ESP32-GATEWAY Gateway WiFi Ethernet
The Esp32 Gateway device is one of the development board created by Olimex to evaluate the ESP-WROOM-32 module. Based on the ESP32 microcontroller, Olimex ESP32 Gateway features 100Mb Ethernet Interface, Bluetooth LE, WiFi.
Official reference for Olimex Esp32 Gateway can be found here.
The internal flash of the ESP32 module is organized in a single flash area with pages of 4096 bytes each. The flash starts at address 0x00000, but many areas are reserved for Esp32 IDF SDK and Zerynth VM. In particular:
|0x00009000||16Kb||Esp32 NVS area|
|0x0000D000||8Kb||Esp32 OTA data|
|0x0000F000||4Kb||Esp32 PHY data|
|0x00110000||1Mb||Zerynth VM (FOTA)|
|0x00290000||512Kb||Zerynth Bytecode (FOTA)|
|0x00310000||512Kb||Free for user storage|
Microcontroller: Tensilica 32-bit Single-/Dual-core CPU Xtensa LX6
Operating Voltage: 3.3V
Input Voltage: 2.7-5.5V
Digital I/O Pins (DIO): 34
Analog Input Pins (ADC): 6
Flash Memory: 4 MB
SRAM: 520 KB
Clock Speed: 240 Mhz
Wi-Fi: IEEE 802.11 b/g/n/e/i:
- Integrated TR switch, balun, LNA, power amplifier and matching network
- WEP or WPA/WPA2 authentication, or open networks
Power to the Olimex Esp32 Gateway is supplied via the on-board USB Micro B connector or directly via the “VIN” pin. The power source is selected automatically.
The device can operate on an external supply of 2.7 V to 5.5 V. If using more than 5.5 V, the voltage regulator may overheat and damage the device.
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