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Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device, and passes the data lines through. There's a 0.05 ohm resistor in line with the power pin that is used to measure current draw. The Doctor's digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones.

You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It displays both voltage and current readouts. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.

This product contains only the display. Raspberry Pi, case and cables are shown for illustration purposes only and not included.


The cute PiTFT got even more adorable with this little primary display for Raspberry Pi in HAT form! It features a 2.2" display with 320x240 16-bit color pixels. The HAT uses the high speed SPI interface on the Pi and can use the mini display as a console, X window port, displaying images or video etc. Best of all it plugs right in on top of your Model A+ or B+ and fits into our case quite nicely.

It's designed to plug directly onto the Raspberry Pi 2 or Raspberry Pi 1 Model A+ or B+ . While not specifically designed for Pi Model A or B,you can use it with A/B if you solder in an extra-tall 2x13 header (not included) instead of the included 2x20 header.

This design uses the hardware SPI pins (SCK, MOSI, MISO, CE0, CE1) as well as GPIO #25. All other GPIO are unused and are available on a 25-pin long breakout line. Since we had a tiny bit of space, there's 4 flat tactile switches wired to four GPIOs, that you can use if you want to make a basic user interface. For example, you can use one as a power on/off button.

Comes as a fully assembled display PCB and an additional 2x20 GPIO header. Some light soldering is required to attach the 2x20 GPIO header to the HAT but it's fast and easy for anyone with a soldering iron and solder. You can also swap the plain female header we have with a 'stacky' type that lets you plug in a hat or GPIO cable on top or a slim ultra-low-profile header.

Technical Details

• Board Dimensions: 65mm x 57mm x 6mm / 2.6" x 2.2" x 0.2"
• Screen Dimensions: 55mm x 40mm / 2.2" x 1.6"

Tutorials

To make it super easy for use: Adafruit have created a custom kernel package based of off Notro's awesome framebuffer work, so you can install it over your existing Raspbian (or derivative) images in just a few commands. Their tutorial series shows you how to install the software, play small videos, or display images such as from your PiCam and more!

What's going to protect your beloved Raspberry Pi from an onslaught of rainbow-coloured fusion? That's right, it's Unicorn HAT.

Sporting a matrix of 64 (8 x 8) RGB LEDs and powered directly from the Pi, this is the most compact pocket aurora available.

Unicorn HAT provides a wash of controllable colour that is ideal for mood-lighting, 8x8 pixel art, persistence of vision effects, status indications, or just blasting colour into your surroundings.

The MagPi said that Unicorn HAT was "one of the coolest HATs around"

Features

• 64 RGB LEDs (WS2812B)
• LED data driven via DMA over PWM
• Unicorn HAT pinout
• Compatible with Raspberry Pi 3, 2, B+, A+, Zero, and Zero W
• Python library
• Comes fully assembled

Software

We've put together a Unicorn HAT Python library to make it a breeze to use, including lots of beautiful examples of what it can do.

Notes

• Warning: WS2812 LEDs are bright enough to cause eye pain, do not look at them directly when brightly lit. We recommend the use of a diffuser.
• Photo-sensitivity warning: flashing, strobing, and patterns of lights may cause epileptic seizures. Always take care and immediately stop using if you feel unwell (dizziness, nausea, affected vision, eye twitching, disorientation).
• Power: Unicorn HAT requires a >2A microUSB power supply for your Pi. We recommend the official Raspberry Pi power supply.
• Compatibility (audio): as Unicorn HAT uses PWM and GPIO18, it will interfere with analogue audio playback (random colour patterns and flickering). HDMI should work just fine!

Please Note: Raspberry Pi not included

Overview

This is an E-Ink display HAT for Raspberry Pi, 2.7inch, 264x176 resolution, with embedded controller, communicating via SPI interface, supports red, black, and white three-color display.

Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on.

Features

• No backlight, keeps displaying last content for a long time even when power down
• Ultra low power consumption, basically power is only required for refreshing
• Compatible with Raspberry Pi 2B/3B/Zero/Zero W
• Onboard 4x Keys
• SPI interface, for connecting with other controller boards like Raspberry/Arduino/Nucleo, etc.
• Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Specifications

• Operating voltage: 3.3V
• Interface: 3-wire SPI, 4-wire SPI
• Outline dimension: 85mm × 56mm
• Display size: 57.288mm × 38.192mm
• Dot pitch: 0.217 × 0.217
• Resolution: 264 × 176
• Display color: red, black, white
• Grey level: 2
• Full refresh time: 15s
• Refresh power: 26.4mW(typ.)
• Standby power: <0.017mW
• Viewing angle: >170°

Please note: Raspberry Pi not included

Interface

Development Resources

Wiki : www.waveshare.com/wiki/2.7inch_e-Paper_HAT_(B)

Package Includes:

1. 2.7inch e-Paper HAT (B) x 1
2. RPi screws pack (2pcs) x 2

Overview

This RGB LED HAT (B) can be easily attached on top of the Raspberry Pi to display colorful effect, and controlled by only one signal pin.

Features

• Supports any revision of Raspberry Pi (directly-pluggable)
• Onboard 8 × 8 RGB LED (WS2812B)
• Control pin is configurable via jumpers (0Ω resistor)
• Break out control pins, easy for working with other MCUs
• Comes with development resources and manual (examples in Python and Web control)

Specifications

• Operating voltage: 5V
• Brightness: adjustable 256 levels
• Color depth: 24-bit true color (8-bit for R/G/B respectively, totally 256x256x256=16777216 colors)
• Data rate: 800Kbps(typ)
• Dimension: 65mm × 56.2mm
• Mounting hole size: 3.0mm

How to Use

In the case of working with a MCU:

• 5V ↔ 5V power
• GND ↔ GND
• DIN ↔ Signal input

Development Resources

Wiki : www.waveshare.com/wiki/RGB_LED_HAT_(B)

1 single module can drive an 8 * 8 dot matrix common cathode
Module Operating voltage: 5 v
Module dimensions: length 32 mm X 32 mm wide X 13 mm high
4 mounting holes : diameter of 3 mm
Support for cascading multiple modules
Wiring instructions:
VCC: 5 v
GND: GND
DIN: P2.2
CS: P2.1
CLK: P2.0

Package includes:

1 x LED module

Features

• 1024×600 high resolution
• Resistive touch control
• Compatible and Direct-connect with any revision of Raspberry Pi (except the Pi 1 model B or Pi Zero, which requires an HDMI cable)
• Drivers provided (works with your own Raspbian/Ubuntu directly)
• Also works as a computer monitor, in this case, touch panel is unavailable and HDMI cable is required
• HDMI interface for displaying, no I/Os required (however, the touch panel still needs I/Os)
• Backlight can be turned off to lower power consumption

Interface

External Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/10.1inch_HDMI_LCD

Is this not the cutest little display for the Raspberry Pi? It features a 2.8" display with 320x240 16-bit color pixels and a capacitive touch overlay. That's right, instead of a resistive touchscreen, which requires a fingernail or stylus, you can now use a fingerpad.

The screen looks much nicer, with a black bezel and glass overlay.

This updated design fits perfectly onto the Pi Zero, Pi 3, Pi 2 or Model A+, B+! (Any Pi with a 2x20 connector) Not for use with an old Pi 1 with 2x13 connector. This version also has all 40 pins GPIO pins brought out so you can connect a 40-pin GPIO cable underneath.

The display and touchscreen uses the hardware I2C Pins (SDA & SCL), SPI pins (SCK, MOSI, MISO, CE0) as well as GPIO #25 and #24. All other GPIO are unused and you can still share the I2C pins with sensors, LED drivers, etc. Since we had a tiny bit of space, there's 4 slim tactile switches wired to four GPIOs, that you can use if you want to make a basic user interface. For example, you can use one as a power on/off button.

Use it for console access or easily pop up X11 onto the PiTFT for a mini monitor, although its rather small at 320x240. Instead, we recommend using PyGame or other SDL-drawing programs to write onto the frame buffer.

Raspberry Pi computer and enclosure not included! As of July 22nd, 2015 this display comes fully assembled with tactile switches too

Check out Adafruit's detailed tutorial on how to play videos, display images, and otherwise customize your PiTFT.

TECHNICAL DETAILS

• Screen Dimensions: 50mm x 69mm x 4mm / 2" x 2.7" x 0.16"
• PCB Dimensions: 56mm x 85mm x 11mm / 2.2" x 3.3" x 0.4"
• Weight: 47g

Datasheets, EagleCAD PCB files, Fritzing object and more in the tutorial!

Please note: Micro:bit and USB cable not included

Overview

This is a colorful display module designed for the BBC micro:bit, 1.8inch diagonal, 160x128 pixels, capable of displaying 65K colors.

Tired of the 5x5 LED matrix? Time to get a tiny monitor for your micro:bit, this one would be the ideal choice.

Features

• micro:bit edge connector, directly pluggable
• Embedded driver ST7735S, supports 65K colors
• Onboard SRAM 23LC1024, used as display cache, no more out of memory
• SPI interface, takes up only a few IO pins
• Backlight adjustment via PWM
• Reserved solder pads for control interface, make it easy to connect with Arduino/Nucleo boards
• Comes with development resources (micro:bit graphical demo/user manual, etc.)

Specifications

• Driver: ST7735S
• Resolution: 160x128
• Display color: RGB, 65K colors
• Operating voltage: 3.3V
• Dimension: 61mm x 51.5mm

Pinouts

Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/1.8inch_LCD_for_micro:bit