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Putting your ports in perfect order and protecting them from human error. Explore your Raspberry Pi's GPIO ports safely and easily.
Putting your ports in perfect order and protecting them from human error. Explore your Raspberry Pi's GPIO ports safely and easily.
Putting your ports in perfect order and protecting them from human error. Explore your Raspberry Pi's GPIO ports safely and easily.
1,095 backers pledged £23,561 to help bring this project to life.

About this project

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RasPiO Pro Hat Protect/Position Raspberry Pi Ports Perfectly

£23,561

1,095

We're into the final hours of the campaign now. After it finishes, all information will be available at...

http://rasp.io/prohat

RasPiO Pro Hat is a small Raspberry Pi add-on which...

  • protects the Pi's ports in case you make a wiring error
  • arranges the Pi's ports in numerical order to make tinkering easier
  • works "out of the box" with GPIO Zero - the new easy-to-use Python library included in Raspbian
  • requires no soldering or assembly
  • requires no software installation
  • includes a 170pt mini-breadboard to build your circuits on 
  • gives you direct access to the ports if you need it
  • requires no additional resistors for use with LEDS
  • will have RasPi.TV-style tutorial experiments suitable for beginners and experts alike
  • works with any 40-pin Raspberry Pi
GPIO Ports in numerical order 2-27 around the breadboard (leds not included)
GPIO Ports in numerical order 2-27 around the breadboard (leds not included)

Let's Put The Ports In Order

For a long time I've thought it would be helpful if there was a board that put the Raspberry Pi's GPIO ports in numerical order. It seems like the obvious and logical approach for ease of use and learning. And yet nobody has done it like this - until now.

The Raspberry Pi Education Team uses the Broadcom chip's GPIO numbers in all of the official resources. All of my RasPi.TV tutorials do as well. So you can use nearly all of these resources straight out of the box.

But, the way the pins are arranged on the Pi itself is not sequential and you could be forgiven for asking "why not?"  (Design constraints and historical reasons.)

RasPiO Portplus on Pi2 - showing the order of the ports
RasPiO Portplus on Pi2 - showing the order of the ports

Port Protection

With the RasPiO Pro Hat, I want to make GPIO tinkering that little bit easier and safer for beginners and pros alike. So not only are the ports in numerical order, from 2 to 27, placed around a 170 point mini-breadboard, but each port is protected against over-current and over/under-voltage. It uses the same protection circuitry as the original 26-pin RasPiO Breakout Pro, about which I've never heard a single complaint.

RasPiO Pro Hat combines an update of a well-proven board with the convenience of sequential GPIO ports, adding HAT circuitry and a mini-breadboard. It comes fully assembled and there is no soldering required (unless you choose to use the optional direct port access).

Ready To Use

RasPiO Pro Hat is ready to use straight out of the box. There is nothing to assemble, nothing to solder and no software installation needed. GPIO Zero is pre-installed as standard on Raspbian from November 2015 onwards. All you have to do is build a circuit on the breadboard and control it with GPIO Zero (or RPi.GPIO etc). It can be a simple LED or something a bit more complex like this motion-activated security light...

Security Light Circuit built on Pro Hat
Security Light Circuit built on Pro Hat

Direct Port Access (for advanced users)

It also maintains the RasPiO philosophy of large, clear port labels and multiple breakout options. There's an unpopulated header which can be used if you want to bypass the 330 Ohm resistor on any of the ports. This is for more advanced users, but you'll be amazed at how quickly you become one, once you get into the tutorials.

Access to unprotected ports via unpopulated header if required
Access to unprotected ports via unpopulated header if required

Tutorials

My goal is to help people enjoy GPIO tinkering on Raspberry Pi. The better the project does, the more time I can devote to creating some content to help you do that. If you look at what I did with the RasPiO Duino, we have a 54 page eBook and 5 videos. This is actually a progressive introductory course in Arduino programming, heavily disguised as a fun set of experiments.

I can't promise to go quite that far with this project, but if it does very well, it would be nice to create some really good resources for it. I enjoy creating top-notch content, but it really does take a lot of time.

Current potential tutorial ideas include experiments with... 

  • LEDs
  • Buzzers
  • Buttons
  • PIR sensors
  • Light sensors
  • ADCs
  • analogue sensors

...but I'm open to ideas about what people would find useful/helpful. (I'd also love to do some more advanced tutorials e.g. photo-tweeting burglar alarm if the project does well enough.)

Rewards

Rewards available on the RasPiO Pro Hat Campaign
Rewards available on the RasPiO Pro Hat Campaign

The GPIO Zero Experimenter's Kit Includes...

  • Five 10mm LEDs 
  • MCP3008 ADC chip 
  • TMP-36 analogue temperature sensor 
  • 1-channel relay 
  • PIR motion sensor 
  • 10k potentiometer 
  • 40-way male header 
  • 20 M-M jumper leads 
  • 20 M-F jumper leads 
  • Piezo buzzer 
  • Large button 
  • 10k resistor

Here's a closer look at it...

GPIO Zero Experimenter's Kit
GPIO Zero Experimenter's Kit

Stretch Goals

#1 UNLOCKED 25 Jan: At £13,000 we will add in a light sensor (LDR), a 100 nF capacitor and a 5mm red LED...

£13,000 stretch goal hardware
£13,000 stretch goal hardware

...there will also be a tutorial showing how to use them. We will also donate 10 Pro Hats to Picademy. The led can be used as an indicator, or to test your output pin control. The light sensor (LDR) can be used to trigger events according to how light or dark it is, to log light levels, or, in combination with other components, can be used to make decisions. There is a built-in LDR function in GPIO Zero.

#2: UNLOCKED 3rd Feb: At £18,000 we'll add a 5mm three-colour (RGB) LED like this one...

At £18,000 we add an RGB LED
At £18,000 we add an RGB LED

...and a tutorial to go with it. We'll also add another 10 Pro Hats to the Picademy swag bag. An RGB LED can be used to make any colour by "mixing" red, green and blue light. GPIO Zero has an inbuilt function for controlling RGB LEDs.

#3 If we hit and remain above £25,000 I will commission a Fritzing part for the RasPiO Pro Hat. I will also add another 10 Pro Hats to the Picademy swag bag.

Projected Timings

Projected Timelines for RasPiO Pro Hat
Projected Timelines for RasPiO Pro Hat

General Points

  • If the project does extremely well, it will take longer to ship, but rewards will be shipped out in approximate backer # order (early birds first, although we may sort by destination) and we will keep you updated about how far we have got.
  • Tracking codes and individual shipping notifications will not be issued, but regular updates will show you which reward groups have been sent, so you will know when your rewards are on the way
  • No variants! This is a simple project. There won't be six colour choices or lots of different packages on offer.
  • No radical design changes. This would delay the project for everyone.

If you've got this far, congratulations. Please back the project by selecting one of the rewards.

________________

Music: Sweet Success from Purple Planet 

Risks and challenges

There's really not much risk involved here. Having completed three KickStarter projects in the past (the most recent two were shipped early), I have a very good idea of what to expect.

The main 'new' thing here is that we'll be getting the boards manufactured and assembled by a contractor. Because of this, we'll have manufacturing trial(s) to make sure the process works and iron out any bugs before scale-up. Involving other people increases the risk of delays, but the estimated schedule has some 'lag' built in.

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  1. Select this reward

    Pledge £2 or more About $2.88

    RasPiO Portsplus port identification board for Raspberry Pi 2, B+, A+, Zero

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  2. Select this reward

    Pledge £4 or more About $6

    RasPiO GPIO ruler for Raspberry Pi. Combines a 6 inch ruler with port ID and RPi.GPIO code crib-sheet.

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    Pledge £10 or more About $14

    Early-bird RasPiO Pro HAT for Raspberry Pi. Get the best deal and get yours before other tiers. One RasPiO Pro Hat.

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    Reward no longer available 250 backers
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    Pledge £12 or more About $17

    RasPiO Pro HAT for Raspberry Pi. One RasPiO Pro Hat.

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  5. Select this reward

    Pledge £22 or more About $32

    Twin-pack RasPiO Pro HAT for Raspberry Pi. Two RasPiO Pro Hats.

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    180 backers
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  6. Select this reward

    Pledge £25 or more About $36

    GPIO Zero Experimenter's Kit including One RasPiO Pro Hat. This gives you a whole host of components to get the most out of your Pro Hat and enjoy exploring the features of GPIO Zero. See the photo on the main page.

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    Pledge £26 or more About $37

    RasPiO Pro HAT Beta-tester. Early access to one of the production trial samples, followed up later with one of the full production batch.

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    Pledge £50 or more About $72

    5-pack RasPiO Pro HAT for Raspberry Pi. Five RasPiO Pro Hats.

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    Pledge £95 or more About $137

    10-pack RasPiO Pro HAT for Raspberry Pi. Ten RasPiO Pro Hats.

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Funding period

- (30 days)