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![]() Choose "Yes" then exit the configuration menu.Select "I2C Enable/Disable automatic loading" ( link).Find and select "Advanced Settings" from the menu ( link).Open the Raspberry Pi terminal ( link) and type the following commands: sudo raspi-config Give that article a read if you get lost: link Enable I2C CRYPTOCURRENCY TICKER DESKTOP CODEThe code can be easily modified to fetch any other cryptocurrency available on the APIs, as well as the price data in other currencies (e.g., EUR, GBP).Much of the info for this section was pulled from an article posted on, including extra code to make your text do fun things. Because we couldn't find anything out there–without going through commit histories–we decided to post our own:Īnd so, we've added to our ESP826 Demos Github repository two minimalistic samples with the code needed to fetch Bitcoin data from Coindesk and Coinmarketcap. As most people are using either OLED displays or external Apps to display the data, most code samples were highly convoluted. To get us started, we simply wanted a program that would fetch the data, and print it to the Serial Monitor. CRYPTOCURRENCY TICKER DESKTOP FREEWe were somewhat surprised about the lack of simple examples for getting cryptocurrency data from free API's. we love it! It's the most convenient, inexpensive way to have a microcontroller running code while connected to a Wi-Fi network. What can we say about the ESP8266 that hasn't been said about the wheel, sliced bread, or the iPhone. Not only are these displays small (and bright!), but they're very easy to control over i2c merely having to connect 4 wires to our microcontroller or single-board computer: 2 for power and ground, and 2 for the data and clock lines. Given our main goal of having a device with a small form factor that could sit on our desks, the first choice was to use a 0.96" OLED screen to display the price data. ![]() To build a price tracker for cryptocurrency we simply needed two pieces of hardware: an internet-capable microcontroller to gather the data, and a screen to display it, we tried to find the best solution considering ease of use and cost. CRYPTOCURRENCY TICKER DESKTOP SOFTWARETo make it even easier for those wanting to give the project a try, we'll have a kit available on our site ( ACROBOTIC Industries) when we're done with the design.Īs with all our projects, the software is free and Open Source! How? The hardware Where?Īs we're not the only hodlers out there with a knack for electronic DIY gadgets, we're documenting the parts list and build instructions on this project page for anyone to use. In terms of what's required, we challenged ourselves to use the minimum number of parts, and require no special tools/skills such as soldering. The main goal is to have a dedicated, inexpensive, device that would help us avoid repeatedly checking websites, apps, email, writing scripts, etc., in order to monitor the ups and downs of coin prices. Not to mention that building the device is a great excuse to work on a ESP8266-powered, internet-connected, DIY electronics project for any Maker out there! (bro/sis, do you even IoT?) What? ![]() With the latest craze in the world of cryptocurrency and, as coin hodlers ourselves, we wanted to have a tiny desktop display cycling through the current prices of different coins.Īlthough we can certainly find the same information using apps and websites (for free!), we discovered that having a dedicated device on our desks displaying the data constantly minimized the time we spent on tracking it. ![]()
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