Description

Visit store Items for sale About us Product Details Features: The Esp8266 four-way 30A relay development board is equipped with an esp-12f WiFi module, the I / O ports are all led, and it supports dc7-28v / 5V power supply mode. It is suitable for esp8266 secondary development and learning, smart home wireless control and other occasions. 1. Mature and stable esp-12f WiFi module on board, large capacity 4m Byte Flash. 2. The WiFi module I / O port and UART program download port are all led,It is suitable for secondary development. One 3. The power supply mode supports dc7-28v / 5V. 4. Integrated WiFi module RST Reset button and a programmable key. 5. Esp-12f supports the use of eclipse / Arduino LDE and other developers Provides the reference program in the Arduino development environment. 6. Onboard 5V / 30A 4-way relay, output switch signal, suitable for control.Control the load whose working voltage is Within AC 250V / DC 30V. 7. On-board power indicator, 1 programmable led and relay indicator. 8. Board size: 122.5x87mm Weight: 160g GND, Rx, TX and 5V of esp8266 record and write port are respectively connected with GND, TX, RX and 5V of external TTL serial port module. When downloading, 00 needs to be connected with GND, and then disconnect 00 from GND after downloading. NC relay output: normally closed end, the relay is shorted to com before closing and suspended after closing. COM: public end. No: normal start, the relay is suspended before closing and will short to com after closing. Payment Method Shipping Policy Feedback Payment Method Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund. 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.