Today, we stay in a post-Dick Tracy world, the place you can also make a telephone name along with your fancy wristwatch, and much extra moreover. [akashv44] has gone a less complicated route, designing their very own from scratch with a naked PCB design.
The construct relies across the ESP-12E microcontroller, offering helpful wi-fi connectivity that lets the watch interface with the skin world. The firmware makes queries of NTP servers and Yahoo’s climate API to gather time and climate knowledge for show. It’s additionally able to interacting with Blynk relay modules for controlling different gear, which [akashv44] makes use of with lights and an air conditioner. The watch makes use of a small OLED show and a handful of small surface-mount tactile buttons for management. Energy is courtesy of a small lithium-ion pouch cell, with charging dealt with by a TP4056 battery administration IC.
It’s a easy smartwatch, however nonetheless one which teaches every kind of helpful expertise in embedded growth and design. It’s additionally humorous to suppose how easy it’s to construct. A decade in the past, earlier than the ESP8266 was launched, getting wi-fi connectivity in such a small package deal was a serious engineering problem. Even the Apple Watch didn’t come out till 2015! Meals for thought.
