AC/DC power ESP8266 WIFI single-channel relay module ESP-12F development board F For Sale
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AC/DC power ESP8266 WIFI single-channel relay module ESP-12F development board F:
$6.55
I. Overview
The ESP8266 single-channel relay development board is equipped with ESP-12F WiFi module, all I/O ports are led out, and it supports AC90-250V/DC7-12V/USB 5V and other power supply methods.Provide Arduino development environment reference code, suitable for ESP8266 secondary development learning, smart home wireless control and other occasions.
II. Features
1. On-board mature and stable ESP-12F WiFi module with large capacity 4M Byte Flash;
2. The I/O port of the WiFi module and the UART program download port are all led out to facilitate secondary development;
3. Onboard AC-DC switching power supply module, power supply mode supports AC90-250V/DC7-12V/USB5V;
4. The onboard WiFi module RST reset button;
5. ESP-12F supports development tools such as Eclipse/Arduino IDE, and provides reference programs under the Arduino development environment;
6. Onboard 1 5V relay, output switch signal, suitable for controlling loads with working voltage within AC 250V/DC30V;
7. On-board power indicator, 1 programmable LED and relay indicator.III.hardware introduction and description
1. Board size: 80*50mm
Weight: 36g1. L, N: AC90-250V power supply;
2. AC90-250V to DC5V switching power supply (do not touch it directly with your hands when using AC power supply!!!);
3. VCC, GND: DC7-12V power supply;
4. Micro USB: DC5V USB power supply;
Note: AC90-250V, DC7-12V, DC5V USB can choose one of three power supply modes.
5. 6X6mm button: ESP8266 reset button;
6. UART program download port: ESP8266\'s GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5V of the external TTL serial port module. IO0 must be connected to GND when downloading, and then disconnect the IO0 and GND after downloadconnection;
7. GPIO pin header leads to the port;
8. Relay output terminal:
NC: Normally closed, the relay is short-connected with COM before it is closed, and it is suspended after being closed;
COM: public end;
NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed.
9. Power indicator LED;
10. Programmable LED;
11. Relay indicator LED: lights up when it is closed.3. Introduction to GPIO port
序号
名称
功能说明
序号
名称
功能说明
1
GND
电源地
13
IO10
GPIO10
2
Relay
14
MISO
从机输出主机输入
3
IO2
GPIO2; UART1_TXD
15
IO13
GPIO13; HSPI_MOSI; UART0_CTS
4
IO4
GPIO4
16
IO14
GPIO14; HSPI_CLK
5
RX
UART0_RXD; GPIO3
17
ADC
6
3V3
3.3V电源
18
3V3
3.3V电源
7
SCLK
时钟
19
MOSI
主机输出从机输入
8
IO15
GPIO15; MTDO; HSPICS; UART0_RTS
20
IO9
GPIO9
9
IO0
GPIO0
21
CS0
片选
10
IO5
GPIO5
22
IO12
GPIO12; HSPI_MISO
11
TX
UART0_TXD; GPIO1
23
IO16
GPIO16
12
5V
5V电源
24
GND
电源地
IV. Package Include:1 x AC/DC power ESP8266 WIFI single-channel relay module ESP-12F development board
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3. Any non-received items caused by invalid address registered on PayPal are not in our full refund or replacement policy. Shipping fee has including the local handing and packaging fee.
4. All the items will be shipping within 1-2 working days after receiving the payment, except some holidays.
5. We will not be responsible for any custom delay or tax, because transit time is highly depended and provided by postal Service.
6. If you have any problem, please contact us via message, we will reply message within 1-2 working days, please wait for you can\'t receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.
We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money. - If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
- If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
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