The Adafruit 16-channel PWM/Servo shield is Adafruit's gift to servo or LED lovers. Using a miserly 2 x I2C pins on the Arduino or Orangepip the PWM shield gives you 12-bit resolution on PWM signals up to 1.6kHz. Not only is the PWM shield undemanding in terms of GPIO, once the PWM rate for a channel has been set there's no overhead on the Arduino, it can get on with other things. If one board isn't enough for your ambitions, the I2C address selection means you can have up to 62 of these boards for a total of 992 channels! Adafruit supplies a software library you can download and a tutorial to get you started.

Supplied as a fully assembled board plus 4 sets of 3 x 4 male straight headers, a 2-pin terminal block, and a row of 0.1in. header pins for you to solder on as needed. The Arduino, servos or LEDs are available separately. Available either as a breakout board or as an Arduino shield.

• Drive 16 x servos or 16 x LEDs with 12-bit PWM up to 1.6kHz
• 5V compliant, compatible with 3.3V Arduino
• Drive outputs up to 6V, ie LEDs with 3.4V V_f
• I2C driver with built-in clock reduces microcontroller overhead
• Terminal block for power with reverse polarity protection
• Adafruit part no. 1411

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

The Adafruit 40 NeoPixel Shield lets your Arduino address every single one of the 40 LEDs and set its 24-bit RGB value. The result is a very 53 x 69mm (2.1 x 2.7in.) neat rectangle of bling. These seemingly simple gadgets have triggered an amazing array of creative projects, from watches and compasses to steampunk goggles and more. The shield only uses 1 x digital ouput pin on the Arduino and more NeoPixel shields can be daisy-chained together and still use just that one pin. A 2-pin terminal block is supplied so that you can power the LEDs with an external supply if you intend adding more boards or driving the first one at full white. Adafruit have published a driver library to save you the trouble and let you get on with designing eye catching displays.

Adafruit have a reputation for the quality of their supporting documentation. You will find their Uberguide to NeoPixels and their Best Practices guide invaluable. In particular the Best Practices guide will help you prolong the life of your NeoPixels and help you avoid common mistakes.

• Drive 40 NeoPixels with 1 x digital output
• 24-bits of RGB for each
• Can be daisy-chained
• 2-pin terminal block for external supply

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

A 20W stereo Class D amplifier fully assembled and mounted on a breakout board. The amp can drive 2 channels into 4 to 8Ω impedance speakers at 20W each. 5 to 12V DC power to the amplifier is via an onboard DC power jack and there is a 3.5mm stereo jack for stereo line level. The Class D configuration means that the amplifier is completely cool-running, requiring no heat sinks or thermal management and also the amplifier works at around 93% efficiency, making it perfect for portable or battery powered applications. The amplifier can be controlled by both analog and digital volume controls, using the supplied 1K pot for analog and by connecting to a microcontroller via I²C to get 64-steps of digital volume control. The breakout board features polarity-protection, jacks and terminal blocks, I²C level shifting, and a spot to solder in a volume pot and the kit comes with 3 x 2-pin and 1 x-3 pin terminal blocks, 470µF power filter capacitor and 1K trim pot. Learning tips and tutorials can be seen at https://learn.adafruit.com.

• Fully assembled
• Power from 4.5 to 14V DC
• 20mA quiescent current
• Up to 29.5dB max gain
• Use DC or AC coupled line-level input, up to 3Vpp
• Filterless spread-spectrum modulation
• Low 0.04% THD+N
• Integrated click-and-pop suppression
• Short-circuit and thermal-overload protection

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

The Adafruit 1.8in. Colour TFT shield displays full 18-bit colour with a resolution of 128 x 160. The neat display is complimented by a 5-way joystick for user input and a micro-SD card socket for FAT16/FAT32 format cards. You can use some or all of the board's features depending on your project, the screen uses 4 x GPIOs for SPI, the joystick uses 1 x analogue input, and the SD-card uses 2 x GPIOs. For best performance use a microcontroller board with a hardware SPI such as the Arduino Uno or Orangepip, though this screen will work with software SPI on an Arduino Mega for example. Thanks to its on-board ultra-low dropout 3.3V regulator and 3 to 5V level shifter it's safe to use with full-fat (5V) Arduinos. Get started by downloading Adafruit's Open Source graphics library and dive into their tutorial.

The shield is supplied with everything soldered on except the 0.1in. headers which are included for you to add if your project needs them. Arduino and micro-SD card not supplied.

• 1.8in. TFT LCD
• 18-bit colour (262,144 shades)
• Uses ST7735R controller which has pixel-addressable video memory
• Use with 3.3 and 5V Arduinos
• Dimensions 69 x 53.5 x 6.9mm (2.7 x 2.1 x 0.3in.)
• Adafruit part no. 802

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

This 1.3" OLED display has a very high contrast, giving excellent readability. The display is 128 x 64 and, because the display makes its own light no backlight is required, reducing power useage and increasing performance.

• Driver chip communicates via I²C or SPI
• OLED requires 3.3V power supply and 3.3V logic levels for communication
• Includes a 3.3V regulator
• All pins are fully level shifted to use with 5V devices

Learning tips and tutorials can be seen here.

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

The DFPlayer Mini is a small and low cost MP3 module player with a simplified output that connects directly to the speaker. The module can be used as a stand-alone module with attached battery, speaker and push-buttons, or used in combination with an Arduino UNO or similar, with RX/TX capabilities.

The DFPlayer perfectly integrates a hard-decoding module, which supports common audio formats such as MP3, WAV and WMA. It also supports a TF memory card with either a FAT16 or FAT32 file system. Through a simple serial port, you can play your music without any other tedious underlying operations.

• Ideal for automatic voice announcements
• Specification:
• Supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48
• 24-bit DAC output, support for dynamic range 90dB, SNR support 85dB
• Fully supports FAT16, FAT32 file systems
• Maximum TF card size: 32G, support 32G of U disk, 64M bytes NORFLASH
• Variety of control modes, I/O control mode, serial mode, AD button control mode
• Advertising sound waiting function: music can be suspended for announcement then continue
• Audio data sorted by folder, supports up to 100 folders, each folder can hold up to 255 songs
• 30-level adjustable volume
• 6-level adjustable equaliser