Track Bitcoin prices automatically with an ESP32 and an OLED display using MicroPython or Arduino.
/u/BesBesCat writes:
```
JSONVar getBTC() {
String serverPath = "http://api.coindesk.com/v1/bpi/currentprice.json";
jsonBuffer = httpGETRequest(serverPath.c_str());
JSONVar myObject = JSON.parse(jsonBuffer);
return myObject;
}
// Use Coindesk's API instead.
```
/u/BesBesCat writes:
```
JSONVar getBTC() {
String serverPath = "http://api.coindesk.com/v1/bpi/currentprice.json";
jsonBuffer = httpGETRequest(serverPath.c_str());
JSONVar myObject = JSON.parse(jsonBuffer);
return myObject;
}
// Use Coindesk's API instead.
```
Arduino Alvik: A Cross-Discipline Tool for Robotics and Programming
* Easy programming: The Alvik is powered by the versatile Nano ESP32, which streamlines the learning curve in robotics with its comprehensive programming suite that includes MicroPython and Arduino language.
* Robotic potential: The Alvik comes with multiple integrated sensors, including a Time of Flight, RGB color and line-following array, 6-axis gyroscope and accelerometer, and touchable buttons. This allows users to tackle a range of innovative, real-world projects.
* Design flexibility: The Alvik features LEGO Technic connectors, allowing users to personalize the robot and expand its capabilities. It also has M3 screw connectors for custom 3D or laser-cutter designs.
* Connectivity: The Alvik has Wi-Fi and Bluetooth LE connectivity, making it easy to connect to other devices.
* Easy programming: The Alvik is powered by the versatile Nano ESP32, which streamlines the learning curve in robotics with its comprehensive programming suite that includes MicroPython and Arduino language.
* Robotic potential: The Alvik comes with multiple integrated sensors, including a Time of Flight, RGB color and line-following array, 6-axis gyroscope and accelerometer, and touchable buttons. This allows users to tackle a range of innovative, real-world projects.
* Design flexibility: The Alvik features LEGO Technic connectors, allowing users to personalize the robot and expand its capabilities. It also has M3 screw connectors for custom 3D or laser-cutter designs.
* Connectivity: The Alvik has Wi-Fi and Bluetooth LE connectivity, making it easy to connect to other devices.
MicroPython, a Python interpreter for microcontrollers, has released version 1.23 with several improvements. Notably, it now supports creating custom USB devices on multiple levels and has received improvements for OpenAMP, an inter-core communication protocol.
