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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.

Specifications:

Voltage range: 3.3V-9V
Current range: 0-3A
Voltage display: red
Current display: blue
Out put : 2 USB
Size: 52mm x 34mm x12mm
Weight: 16g
Shell color: Dark black

What's in the box?:

1 x Voltage Tester Dual USB

This lovely little (14.2mm) seven segment display provides excellent segment uniformity and is highly visible up to seven meters away. It's ultra bright, and provides great readability even in bright ambient light!

It has four digits and a decimal point on each digit, designed for numeric output, so you can use it to add a clock, timer or counter into your next project.

These displays are multiplexed, common-cathode. What that means it that you can use a 74HC595 or just 8 microcontroller pins if you can spare them to control the 8 anodes (7-seg decimal) at about ~15mA each, and then connect NPN transistors or a TPIC6B595 to the cathodes to sink the 8*20mA = ~120mA maximum per digit.

This is an ultra bright RED colour.

Specifications

• 100mcd
• 14.2mm (0.56") digit height
• Color: red (630nm)
• Common cathode display
• Maximum power dissipation per segment: 66mW
• Maximum pulse peak forward current per segment (1/10th duty cycle, 0.1ms pulse width): 100mA
• Maximum forward current per segment: 20mA
• Maximum reverse voltage: 5V
• Maximum reverse current: 20µA
• Typical forward voltage: 2.1V at 20mA
• Maximum forward voltage: 2.5V at 20mA
• Operating temperature range: -30°C - 70°C
• Typical luminous intensity: 20mcd

Description:

It's easy to set up, features a great resolution, comes complete with a black acrylic stand, and has touch by default!

Recent upgrades:

If you were used to seeing the Self Test at power on, this has now been removed. However if you remove the jumper located on the controller board you can re-enable this feature.

This device uses the Pi's HDMI output for display, and the Pi's USB port for touch control. Assembly of the Waveshare 10.1" screen is easy, just follow this simple guide here.
Please Note. This device does require some simple set up. You will need a UK to EU power adapter.

The LCD Screen Features:

• 10.1inch HDMI LCD (B)
• 1280x800 Resolution
• UK 5V 2A Power Supply Included
• Capacitive touch control
• Supports Raspberry Pi, Ubuntu, Windows 10 IoT driver free
• Can also be used as a computer monitor, supports Windows 10/8.1/8/7/XP etc.
• Supports BB Black, comes with Angstrom image
• HDMI interface for displaying, USB interface for touch control
• Input interfaces: HDMI
• Multi languages OSD menu, for power management, brightness/contrast adjustment, etc.
• Firmware is upgradable to support more new features (continually updated)

The Case Features:

• Material : High quality black and clear Acrylic
• Comes with bottom holder, 45° tilt angle
• Features mounting holes for Raspberry Pi 3B/2B/B /A /B, and BB Black

What's in the box?:

1 x HDMI 10.1" Touch Screen
1 x Acrylic panels
1 x HDMI cable

Resources:

User Manual
Quick Assembly Guide

Wiki

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

Description:

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!

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.

• 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
• 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)

• 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°

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

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.

• 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)

• 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

In the case of working with a MCU:

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

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

Description:

The MAX7219 are compact, serial input/output common-cathode display drivers that interface microprocessors to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. 



Specifications:

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

• 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

External Dimensions

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

13.3inch IPS screen, 1920x1080 high resolution. Toughened class cover. Supports Raspberry Pi and can also be used as a computer monitor.

• 13.3inch IPS screen,1920x1080 high resolution
• Toughened glass capacitive touch panel, 6H hardness
• Supports popular mini PCs such as Raspberry Pi, BB Black, as well as general desktop computers
  • When works with Raspberry Pi, supports Raspbian, Ubuntu, WIN10 IOT, single touch, and driver free
  • When work as a computer monitor, supports Windows 10/8.1/8/7, ten-points touch, and driver free
• Multi languages OSD menu, for power management, brightness/contrast adjustment, etc.
• 3.5mm audio jack, supports HDMI audio output
• Embedded ferrite Hi-Fi speaker
• Also supports VGA input (specific cable is required and should be purchased separately)
• 75x75mm spacing mounting holes (M4 screw hole) for general wall mount
• Comes with 75° tilt angle stand

External Dimension

Wiki : www.waveshare.com/wiki/13.3inch_HDMI_LCD_(H)_(with_case)

• 7inch IPS screen, 1024x600 hardware resolution
• Capacitive touch control
• Supports popular mini PCs such as Raspberry Pi, BB Black, as well as general desktop computers
  • When works with Raspberry Pi, supports Raspbian/Ubuntu/Kali/Retropie/WIN10 IOT, driver free
  • When work as a computer monitor, supports Windows 10/8.1/8/7, five-points touch, and driver free
• Backlight can be turned off to lower power consumption

Note: to use the LCD with following mini-PCs, additional cables are required and should be purchased separately:
Raspberry Pi Zero: HDMI cable, USB-type-A-receptacle-to-Micro-B-plug-cable
BB Black: HDMI cable

Wiki : www.waveshare.com/wiki/7inch_HDMI_LCD_(C)

Why the LCD doesn't work with my Raspbian?

To use the LCD with the Raspberry Pi official image, driver should be installed first. Please refer to the user manual.
However, for the first testing, you may want to use our provided image directly.

Why the LCD still doesn't work with the Waveshare provided image?

Make sure the hardware connection is correct and connects fine.
Make sure the image in TF card is burnt correctly.
The PWR will keep on and the ACT will keep blinking when the Raspberry Pi starts up successfully, in case both of the two LEDs keep on, it is possible that the image was burnt incorrectly OR the TF card was in bad contact.

Which power supply should I use?

It is recommended to use a 5V/3A power adapter for the Raspberry Pi other than USB connection, otherwise the Pi may failed to start up because the PC's USB port might have not enough power.
For large size LCDs, say, 10inch diagonal or more, another stand-alone power adapter is also required to provide power to the LCD.

For more info, please check the wiki page.

Use Four Letter pHAT to display... four letter words. Not that sort!

Pi ZERO and case not included!

Four Letter pHAT has four 14-segment displays that you can use to display text, numbers, and a host of other characters. Its LEDs are a beautiful retro green, just like you old digital alarm clock. They're driven by the HT16K33 chip over I2C.

It's perfect as a readout for your projects, displaying temperatures, times, etc. and becomes really useful when combined with some of our other boards like Enviro pHAT or Explorer pHAT to display their sensor values.

Features

• Four 14-segment displays with green LEDs
• HT16K33 driver chip
• Compatible with Raspberry Pi 3, 2, B , A , Zero, Zero W
• Python library
• Female header and display pins require soldering

Software

Our handy one-line installer will install the Four Letter pHAT Python library for you. We've included a bunch of examples too, to show off what you can do with Four Letter pHAT; things like a clock, a countdown timer, or CPU activity monitor.

Protect your new 7" Raspberry Pi Touchscreen with this lovely little display frame from Pimoroni! Designed with a slimline profile, it's perfect for keeping your Raspberry Pi screen upright, and at an ideal viewing angle!

Please note: Raspberry Pi Touchscreen and Raspberry Pi are not included

Pimoroni's Touchscreen Display Frame Features:

• Slim profile made up of only 3 layers keeps the screen protected
• 2 Legs hold the screen at an ideal viewing angle
• Provides support and protection to the back of the screen
• All Raspberry Pi Ports accessible
• Leaves touchscreen free for touching
• No tools required for assembly