Development Boards

US$15.62
The MonkMakes Speaker for micro:bit is a neat little amplified speaker that connects to your micro:bit using alligator clips. Features: Amplified output. LED ‘power on’ indicator. Reverse polarity protection.
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US$16.96
The LilyTiny is a tiny little LilyPad board designed to add flashy functionality to your project without taking up a lot of room. Even though it’s as small as some of the LilyPad sensors, this board actually has an ATtiny microcontroller on it so it’s actually pretty powerful for its small size! 
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US$2.50
LilyPad Arduino is about making technology wearable. This particular module offers you a Tri-Color LED on a sewable board that you can attach onto your favourite clothing.
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US$3.28
LilyPad I/O Buzzer This is a small buzzer for the LilyPad system. It uses two I/O pins on the LilyPad main board to create different noises based on the...
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US$5.68
The MonkMakes RGB LED for micro:bit provides a colourful add-on to your micro:bit. Connect it up with alligator clips and then use the three outputs of your micro:bit to control the red, green and blue channels to mix up any colour of light you want.
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US$15.95
The MonkMakes Sensor Board for micro:bit allows you to sense sound level, temperature and light level. Features: 3V and GND connections can be made from either side and allow you to power a second board such as the MonkMakes Relay Board or MonkMakes Speaker. LED ‘power on’ indicator. Reverse polarity protection. All three sensors are analog and can be connected to pins P0, P1 and P2 using alligator clips.
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US$69.94
ElecFreaks Micro:bit Tinker Kit (Without Micro:bit Board) is a set of accessory for micro:bit, which enables you to connect all kinds of modules easily without a group of messy breadboard wires.
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US$5.59
Basic:bit is a basic breakout board of micro:bit. It carries a buzzer and three groups of GVS pins(P0/P1/P2) on board. Each group of GVS pins separately leads out the IO port, 3V port and GND port on micro:bit. Small size with simple structure, it is quite enough for you to complete 98% micro:bit projects.
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US$6.01
Edge:bit is a breakout board for protecting your micro:bit golden finger. The special designed golden finger brings more convenience to micro:bit extension. But, at the same time, it is easily abraised or scratched by aligator clip. Edge:bit can provide an all-around protection for your micro:bit, which makes your micro:bit life span become much longer.
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US$15.32

Based on VS1053B from VLSI, this MP3 shiled allows you to plug into any Arduino UNO or MEGA direcly without the hassle of having a bunch of wires everywhere. It's small and convienient which makes it more easy to play music compared with the tiny mp3 breakout boards.
It includes a VS1053 chip is a versatile MP3 codec processor that is capable of decoding a variety of music formats,including Ogg/Vorbis/MP3/AAC/WMA/MIDI audio etc..For the best headphone listening experience, the VS1053 includes EarSpeaker spatial processing which accurately simulates how a room with stereo loudspeakers would sound.

 
With the TF card slot on the other side of the board, you can play mp3 files from a Micro SD card using this board.
It is easily to drop it in your project or make a mp3 player using your microcontroller.
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US$6.01
Features: Micro SD card slot, Supports SDIO and SPI interfaces, 2.54mm pitch pinheaders.
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US$19.59
Features: micro:bit edge connector, directly pluggable. Buzzer to play music. Onboard capacitive touch controller, 13x touch keys through I2C interface. 4x RGB LEDs, controlled by only one signal pin. Breakout module control pins, micro:bit SPI pins, and some of the GPIO pins, easy expansion. Comes with development resources (micro:bit graphical demo/python code/user manual, etc.).
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US$13.60
This is an edge connector expansion board designed for micro:bit, breakout the I/O pins to 2.54mm pitch pinheaders for easy use. Specifications: Dimension: 82.05mm x 36.10mm, Through holes diameter: 2mm.
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US$16.79
Speaker expansion module designed for micro:bit, makes your micro:bit become a music player easily. Furthermore, it can also be used for Arduino development, compatible with 3.3V/5V Arduino boards.
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US$35.00
DFRobot FireBeetle series are low power consumption development modules designed for Internet of Things (IoT). The FireBeetle Covers-Camera & Audio Media Board is a multimedia device for IoT that provides interfaces to connect NAU8822 CODEC IIS, OV7725 camera, SD card (SDIO), earphone and microphone. Moreover, it equips with a mini MIC input interface. The NAU8822 CODEC IIS can drive both 12@8Ω BTL loudspeaker and 40mW@16Ω earphone. The direct connection is supported. Meanwhile, NAU8822 supports DAC sound signal acquisition and programmable microphone amplifier. The recording is available when input voices with onboard MIC interface or microphone then save it to SD card. What's more, the function to take photos is available when connected to an OV7725 CAMERA.
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