A Trinket for The Pawn Shop, interacting with an OLED screen and an LED strip, displaying messages and scanning for Bluetooth Low Energy (BLE) devices.
MicroPython is a powerful and user-friendly interpreter for embedded systems, providing interactivity and ease of use for rapid development. The article discusses its advantages, such as the Read, Evaluate, Print, Loop (REPL) interface, and its extensive library support.
A Flasher utility for DIY miners to flash NerdMiner firmware onto various boards, such as LILYGO S3 Dongle, LILYGO T-Display-AMOLED, ESP32-WROOM, LILYGO T-QT, TDisplay v1.14, ESP32-2432S028R, and M5-StampS3. The flashing process should take less than one minute.
Improved version of first ESP32 NerdMiner, an open source project that allows you to try to mine Bitcoin with a small piece of hardware.
Nerd Miners offers Bitcoin lottery miners with plug-and-play functionality for DIY enthusiasts.
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.
```
CodeCell is a tiny, Arduino-compatible module with an ESP32-C3, sensors (light, proximity, optional motion), and USB-C charging. Perfect for robotics, wearables, and IoT projects.
This article details a DIY presence sensor project inspired by the Everything Presence Lite kit, utilizing a millimeter wave sensor and a BME680 environmental sensor for accurate motion and heart rate detection.
Explore Seeed Studio's XIAO series, featuring tiny, powerful development boards. Choose from various models like XIAO SAMD21, XIAO ESP32C3, and more. Accessories include sensors, displays, and starter kits. Shop now for discounts and free shipping.
Learn how to use timer interrupts (timers and event handling) with the ESP32 and ESP8266 programmed with MicroPython. Timer interrupts allow you to schedule and execute specific tasks at regular intervals or after a designated time delay.
