Description

Feature Products DC 5V DC 7-28V ESP8266 WIFI 8 Channel Relay Module ESP-12F Development Board I. Overview The ESP8266 eight-way relay development board is equipped with ESP-12F WiFi module and supports DC7-28V/5V power supply. 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, large capacity 4M Byte Flash; 2. The power supply mode supports DC7-28V/5V; 3. The onboard WiFi module RST reset button; 4. ESP-12F supports the use of Eclipse/Arduino IDE and other development tools, and provides reference programs under the Arduino development environment; 5. There are 8 5V relays on board, outputting switch signals, suitable for controlling loads whose working voltage is within AC 250V/DC30V; 6. Onboard power indicator and relay indicator. Programming port: ESP8266's GND, RX, TX, 5V are respectively connected to the GND, TX, RX, 5V of the external TTL serial port module. IO0 needs to be connected to GND when downloading, and then disconnect the connection between IO0 and GND after the download is complete; Relay output: NC: Normally closed, the relay is short-connected with COM before the pull-in, and hangs in the air after pull-in; COM: public end; NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed Package Include: 1x DC 5V DC 7-28V ESP8266 WIFI 8 Channel Relay Module ESP-12F Development Board Shipping Policy Item Location Payment Mathord Returns Policy About Feedback Shipping Policy 1. We Ship to Worldwide 2. We ship your orders within 1-2 business days after the payment cleared. 3. Item shipped from China via china Post Airmail, reach most of the countries within 2 to 4 weeks. 4. Delivery time depends on destination and other factors, it may takes up to 20 days. If you don't receive the item after 30 days,please keep in touch with us, we'll investigate and solve the delivery problem. 5. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Item Location ShenZhen Payment Mathord 1. We accept PAYPAL only. 2. Payment must be made within 7 days of auction closing (Unpaid dispute will automatically open when item is not paid in 7 days). 3. PLEASE NOTE: SHIPPING&HANDING DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. 4. Please list your special requests (color, packages, value of declaration, etc.) in the EBAY NOTES SECTION when you make payment Returns Policy 1. Customer satisfaction is our top goal. All products are quality checked. They are new and in good condition when shipped to our customers. If product is defective or damage upon arrival, or wrong product shipped, please keep in touch with us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 2. Please keep in touch with us first if you have anyproblems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 3. We appreciate your Positive Feedback, and will do the same in return. PLEASE DO NOT leave negative feedback without first communication with us. Please allow max 24 HOURS for us to respond About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them!