ESP8266 Serial Port to WiFi Transceiver Wireless Module

Date:2023-10-12 Views:

SKU: LC-WM-WiFi-8266

Overview
LC ESP8266 ESP-01 module uses the new original ESP8266EX ultra-low power consumption 32-bit WiFi chip and a large-capacity 1M byte Flash memory chip, which can store more of your fantastic ideas. It has perfect peripheral circuits and enhanced impedance matching. The signal output is stronger, and it has excellent stability and anti-interference ability. It is a good choice for Internet of Things development.

Product parameter

1.Onboard ESP8266EX 32-bit MCU and 1M byte Flash chip

2.Support wireless 802.11 b/g/n standard

3.Built-in TCP/IP protocol stack, supports multiple TCP Client connections

4.Support three working modes: STA/AP/STA+AP

5.Support Smartconfig function

6.Onboard power and data transmission indicators

7.Improve simple and efficient AT commands to make your development easier

8.Working voltage: 3.3V single power supply

Interface introduction

No.	Pin name	Description
1	TXD	Serial port sending
2	GND	Power ground
3	EN	Enable end, high level working
4	IO2	①It must be high level when powering on, and hardware pull-down is prohibited. ②The internal default is high
5	RST	External Reset signal, low level reset, high level working (pull-up by default)
6	IO0	①Pull-up: Flash Boot, working mode (pull-up by default) ②Pull-down: UART Download, pull-down mode
7	3V3	3.3V power+
8	RXD	Serial port receive

Use description
1.Prepare a USB to TTL serial port module (such as the CH340 module), connect 3.3V, TX, RX, and GND to the 3V3, RX, TX, and GND of the ESP-01 module respectively, then use a 10K resistor to pull up the EN pin of ESP-01 to 3.3V (or directly connect it to 3.3V). Open the computer debugging assistant on the computer and you can send AT commands to debug the ESP8266. The default baud rate is 115200, as follows:

2.The module supports secondary development, and you can burn the firmware generated by compiling the source code yourself. IO0 needs to be grounded when burning. After the burning is completed, disconnect IO0 and GND and power on again.

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ESP8266 Serial Port to WiFi Transceiver Wireless Module