Watch Your Crypto Go to the Moon with CRYPTOiNK!
This device pulls current crypto prices from the web and shows it on an easy-to-read E Ink display.
CRYPTOiNK, created by John Loeffler, uses an E Ink display to provide real-time updates on selected cryptocurrencies. The small 7" x 7" display pulls current data from the web, making up to seven different cryptocurrencies available to the user at a glance. The screen itself is a low-powered Trig-colored display, enabling more detail to be shown with a quick look: a currency will be in red if the 24-hour price is down, for easy differentiation of currencies “in the black” or “in the red.” Documentation found on Loeffler's page includes hardware and software design, as well as information for users on customization and adding and changing displayed currencies.
On the hardware side, a TP4056 charger — with built-in low voltage, over-voltage, and over-current protection circuits—is used to charge a 6000mAh LiPo battery. All components can be seen in the image below. Because the battery does not provide a constant voltage, an MT3608 DC/DC boost module is used to regulate voltage from the Waveshare driver board down to the 3.3V used by the ESP8266 controller and the E Ink display.
CRYPTOiNK’s API is created via ThingSpeak, an IoT analytics platform that allows users to visualize and analyze live data streams in the cloud. You just set up a “ThingHTTP,” which requires a name, HTTP version, parse string, and the URL of a reliable crypto exchange you would like to pull from.
To tie all these components together, .stl files and .h files are also available in the project write-up. As of the latest log, the device is fully assembled and able to hang magnetically from a fridge or other surface to integrate the information into daily life.