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ESP8266 ESP-12E UART WIFI Wireless Shielding Development Board Suitable for Arduino UNO R3 Circuit Board Module
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Est. delivery by Apr 28 - May 1
XBD Electronics
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Product description
ESP8266 ESP-12E UART WIFI Wireless Shielding Development Board Suitable For Arduino UNO R3 Circuit Board Module
PARAMETERS:
1.The standard pin interface spacing is fully compatible with Arduino
Uno and Mega. (Except for standard size arduino, such as Nano, Mini)
2.Using advanced 3.3V power chip (the same as the power chip of the official CC3000 expansion board), the 3.3V provided in Arduino board is more accurate, and the expansion board does not need additional power supply.
3.Introduce a WiFi module power supply maintenance interface (GND, 3V3, 5V).
4. On board ESP8266-12 industrial stable serial WiFi module, using enhanced PCB antenna, the signalis better.
5. The operation mode of ESP8266-12 industrial stable WiFi module (such as operation mode and upgrade mode) can be switched quickly by dial switch, and serial chip can be integrated to write firmware quickly.
6. Built-in 5V to 3.3V TTL level converter prevents high-voltage Aduino TTL level from harming WiFi module. (General modules are not available)
7. On board ESP8266-12 industrial stable WiFi module has metal shielding cover. and strong anti-interference.
8. All interfaces of industrial-grade stable WiFi module ESP8266-12E on board are introduced with standard spacing, which is convenient for developers to develop in depth.
9. With superimposable design, other modules can be accumulated on it for easy use.
10. On-board four LED display ESP8266 status, respectively, PWR, DFU, AP, STA, operating mode at a glance.
1)The expansion board is developed based on ESP8266-12E module. After connecting the expansion board with Arduino, the expansion board only occupies a set of serial ports (D0, D1) of Arduino, and other I/O ports will not be occupied.
2)On-board 5V to 3V3 power supply conversion IC, without additional power supply.
3)On-board TTL level conversion chip does not require the use of additional level conversion chip.
4)Debug Port can be used for firmware upgrade, ESP8266 debugging and so on. Debug Port's TTL signal is directly connected to ESP8266 and is not controlled by P1/2 dialing.
5)The 4-bit dial switch on the expansion board can be used in the
instructions on the PCB.
5)1.P1/2 bit dialing is used to determine whether the serial port of onboard ESP8266 is connected with the serial port of onboard ESP8266 .
5)2.D0/1 (Arduino serial port) is connected.
P3 Bit Selection Switch for ESP8266 Mode
When P3 is ON, ESP8266 is normal operation mode.
When P3 is OFF, ESP8266 is firmware brush mode (DFU), at which time firmware of ESP8266 can be upgraded.
5)3.P4-bit dialing is the switch of on-board LED in ESP8266 DFU mode. When using, it can be set to ON.
6)On-board ESP-RST switches can be used to reset the status of ESP 8266 (restart).
7)The onboard Maintanance Only interface leads to three interfaces: GND, 3V3, 5V. These three interfaces are only used to detect whether the voltage conversion chip is working properly, and can not be used as power supply to other devices.
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