A hardware shopping list for developers wanting to run Java on Raspberry Pi. Covers the recommended Raspberry Pi 4 setup (4 or 8GB RAM, USB-C power, microSD), required peripherals, and a full electronics component list including breadboard, LEDs, sensors (HC-SR04, light sensor), LCD display, shift register, WS2812B LED strip, and components for SPI/I²C/serial protocol examples.
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