ESP8266 and WiFi Contrlled Relays – 30 minutes IoT Project

Control 2 relays using ESP8266 module and Optoisolated relay modules. This cheap and usable project is also very simple and easy to build. It takes only about 30 minutes to create this awesome project.

See the complete tutorial on instructables :

Part List

1. ESP8266 module ESP-01
2. Opto-isolated 2 Channel 5V Relay Board
3. SMPS Supply 5V 2A
4. LM2596 DC to DC 3A Step Down Module with Voltage Display – or any other step down voltage regulator to convert 5V to 3.3V for ESP module. Even a cheap IC like LM317 or LM1117 will do.
5. CP2102 USB UART module – or any other 3.3V compatible USB-TTL UART adaptor
6. Jumper wires


802.11 Module Maker Located in Alibaba

Shenzhen Eastwin Trading Ltd..

Shenzhen Eastwin Trading Ltd. is centered on 802.11 Module fab headquartered in Shenzhen city, China. We provide in-depth expert services, which include R&D support, prototype service, technical consultation, material procuring, 802.11 Module producing support, conformal coating, washing, in-circuit test, functional test, burn-in test, ecological test, logistics and after-sales service. We consistently strive to give the highest quality service to our consumers with ingenious alternatives and steady device quality.

We have worked with quite a few well-known customers who focus on sales and design. Our items are mostly utilized in the security and safety, industrial, medical, network, automation, measurement, counter product and other segments. With many years of practical experience, we have gathered a good popularity among customers in the electronic production field for cost-effective prices, abundant resources and timely shipping and delivery. Our fab plants involve neat workshops and state-of-the-art high-speed SMT lines.

We get ISO9001:2000, ISO14001, UL and additionally RoHS qualifications. Nowadays our 802.11 Module ability each day reaches to 1,000 square meters, and 802.11 Modules can easily hit 100million units every month.

We will carry on the managing thought of “Quality superior, Service supreme, Reputation first” to give you the top service for our worldwide customers. We’re ready for becoming your long run partner!

Get Hold of Us

Full name: Alex Ke(Marketing Representative)
Contact Tel: +86-755-23573370-803
Phone: +86-13420963146
Email: [email protected]



MOKOSmart Private Brand Plan

MOKOSmart is a qualified professional designer specialized in the research, development and manufacturing of smart gadgets. We offer a variety of programs for our prospective partners consisting of wholesale program, white-label solution, EMS(Electronics Manufacturing Service) and even ODM program. In a nut-shell, we can offer fully developed products for you to direct sell, and in addition offer you a custom-made service to fit your criteria.

At present, our company has above 200 team members, of which above 20 engineers specialize in tracker wristbands. Our one-stop service comes with design, development, manufacturing, and after-sales service. We now have built a leading-edge production line for tracker wristband business, which is built with excellent manufacturing technology to confirm prime quality.

Now, our products include tracker wristband, WIFI smart plug, Bluetooth beacon, Bluetooth modules, 802.11 Modules, and the like.

Get Hold of Us

Contact page form:
Address: 4F, Building #2, Guanghui Science Park, MinQing Rd, Longhua, Shenzhen City, China 518109


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