This is a Wemos D1 R2 clone development board with integrated ESP8266 based Wi-Fi enabled microprocessor and 4MB integrated flash memory. The board uses the popular Arduino Uno form factor and a similar pin-out. This means that the board looks & works like an UNO, in most cases. Due to the common form-factor and pin-out similarity many of the UNO shields work well with this board without modification. Note unlike many other clones, this board has an integrated wireless antenna connector to provide greater flexibility and range. Feature:
Arduino UNO form factor
External Antenna Connector
Common CH340G USB to Serial interface (may need driver install)
Micro-USB for power and connectivity
DC connector for power
Digital and analog I/O
Power LED Specification:
Operating Voltage: 3.3V
Digital I/O Pins: 11
Analog Input Pins: 1(Max input: 3.2V)
Clock Speed: 80MHz/160MHz
Warnings: All IOs work at 3.3V Package Included:
1 x WeMos D1 R2 CH340 CH340G WIFI Expansion Module Based ESP8266 Wireless Module for Arduino UNO R3 NodeMcu Development Board
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.