ESP-12F Development Board ESP8266 Wifi 4 Channel 5V 30A Smart Relay Module
$ 7.26
Description
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. Contact us Return Policy Feedback Contact us For anything problem about product, price, shipping or order status, pleasecontact us via eBay message.Just contact us using the "Ask the seller a question" link on eBay. We expect positive feedback and 5 scores DSR from you. Return Policy We believe our items are so outstanding. We are convinced you will be happy with your Purchase. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund to you after the returned item arrived at our warehouse. Please include your eBay ID and item number with any email requests. Feedback * When you satisfied with our product and services please leave us positive feedback. * If you have got the package, please confirm "Delivery on time" For us. * If a problem occurs, contact us immediately with any email request. * Just contact us using the " Ask the seller a question" link on eBay. Your Satisfaction is our Priority. Our goal is to make all our customers as happy as possible while shopping with us.
