Details

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BUY ESP8266EX https://www.utsource.net/itm/p/8406833.html

Parameter	Description
Chip Name	ESP8266EX
Operating Voltage	2.5V to 3.6V
Interface	SPI, UART, I2C
Wi-Fi Standard	IEEE 802.11 b/g/n
Frequency	2.4 GHz
Output Power	Up to 20.5 dBm
Sleep Current	< 10 uA (in modem-sleep mode)
Flash Memory	Up to 16 MB (external)
RAM	64 KB instruction, 96 KB data
GPIO Pins	17 usable GPIO pins
Temperature Range	-40°C to +125°C
Package Type	QFN32

Instructions for Using ESP8266EX

1. Power Supply Setup

   • Ensure the operating voltage is within the range of 2.5V to 3.6V.
   • Use a stable power supply to avoid unexpected resets or malfunctions.

2. Connecting Interfaces

   • Connect UART for programming and debugging purposes.
   • SPI and I2C can be used for connecting external devices like sensors or displays.

3. Wi-Fi Configuration

   • Configure Wi-Fi settings using AT commands or by writing code in environments like Arduino IDE.
   • Ensure proper antenna connection for optimal performance.

4. Programming

   • Use development platforms such as Arduino IDE, ESP-IDF, or Lua-based NodeMCU.
   • Flash firmware using tools like esptool.py.

5. Power Management

   • Utilize sleep modes (light-sleep, deep-sleep) to reduce power consumption.
   • Configure GPIOs appropriately during sleep modes to prevent leakage currents.

6. GPIO Usage

   • Be cautious with GPIO pin configurations as some may have special functions (e.g., boot configuration).
   • Avoid pulling GPIOs low during boot unless necessary for functionality.

7. Heat Dissipation

   • For applications where the ESP8266EX might operate at higher temperatures, ensure adequate heat dissipation mechanisms are in place.

8. Debugging

   • Use UART for debugging outputs; configure baud rates correctly for clear communication.
   • Monitor logs and outputs to troubleshoot connectivity issues or application errors.

By following these guidelines, you can effectively integrate and utilize the ESP8266EX in various IoT and wireless applications.

(For reference only)