If you take a deep look at the D1 Wi-Fi board, you will see that it is different from the claimed to be new version WeMos D1 R2. That is because the latter (D1 R2) has a ESP8266-12F (Not 12E) Wi-Fi ...

[Igor] has built his own ESP8266-based smartwatch, ... The design uses the ESP-12E module and features an OLED display, LEDs, tactile switches and an FT232R USB/UART interface.

Since the ESP8266 pops up as an Access Point that client ... Toy Hacks Tagged ESP-12E, ESP8266, ... Local RC friend is building small forklifter around my module to show off his skills to ...

“In this video, I will show you how to make a DIY WiFi Smartwatch using ESP8266 ESP-12E module for under $20. The module has an inbuilt WiFi module which allows the watch to connect to the internet.