Little Bird
Picade PCB - Arduino Compatible with 3W Amp
This is an Arduino-compatible board with integrated 3W stereo amplifier designed for use in arcade projects (like our Picade).It behaves like a key...
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This is an Arduino-compatible board with integrated 3W stereo amplifier designed for use in arcade projects (like our Picade).
It behaves like a keyboard when plugged in via USB and has a default key-mapping (though you can reprogram it using the Arduino IDE). Connections are made using screw terminals for a solid, permanent installation.
It uses the same micro-controller as the Arduino Leonardo (the ATmega32U4) and is pre-installed with the Arduino bootloader and our software.
Features
- Powered by an ATmega32U4 (32KB, 2.5K RAM @ 16MHz)
- 6-pin ISP header for direct programming (also pre-loaded with Arduino bootloader)
- Includes a stereo 3W amplifier (PAM8407) for use with 4Ω speakers
- Appears as a USB HID device (keyboard) to the host
- Screw terminal contacts for four-direction Joystick, 12 buttons, and two speakers
- Reset button
- Mounting holes
- Power, Bootload, TX, and RX LED indicators
Jargon buster
Plain-language definitions for the technical terms used above.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- HID
- Human Interface Device is a USB device class used for keyboards, mice, gamepads and similar controls. If a board supports HID over USB, it can act like an input device to a computer without needing a custom driver.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- ISP
- In electronics, ISP usually means In-System Programming, a way to load firmware onto a microcontroller while it stays on the board (often via an ICSP header), or an Image Signal Processor, hardware that turns raw camera sensor data into usable images and offloads the main CPU. The surrounding context shows which meaning applies.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- RAM
- RAM (random-access memory) is fast, temporary memory a device uses for working data while it is running; in its common volatile form, its contents are lost when power is removed. Some devices offer a mode that applies settings to RAM only, which is handy for testing changes temporarily because they are not stored permanently and disappear at power-off.
- RX
- RX means receive, usually showing data being received by the board. An RX indicator LED can help with troubleshooting USB or serial communication.
- TX
- TX means transmit, usually showing data being sent from the board. A TX indicator LED can help you see when the board is communicating or uploading code.
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