 4MB (32Mbit) SPI Flash |
| WiFi Standard | IEEE 802.11 b/g/n (2.4 GHz) |
| WiFi Modes | Station, SoftAP, Station + SoftAP |
| Security Protocols | WPA/WPA2-PSK, WEP |
| Antenna | Onboard ceramic antenna + U.FL (IPEX) connector for external antenna |
| GPIO Pins | 9 GPIOs (directly accessible via castellated pads) |
| Interfaces | UART, SPI, I2C, PWM, ADC (1-channel, 10-bit) |
| UART Baud Rate | Default 115200 bps (configurable up to 4608000 bps) |
| Operating Voltage | 3.0V - 3.6V (3.3V typical) |
| Operating Current | ~80mA average (transmitting peak ~170mA) |
| Deep Sleep Current | ~20uA |
| Output Power | +20 dBm (802.11b mode) |
| Operating Temperature | -40 degreesC to +85 degreesC (industrial grade) |
| Module Dimensions | 17mm x 16mm x 3mm (approx.) |
| Package Type | SMD with castellated edge pads and metal RF shield |
| Firmware | Ships with AT command firmware (supports Arduino IDE, MicroPython, NodeMCU/Lua, ESP-IDF) |
| Certifications | FCC, CE, RoHS |
| Type | WiFi Module / IoT Component |
| Origin | Original Ai-Thinker / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Enhanced ESP-07 Design: The ESP-07S is the improved successor to the ESP-07, featuring better RF performance, upgraded 4MB flash (vs. 512KB in original), and refined pin layout for easier PCB integration
- Dual Antenna Options: Onboard ceramic antenna for compact deployments plus U.FL (IPEX) connector for attaching an external antenna when extended range is needed - switch between them effortlessly
- Metal RF Shielding: Full metal shield enclosure minimizes electromagnetic interference, ensuring stable wireless performance even in electrically noisy environments
- 4MB Flash Memory: Generous 4MB SPI flash accommodates complex firmware, OTA updates, file systems (SPIFFS/LittleFS), and data logging without running out of space
- Ultra-Compact Form Factor: At just 17mm x 16mm, the ESP-07S fits into space-constrained designs - perfect for wearables, miniature sensors, and embedded products
- Industrial Temperature Range: Rated from -40 degreesC to +85 degreesC, suitable for outdoor installations, industrial monitoring, and harsh environment deployments
- Low Power Modes: Deep sleep current of ~20uA enables battery-powered applications with months of standby life on a single charge
- Castellated Edge Pads: SMD-friendly castellated pads allow direct soldering to carrier PCBs for production-grade assemblies - no through-hole headers required
- Full TCP/IP Stack: Integrated networking stack supports TCP, UDP, HTTP, MQTT, and more - connect to cloud platforms without an external MCU
- Multi-Platform Compatibility: Program using Arduino IDE, MicroPython, NodeMCU Lua, ESP-IDF, or use AT commands for UART-based control from any microcontroller
Why Choose the ESP-07S?
- 100% Authentic Ai-
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Ai Thinker ESP-07S ESP8266 Serial WiFi Module Online in India
Purchase the Ai Thinker ESP-07S ESP8266 Serial WiFi Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Ai Thinker ESP-07S ESP8266 Serial WiFi Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Ai Thinker ESP-07S ESP8266 Serial WiFi Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Ai Thinker ESP-07S ESP8266 Serial WiFi Module
Add reliable, compact WiFi connectivity to your embedded projects with the Ai Thinker ESP-07S. Built around the proven ESP8266 chipset, this enhanced serial WiFi module features an improved ceramic antenna with optional U.FL (IPEX) external antenna connector, metal RF shielding, and 4MB flash memory - making it ideal for IoT devices, smart home systems, and wireless sensor networks where stable connectivity and compact form factor are critical. Available now from The Engineer Store, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module | ESP-07S (Enhanced version of ESP-07) |
| Manufacturer | Ai-Thinker |
| Core Chipset | ESP8266EX |
| Processor | Tensilica L106 32-bit RISC, 80/160 MHz |
| Flash Memory | 4MB (32Mbit) SPI Flash |
| WiFi Standard | IEEE 802.11 b/g/n (2.4 GHz) |
| WiFi Modes | Station, SoftAP, Station + SoftAP |
| Security Protocols | WPA/WPA2-PSK, WEP |
| Antenna | Onboard ceramic antenna + U.FL (IPEX) connector for external antenna |
| GPIO Pins | 9 GPIOs (directly accessible via castellated pads) |
| Interfaces | UART, SPI, I2C, PWM, ADC (1-channel, 10-bit) |
| UART Baud Rate | Default 115200 bps (configurable up to 4608000 bps) |
| Operating Voltage | 3.0V - 3.6V (3.3V typical) |
| Operating Current | ~80mA average (transmitting peak ~170mA) |
| Deep Sleep Current | ~20uA |
| Output Power | +20 dBm (802.11b mode) |
| Operating Temperature | -40 degreesC to +85 degreesC (industrial grade) |
| Module Dimensions | 17mm x 16mm x 3mm (approx.) |
| Package Type | SMD with castellated edge pads and metal RF shield |
| Firmware | Ships with AT command firmware (supports Arduino IDE, MicroPython, NodeMCU/Lua, ESP-IDF) |
| Certifications | FCC, CE, RoHS |
| Type | WiFi Module / IoT Component |
| Origin | Original Ai-Thinker / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Enhanced ESP-07 Design: The ESP-07S is the improved successor to the ESP-07, featuring better RF performance, upgraded 4MB flash (vs. 512KB in original), and refined pin layout for easier PCB integration
- Dual Antenna Options: Onboard ceramic antenna for compact deployments plus U.FL (IPEX) connector for attaching an external antenna when extended range is needed - switch between them effortlessly
- Metal RF Shielding: Full metal shield enclosure minimizes electromagnetic interference, ensuring stable wireless performance even in electrically noisy environments
- 4MB Flash Memory: Generous 4MB SPI flash accommodates complex firmware, OTA updates, file systems (SPIFFS/LittleFS), and data logging without running out of space
- Ultra-Compact Form Factor: At just 17mm x 16mm, the ESP-07S fits into space-constrained designs - perfect for wearables, miniature sensors, and embedded products
- Industrial Temperature Range: Rated from -40 degreesC to +85 degreesC, suitable for outdoor installations, industrial monitoring, and harsh environment deployments
- Low Power Modes: Deep sleep current of ~20uA enables battery-powered applications with months of standby life on a single charge
- Castellated Edge Pads: SMD-friendly castellated pads allow direct soldering to carrier PCBs for production-grade assemblies - no through-hole headers required
- Full TCP/IP Stack: Integrated networking stack supports TCP, UDP, HTTP, MQTT, and more - connect to cloud platforms without an external MCU
- Multi-Platform Compatibility: Program using Arduino IDE, MicroPython, NodeMCU Lua, ESP-IDF, or use AT commands for UART-based control from any microcontroller
Why Choose the ESP-07S?
- 100% Authentic Ai-
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Ai Thinker ESP-07S ESP8266 Serial WiFi Module Online in India
Purchase the Ai Thinker ESP-07S ESP8266 Serial WiFi Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Ai Thinker ESP-07S ESP8266 Serial WiFi Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Ai Thinker ESP-07S ESP8266 Serial WiFi Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.