Getting Started with Unicorn Paint
Learn how to pixel paint mini works of art on your Unicorn HAT using your Pi and a web browser
Beginner / Unicorn HATOther Boards
Other Boards
Coming Soon. Login and add this item to your wishlist to be notified when stock arrives. Pricing is estimated at this stage
This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
This neat little board from Nanomesher adds a programmable power switch to your Raspberry Pi with remote control
IOT Cricket - Wi-Fi module (IOT cricket)
Very easy to use, ultra-low power Wi-Fi module, which can run directly on batteries. Designed for developers at all skill levels from advanced to those just starting to build IOT devices.
Cricket is a perfect choice if you want to build IOT end nodes such as sensors, alarms, buttons, switches, etc. to report data and events instantaneously from remote locations. What is really cool is the ultra-low power feature, which will make your devices to run on single batteries for a very long time (for years in many use cases).
With Cricket you can connect various peripherals to Wi-Fi out of the box; send data and events either within your local network or to the internet. Simply attach a battery and peripheral(s) to Cricket and your device is ready to go.
Cricket comes with a native support of MQTT and HTTP POST / GET protocols that allow you to integrate your devices to a huge ecosystem of software and internet services such as e.g. IFTTT, Zapier, Blynk, Home Assistant, Node-RED, automate.io, Google Docs, Emails, Mobile Apps, etc.
Cricket works with all standard Wi-Fi routers and it doesn't require IOT hubs. No coding/programming is required as it comes with pre-installed software. You configure Cricket entirely over the air either from a smartphone or a laptop (without fiddling and troubleshooting toolchains). It can be done either locally (toe_device WiFi hotspot) or remotely from COTA cloud service (http://cota.thingsonedge.com)
FEATURES:
* Ultra-low power, deep sleeep 0.5uA, true 0A (i.e. in a button device)
* Operates directly on batteries 1.0V-3.5V (AA, AAA, AAAA, ...)
* Sends data and events with ~3 seconds latency
* Configurable Real-Time Clock (RTC) for regular wake ups
* Configurable MQTT brokers
* Configurable secure / non-secure HTTP POST/GET requests
* Configurable a battery monitor
* Configurable Analog or Digital inputs (for sensors)
* Built-in configurable temperature sensor
* Local configuration (directly on a Cricket over captive portal / WiFi hotspot)
* Remote configuration from the Cloud (optional)
* OTA firmware updates
Few examples of what you can build with Cricket:
- IoT Button
- IoT Doorbell
- IoT Alams
- IoT Water leak detector
- IoT Moisture sensors
- IoT Motion detectors
- Connect BBC micro:bit to WiFi with Cricket
- Connect Raspberry Pi Pico to WiFi with Cricket
- in general analog or digital sensors ...
Endless possibilities to build broad range of devices which report data in various forms to the internet / services / smartphones
Please check some of our projects (HERE) to get started with Cricket.
Coming Soon. Login and add this item to your wishlist to be notified when stock arrives. Pricing is estimated at this stage
DS3231 Mini RTC Module (Real Time Clock) (rtc)
Description:
RASPBERRY PI NOT INCLUDED
This is a Mini Real-Time Clock module, it's design for the Raspberry Pi, but it can also be used with an Arduino.
Simply plug this tiny module into the GPIO header on the Raspberry Pi and away you go!
Specifications:
- DS3231 RTC IC
- Self-adjust 3.3V and 5V
- Size: 14x14x12 mm
Features:
- Smaller
- Work in 3.3V and 5V
- Supported Raspberry Pi and Arduino
Contents:
- 1x RTC Module
- 1x Battery
Resources:
GPIO Reference Board (Model B+,A+,2B and 3B) (gpio ref 40pin board)
RASPBERRY PI NOT INCLUDED(Neither the key-ring and keys for those who wondered)
This cute little GPIO reference board from allows you to quickly and easily distinguish between the different pins of the Raspberry Pi Model B+, Raspberry Pi 2B, Pi 3B and Pi 3B+. It's even got a key chain hole, so you can carry it around and keep it handy - you'll never know when you need to hack a Pi!
The GPIO reference board features BCM numbering on one side and the pin names on the other. It can be soldered for permanent referencing, or slipped on and off when required.
Dimensions:
Width = 67mm
Height = 19mm
Thickness = 0.8mm
On the RPi3 and later you'll have to snip off a little bit of the corner closest to pin 39 thanks to the new POE pins on the board
On the RPi3 and later you'll have to snip off a little bit of the corner closest to pin 39 thanks to the new POE pins on the board
Raspberry Pi Sense HAT (Sense Hat)
The Sense HAT is an add-on board for Raspberry Pi, made especially for the Astro Pi mission! It’s going to the International Space Station in December 2015 – and is now available to buy from PiShop.
The Sense HAT has an 8×8 RGB LED matrix, a five-button joystick and includes the following sensors:
- 3D Gyroscope
- Accelerometer (Yaw, Pitch & Roll)
- Magnetometer
- Temperature
- Barometric Pressure
- Humidity
The Raspberry Pi Foundation have also created a Python library providing easy access to everything on the board.
Sensing Elements Technical Specification:
Pressure / Temperature (ST Micro LPS25H)
– 24-bit pressure measurement resolution (260hPa to 1260hPa)
– 16-bit temperature measurement resolution (0-125°C)
Datasheet
Humidity / Temperature (ST Micro HTS221)
– 16-bit humidity measurement resolution (0-100% relative humidity)
– 16-bit temperature measurement resolution (0-60°C)
Datasheet
Acceleration/Gyroscope/Magnetic field (ST Micro LSM9DS1)
– 9 degrees of freedom (X, Y, Z independent axes for all sensors)
– ±16 g acceleration measurement range
– ±16 gauss magnetometer measurement range
– ±2000 dps (degrees per second) gyroscope measurement range
Each of these measurement channels has 16 bits of resolution.
Datasheet
All of these sensors have features for periodic sampling of sensor values, complete with internal FIFO storage. The LPS25H and HTS221 have maximum sample rates of 25 per second, the LSM9DS1 has a maximum sample rate of 952Hz
LED Matrix
The LED matrix is driven by a combination of a constant-current LED driver and an Atmel ATTiny88 running a custom firmware that delivers an 8×8 display with 15-bit resolution RGB colour. If you want to get into the gory details, the AVR firmware is available on Github.
Joystick
The Atmel is responsible for sampling the joystick. We didn’t have enough pins left on the Atmel to dedicate the five that we needed to sample the joystick axes independently, so they’ve been spliced into the LED matrix row selects. The joystick gets updated at approximately 80Hz, which is the scan rate of the LED matrix.
All of the sensors (and the base firmware for the Atmel) are accessible from the Pi over I2C. As a fun bonus mode, the SPI peripheral on the Atmel has been hooked up to the Pi’s SPI interface – you can reprogram your HAT in the field! We use this method to get the firmware into the Atmel during production test – and we leave it unprotected so you can substitute the stock firmware to get it to do whatever you want. Seriously. First person to turn this sensor HAT into a quadcopter controller HAT wins a cookie from me.
Getting Started
Connect your Sense HAT to the Raspberry Pi via the 40 GPIO Pins.You will then need to install the software:
Open up a terminal and run the following command:
wget -O - http://www.raspberrypi.org/files/astro-pi/astro-pi-install.sh --no-check-certificate
When the install has finished you will need to reboot your Raspberry Pi!
Getting started with the Raspberry Pi Sense HAT
8-Channel 3.3V to 5V Voltage Converter Module for Raspberry Pi - Blue (8ch blue convert logic)
Raspberry Pi and jumper cables are not included.
Highlights:
- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules
- Supports total of 8 channels
- Range of voltage converted: 1.8V~6VDC
How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
Highlights:
- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules
- Supports total of 8 channels
- Range of voltage converted: 1.8V~6VDC
How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
L9110S H Bridge Stepper Motor Dual DC Driver Controller Module (L9110S small H Bridge)
Description:
There are two L9110S motor controller chips onboard
This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
Feature:
Work under low static current
Power supply voltage: DC 2.5V - 12V
Each channel has 800mA continuous current output
Low saturation pressure drop
TTL / CMOS output level compatible, can be connected directly to the CPU
Output built-in clamping diode, apply to the perceptual load
Control and drive integrate in IC
Pin high pressure protection function
Working temperature: 0°C - 80°C
Size: 29 x 21mm(L x W)
Circuit diagram:
Package includes:
1x L9110S stepper motor driver
Robot control with Python
This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
L298N Dual H-Bridge Stepper Motor Driver Board (H Bridge big red dual stepper)
Description:
Double H bridge drive
Chip: L298N (ST NEW)
Logical voltage: 5V
Drive voltage: 5V-12V
Logical current: 0mA-36mA
Drive current: 2A (MAX single bridge)
Storage temperature: -20 to +135
Max power: 25W
Weight: 30g
Size: 43 x 43 x 27mm
Note:
This module has a built-in 5v power supply, when the driving voltage is 7v-12v, this supply is suitable as a power supply.
DO NOT connect input voltage to +5v on controller interface.
When ENA is enabled IN1 IN2 control OUT1 OUT2
When ENB is enabled IN3 IN4 control OUT3 OUT4
Note: Package does not include the board mounting screws.
Package includes:
1 x L298N Module
Robotic control with python
Double H bridge drive
Chip: L298N (ST NEW)
Logical voltage: 5V
Drive voltage: 5V-12V
Logical current: 0mA-36mA
Drive current: 2A (MAX single bridge)
Storage temperature: -20 to +135
Max power: 25W
Weight: 30g
Size: 43 x 43 x 27mm
Note:
This module has a built-in 5v power supply, when the driving voltage is 7v-12v, this supply is suitable as a power supply.
DO NOT connect input voltage to +5v on controller interface.
When ENA is enabled IN1 IN2 control OUT1 OUT2
When ENB is enabled IN3 IN4 control OUT3 OUT4
Note: Package does not include the board mounting screws.
Package includes:
1 x L298N Module
Robotic control with python
GPIO Breadboard Breakout Kit (GPIO breakout kit)
We created this bundled breakout kit for easy connection from your Raspberry Pi GPIO to the breadboard.
The bundle is discounted to save you some hard earned cash rather than paying full price for loose components.
Package includes:
1 x BreadBoard 400 tie points
1 x 40-Pin Gray Ribbon Cable (29cm)
1 x GPIO T Board for easy breadboard connection
The bundle is discounted to save you some hard earned cash rather than paying full price for loose components.
Package includes:
1 x BreadBoard 400 tie points
1 x 40-Pin Gray Ribbon Cable (29cm)
1 x GPIO T Board for easy breadboard connection
VGA 666 Adapter Board For Raspberry Pi 3 Model B 2B B+ A+ (vga board red soldered)
Description:
It is a neat and very useful solution for using a VGA display/monitor with your Raspberry Pi and is cheaper than an HDMI to VGA adapter or similar. The VGA connection is driven natively in hardware over the GPIO pins (using a parallel interface) and uses around the same CPU load as the HDMI connection on board. It is capable of displaying 1080p60 VGA video with no CPU load. It is also possible to drive this interface at the same time as the HDMI connection, so a dual screen set up is also possible.
This add-on board uses all but 6 of the GPIO pins so it may not be possible to use other add-on boards at the same time as the VGA adapter. You should disable all of the GPIO pin's function so that it can work properly.
We strongly recommend that you use 800x600 resolution. Higher resolution will slow down your Pi and use more RAM.
Features:
- Support for Raspberry Pi 3B / 2B / B+ / A+
- The VGA output supports resolution:from 640 x 480 up to 1920 x 1024 at 60fps.
- With 6 bits per channel you have a maximum of 262144 colours.
- No soldering required.
- Easy to setup.
- Easy to configure.
- Dimension: 64.00mm x 32.3mm
- Net weight: 16.5g
Note:
Raspberry Pi main board is not included.
More about this item: http://wiki.52pi.com/index.php/VGA666_Module_For_RPi_SKU:EP-0073
Package includes:
1 × VGA Adapter Board
It is a neat and very useful solution for using a VGA display/monitor with your Raspberry Pi and is cheaper than an HDMI to VGA adapter or similar. The VGA connection is driven natively in hardware over the GPIO pins (using a parallel interface) and uses around the same CPU load as the HDMI connection on board. It is capable of displaying 1080p60 VGA video with no CPU load. It is also possible to drive this interface at the same time as the HDMI connection, so a dual screen set up is also possible.
This add-on board uses all but 6 of the GPIO pins so it may not be possible to use other add-on boards at the same time as the VGA adapter. You should disable all of the GPIO pin's function so that it can work properly.
We strongly recommend that you use 800x600 resolution. Higher resolution will slow down your Pi and use more RAM.
Features:
- Support for Raspberry Pi 3B / 2B / B+ / A+
- The VGA output supports resolution:from 640 x 480 up to 1920 x 1024 at 60fps.
- With 6 bits per channel you have a maximum of 262144 colours.
- No soldering required.
- Easy to setup.
- Easy to configure.
- Dimension: 64.00mm x 32.3mm
- Net weight: 16.5g
Note:
Raspberry Pi main board is not included.
More about this item: http://wiki.52pi.com/index.php/VGA666_Module_For_RPi_SKU:EP-0073
Package includes:
1 × VGA Adapter Board
Pimoroni Explorer HAT PRO (Explorer hat pro)
Please note: Raspberry Pi not included
The Explorer HAT and Explorer HAT Pro are the perfect prototyping side-kicks for your Raspberry Pi!
We've added a heap of useful input and output options that will take your projects to the next level. Great for driving motors, using analog sensors, interfacing with 5V systems, and touch (even fruit based!) interfaces.
It's compatible with Raspberry Pi 2, Pi 3, B+, and A+ and comes fully assembled.
Features:
- Four buffered 5V tolerant inputs
- Four powered 5V outputs (up to 500mA!)
- Four capacitive touch pads
- Four capacitive crocodile clip pads
- Four coloured LEDs
- PRO ONLY Four analog inputs
- PRO ONLY Two H-bridge motor drivers
- PRO ONLY A heap of useful (unprotected) 3v3 goodies from the GPIO
- A mini breadboard on top!
5V tolerant inputs - Hook up your Pi to accept input from 5V systems (like Arduino Uno/Leonardo or 5V Trinkets). We've used a 5-channel buffer that will accept anything from 2V-5V as logic high.
5V powered ouputs - The onboard darlington array can supply up to 500mA per channel (but you'll be limited to driving around 1A total from the board). Ideal for stepper motors, solenoids, and relays.
Eight capacitive inputs - Four along the front edge for touch input (labelled 1, 2, 3, 4) and four up the side for attaching crocodile clips to objects (such as fruit, or tin foil) for experimentation!
Four coloured LEDs - Independently controllable LEDs (red, green, blue, and yellow) that make great status indicators.
Four analog inputs (pro only) - A tidy way to integrate analog signals into your project.
Two H-Bridge motor drivers (pro only) - Drive two 5V motors bidirectionally with up to 200mA per channel. Ideal with our micro-metal gear-motors to create the perfect little buggy! You can even soft-PWM for full speed control.
Full Python library, documentation and examples - Head on over to our GitHub to find a Python library, examples, documentation and a brief introduction to Explorer HAT: https://github.com/pimoroni/explorer-hat
SparkFun Logic Level Converter Bi-Directional (Sparkfun logic level converter )
If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.
This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.
The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.
Dimensions: 0.63 x 0.52" (16.05 x 13.33mm)
Documents:
T Style 40-Pin GPiO Breakout Board for Raspberry Pi (T Board blue)
Description:
Pic is for illustration purposes only.
Colour might differ between blue and red as per manufacturer stock availability.
This T shaped breakout board makes it easier to use the GPIO pins as it is bigger in size and labeled.
The board also tightly fits on to a breadboard making electronic experiments much easier.
Specifications:
- 40 Pins means it's ready for use on the Pi3B,Pi2B and B+
Contents:
- 1 x T Style 40-Pin GPiO Breakout Board
Resources:
Prototyping Expansion Board For Raspberry Pi 2/3 Model B and B+ Kit (AW Pi prototyping kit)
Features:
The hole gap is 2.54mm, and it's compatible with IC with DIP package.
The IO port can be quickly and easily implement your ideas.
Note:
- Extra header spacer included
- 170 tie points breadboard arranged in 34 rows of 5 pins included
Package includes:
1 x Prototyping Shield kit
The hole gap is 2.54mm, and it's compatible with IC with DIP package.
The IO port can be quickly and easily implement your ideas.
Note:
- Extra header spacer included
- 170 tie points breadboard arranged in 34 rows of 5 pins included
Package includes:
1 x Prototyping Shield kit
OnOff SHIM (On/Off Shim)
Our SHIMs (Shove Hardware in the Middle) are a new range of boards designed to be small, affordable, and handy. They're just 1mm thick (the bare board, not including mounted components) and designed to be soldered straight onto the GPIO pins of your Pi, if you wish, so that you can use them with HATs and pHATs on top.
Usage
Just plug your micro-USB power supply into the micro-B connector on OnOff SHIM, and then press the button once to switch on power and boot up your Pi. After installing our software (details below), you can press the button again to initiate a clean shutdown and completely cut the power to your Pi.
Features
- super-small SHIM-format board
- 1mm thick PCB
- can be used with HATs and pHATs
- corner-mounted push button for on/off
- micro-B connector for power supply
- red status LED
- optional breakout pins to connect an external momentary button
- 2x6 female header included
- software daemon to shutdown cleanly
- requires soldering
Software
We've put together a one-line-installer to install the clean shutdown daemon. It watches the state of BCM pin 17 and, when pulled low (pressed), it initiates a clean shutdown. Last thing, just before your Pi shuts down, BCM pin 4 is pulled low to completely cut power to your Pi.
To install the software, open a terminal and type curl https://get.pimoroni.com/onoffshim | bash to run the one-line-installer.
Add a tiny yet convenient power switch to your Pi with OnOff SHIM!
Adafruit DC & Stepper Motor HAT - Mini Kit (Adafr DC and Step Mini Kit)
Let your robotic dreams come true with the new DC+Stepper Motor HAT from Adafruit. This Raspberry Pi add-on is perfect for any motion project as it can drive up to 4 DC or 2 Stepper motors with full PWM speed control.
Raspberry Pi and motors are not included.
Since the Raspberry Pi does not have a lot of PWM pins, we use a fully-dedicated PWM driver chip
onboard to both control motor direction and speed. This chip handles
all the motor and speed controls over I2C. Only two pins (SDA & SCL)
are required to drive the multiple motors, and since it's I2C you can
also connect any other I2C devices or HATs to the same pins.
In fact, you can even stack multiple Motor HATs, up to 32 of them, for controlling up to 64 stepper motors or 128 DC motors (or a mix of the two) - just remember to purchase and solder in a stacking header instead of the one we include.
Motors are controlled by TB6612 MOSFET drivers with 1.2A per channel and 3A peak current capability, a big improvement over L293D drivers and there are built-in flyback diodes as well.
We even had a little space so we added a polarity protection FET on the power pins and a bit of prototyping area. And the HAT is assembled and tested here at Adafruit so all you have to do is solder on the included 2x20 plain header and the terminal blocks.
Lets check out these specs again:
- 4 H-Bridges: TB6612 chipset provides 1.2A per bridge (3A peak) with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 13.5VDC.
- Up to 4 bi-directional DC motors with individual 8-bit speed selection (so, about 0.5% resolution)
- Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil, interleaved or micro-stepping.
- Big terminal block connectors to easily hook up wires (18-26AWG) and power
- Polarity protected 2-pin terminal block and jumper to connect external 5-12VDC power
- Works best with Raspberry Pi model A+, B+, Pi 2 B or Pi 3 B.
- Install the easy-to-use Python library, check out the examples and you're ready to go!
Comes with an assembled & tested HAT, terminal blocks, and 2x20 plain header. Some soldering is required to assemble the headers on. Stacking header not included.
Raspberry Pi, motors, and battery pack are not included but we have lots of motors in the shop and all our DC motors, and stepper motors work great. Check out Adafruit's detailed tutorial for tons of info including schematics, wiring diagrams, python libraries and example walkthroughs.
PiFace Digital 2 I/O Expansion Board for Pi3 (PiFace Digital 2)
PiFace Digital is designed to plug on to the GPIO of your Raspberry Pi, allowing you to sense and control the real world. With PiFace Digital 2 you can detect the state of a switch, for example from a door sensor, a pressure pad or any number of other switch types. Once this state has been detected, you can write your own software for the Raspberry Pi that determines how to respond to that switch state. You can drive outputs to power motors, actuators, LEDs or anything else you can imagine!
Features:
- Plugs directly onto the Raspberry Pi GPIO socket
- Fits Directly over the Raspberry Pi and within the Raspberry Pi's footprint
- 2 Changeover Relays
- 4 Tactile Switches
- 8 Digital Inputs
- 8 Open-Collector OutPuts
- 8 LED Indicators
- Easy to program in Python, Scratch and C
- Graphical Emulator and Simulator
- Relays can be used to switch voltages up to 20V (Max) or currents up to 5A (Max)
Applications:
- Experiments with Scratch
- Light Gates
- Detectors and Alarms
- Birdbox Sensor
- Simon (Game)
- Game Controllers
Downloads, Tutorials and Guides:
TEA5767 FM Stereo Radio Module 76-108MHZ For Arduino With Antenna (FM receiver module)
Features:
Frequency range from 76-108MHZ automatic digital tuning.
High sensitivity, high stability, low noise, radio module.
A low-power electro-tuning FM stereo radio circuit, which integrates the IF frequency selection and demodulation network.
High sensitivity (Using low noise RF input amplifier)
High-gain automatic gain control (AGC) circuit
LC tuned oscillator fixed chip.
Specifications:
Board size: 31 x 30 mm
With a power reverse-protection diode
Board comes with power output filter inductor
Multiple capacitor combination filter
Blue power indicator
You can directly pull and plug the antenna port
I2C bus communication
FM radio TEA5767 dedicated chip module
Onboard headphone amplifier chip TDA1308 for audio amplification
Onboard 3.5mm audio interface, can be directly connected to headset amplifier
If connected with single chip, only need to connect the power ground and two I2C communication lines
Package includes:
1 x TEA5767 Radio Module
Instructable
Frequency range from 76-108MHZ automatic digital tuning.
High sensitivity, high stability, low noise, radio module.
A low-power electro-tuning FM stereo radio circuit, which integrates the IF frequency selection and demodulation network.
High sensitivity (Using low noise RF input amplifier)
High-gain automatic gain control (AGC) circuit
LC tuned oscillator fixed chip.
Specifications:
Board size: 31 x 30 mm
With a power reverse-protection diode
Board comes with power output filter inductor
Multiple capacitor combination filter
Blue power indicator
You can directly pull and plug the antenna port
I2C bus communication
FM radio TEA5767 dedicated chip module
Onboard headphone amplifier chip TDA1308 for audio amplification
Onboard 3.5mm audio interface, can be directly connected to headset amplifier
If connected with single chip, only need to connect the power ground and two I2C communication lines
Package includes:
1 x TEA5767 Radio Module
Instructable
Create your own little Arduino FM radio using this receiver
Unicorn HAT (Unicorn HAT)
Short video on the Unicorn HAT
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!
Short video on the Unicorn HAT
Tutorials & Projects
Make rainbows with Unicorn HAT
Learn how to use Unicorn HAT and HSV colour to make awesome rainbows
Intermediate / Unicorn HATGetting Started with Unicorn HAT
Learn how to use Unicorn HAT, the vibrant 8x8 pixel colour display for your Pi
Beginner / Unicorn HATUsing Unicorn HAT in IDLE
Learn how to use Unicorn HAT in IDLE, the Python IDE
Beginner / Unicorn HAT
Nanomesher - Hackable Raspberry Pi Switch w/ Remote Control (Nanomesher power switch)
This neat little board from Nanomesher adds a programmable power switch to your Raspberry Pi A+/B+/2/3/Zero/Zero W, which can be controlled by a single button or IR remote!
This is the Hackable Raspberry Pi Power switch which was successfully funded on Kickstarter in April 2017.
The Hackable Raspberry Pi Switch features an on board and removable Attiny85 Arduino Development MCU, which means the switch is both Smart and Hackable!
The Pi Switch Features
- Single button on/off or Infrared (IR) remote operation (Remote Included)
- LED light to indicate power status
- Blinks twice when Switch receives power
- Turn On when Pi is on
- Blinks when waiting for Pi to turn off
- Turn Off when Pi is off
- Use standard microUSB and USB female socket
- Suitable for mounting on front face plate
- Onboard Attiny85 Microprocessor can be removed and reprogrammed if needed
Package Include:
- Hackable and Smart Pi Power Switch with removable Attiny85 microcontroller
- 4 x Jumper cables to Pi
- High Quality MicroUSB cable (20cm)
- Infrared remote control
While it works out of the box. You can also reprogram it using an Attiny MCU programmer. Code and Guides are included are downloadable from here. There is a package which include both the Switch and Programmer
Being Hackable, the firmware can be modified so that the switch can be used as a development board with these functions:
- One output to trigger relay
- One output to LED
- One analog input to detect voltage between 0-5v
- One input for push button
- One input for infrared receiver which I have the code to distinguish all the buttons in the remote included
- One output to trigger an external digital input (pull down)
Operation Sequence
1. Press once to turn On
2. Press again to trigger shutdown of the Pi's Linus OS using the shutdown script
3. Switch will monitor the Pi and wait for the Pi to be fully shutdown (halt state)
4. Once halt state is detected, cut the power to the Pi.
Downloads
This neat little board from Nanomesher adds a programmable power switch to your Raspberry Pi with remote control
Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit (adaf 16 servo control)
Control 16 Servos with perfect timing!
This HAT can also do PWM up to 1.6 KHz with 12 bit precision, all completely free-running.
For use with Raspberry Pi Model A+ or B+, can be used with the Model A or B if you use a tall 2x13 header instead of the included 2x20.
- drive up to 16 servos or PWM outputs over I2C with only 2 pins.
- The on-board PWM controller will drive all 16 channels simultaneously with no additional Raspberry Pi processing overhead.
- stack up to 62 HATs to control up to 992 servos - all with the same 2 pins!
Best of all, Adafruit even have a Python library you can use, so you'll be up and running instantly, to make your robotic creation com to life. The Adafruit PWM/Servo HAT is the perfect solution for any project that requires a lot of servos or PWM outputs! Check out Adafruits detailed tutorial for lots more information including diagrams, schematics, installation instructions and more
Each order contains
- a Servo HAT
- a 2-pin terminal block
- four 3x4 headers
- a 2x20 socket header
You'll need to do some light through-hole soldering to attach the headers onto the HAT circuit board. If you would like to stack multiple HATs onto one Pi, you can also pick up a 2x20 stacking header and a set of right-angle 3x4 headers that should be soldered on instead.
Please note! This kit does not come with Raspberry Pi, servos, or required 5V power supply.