ESP-07 WiFi Module (ESP8266)
= Compact SMD Module with Ceramic Antenna and IPEX Connector =
The ESP07 is a versatile WiFi module based on the ESP8266 chip from Espressif . This SMD-16 package module comes equipped with an onboard ceramic antenna and features a U.FL/IPEX connector for an external antenna, providing design flexibility for IoT and smart home projects .
802.11 b/g/n WiFi Supports station, softAP, and station+softAP modes .
Dual Antenna Options - Onboard ceramic antenna + IPEX connector for external antenna .
Core Processor: ESP8266 Tensilica L106 32-bit MCU
Clock Speed: 80 MHz (supports up to 160 MHz)
Flash Memory: 4MB (default)
= Technical Specifications =
| Parameter | Value |
|---|
| -- | -- |
| Supply Voltage | 3.0V - 3.6V |
| Frequency | 2.4 GHz ISM band |
| Protocol | 802.11 b/g/n |
| Package | SMD-16 |
| Dimensions | ~21.2 x 16mm |
Wi-Fi Output Power :
- 802.11b: 16±2 dBm (11 Mbps)
- 802.11g: 14±2 dBm (54 Mbps)
- 802.11n: 13±2 dBm (HT20, MCS7)
= Pin Configuration =
The module features 16 castellated pads with key pins including:
| Pin | Name | Description |
|---|
| -- | -- | -- |
| 5 | VCC | 3.3V Power Input |
| 1 | GND | Ground |
| 13 | TXD | UART Transmit |
| 12 | RXD | UART Receive |
| 11 | GPIO0 | Boot Mode (LOW = Flashing Mode) |
| 7 | CH_PD/EN | Chip Enable (HIGH for normal operation) |
| 6 | RST | Reset (Active LOW) |
Programmable GPIO & SPI Flash - 9+ GPIO pins and SPI interface for peripherals .
Integrated TCP/IP Stack Full networking support, preflashed with AT command firmware .
== Applications ==
- IoT and smart home devices
- Home automation and industrial wireless control
- Wearable electronics and wireless sensor networks
- 3D printer WiFi connectivity (BTT boards)
- Remote monitoring and control systems
Versatile Interface - Supports UART, SPI, I2C, I2S, PWM, and ADC .
Low Power Consumption - Deep sleep current as low as 10 µA .
√ 3.3V logic only - level shifting required for 5V systems
√ AT command support for quick integration
√ SMD package suitable for automated assembly
= Troubleshooting =
Module not responding:
- Verify power supply is 3.0-3.6V with >300mA current capability.
- Check CH_PD/EN is pulled HIGH to 3.3V.
- Ensure GPIO0 is HIGH for normal boot, LOW for flashing mode .
Wi-Fi not connecting:
- Connect to 2.4GHz network only.
- Check antenna connection.
- Verify SSID and password in AT commands.
