dustsignal / bitcoin-ticker-esp32

A Physical Bitcoin Ticker. For use with Arduino ESP32 board and I2C OLED Display.

Bitcoin Ticker

NOT FOR COMMERCIAL USE Please reach out to me if you'd like to use it commercially. I am willing to come to an agreement.

Bitcoin Ticker is Arduino code for ESP32 boards. This ticker displays the price of Bitcoin/USD and idicates whether the crypto currency went up or down. The price data comes from the CoinMarketCap API.

(FYI - there are affliliate links here to hardware you might need.)

Hardware

• 0.96 Inch OLED Module 12864 128x64 Yellow Blue SSD1306 Driver I2C IIC Serial Self-Luminous Display Board
• MELIFE ESP32 ESP-32S Development Board

Wiring Diagram

Installation

Connect your ESP32 board to your computer and open bitcoinTicker.ino with the Arduino IDE.

In Tools > Board select DOIT ESP32 DEVKIT V1.

Select the correct port that your ESP32 is plugged into via Tools > Port. If your board isn't showing up, you might need to install some drivers. A Google Search for ESP32 Drivers should give you what you need.

Hit the Verify button. Install any necessary libraries via Tools > Manage Libraries. Below is the list of libraries I used in this project. You should be able to find them pretty quick by typing these into the search bar. All libraries are found in the Arduino Library Manger(Tools > Manage Libraries.) No special installation is needed outside of their library.

Libraries Used:

• Adafruit_SSD1306 (For the OLED Display)
• WiFi (For ESP32 onboard WiFi)
• Wire
• HTTPClient (To make requests to CoinMarketCap)
• NTPClinet (Used to get the time for "Last Updated")
• WiFiUdp (Used to get the time for "Last Updated")
• ArduinoJson (Used to process JSON data retreived from CoinMarketCap)

Once everything is verified successfully, hit the Upload button. If your OLED is wired up correctly, you should see the screen displaying that it's connecting to your network, then it will show the ticker.

I am using the MELIFE ESP32 ESP-32S Development Board from Amazon. They're usually priced around $15 for two boards.

Usage

Plug Micro-USB into the Arduino and everything should boot up successfully in less than 10 seconds.

Support You

Whatever you need; questions answered, requests, bugs; make an Issue. I'll get to them as soon as I can.

Support Me

Support me with some crypto on Coinbase! - @SonBrooks

Or buy me a coffee - https://www.buymeacoffee.com/SonBrooks