Share this project

Done

Share this project

Done
LittleArm 2C - Mini Arduino Robot Arm for STEM and Hobby project video thumbnail
Replay with sound
Play with
sound
$11,751 pledged of $3,000 goal
backers

All or nothing. This project will only be funded if it reaches its goal by .

$11,751 pledged of $3,000 goal
backers

All or nothing. This project will only be funded if it reaches its goal by .

About this project

We want to build a STEM kit that gets kids excited about technology. So we have created the LittleArm, a simple, trainable, programmable, Arduino robot arm.

In 2016, a guy in a garage built a small robot arm using an Arduino Uno and his 3D printer. After tons of people asked him to turn it into a kit, Slant Concepts put it on Kickstarter. It was funded in under a week and hit more than 260% of it goal by the end.

The Original LittleArm
The Original LittleArm

After sending out those first arms, the feedback started coming in. We are smart enough to listen to the people who are using our stuff. So we took every comment and common problem and eliminated them with extreme prejudice. When we were done we had created a great machine. This is the LittleArm 2C. The desktop Arduino robot arm we created for kids to learn about robotics and technology.

The New LittleArms 2C
The New LittleArms 2C

 

The LittleArm 2C is designed to be the kit that kids can easily use so that STEM classes can implement more robotics curriculum. 

Students Working with the Original LittleArm
Students Working with the Original LittleArm

We are on Kickstarter now to fund the first run of these new arms and develop improved curriculum and content so teachers can easily utilize the LittleArm as a tool in classrooms, to get kids excited about tech.

See Who's Talking About the LittleArm
See Who's Talking About the LittleArm

Press Materials can be obtained here.

Stretch Goals

$5000 - Vote on Colors for the LittleArm

We will hold a vote for the top 3 color schemes that will be used on the LittleArms. 

$10,000 - Sensor Cube

When we hit $10,000 Multiple upgrade rewards will be unlocked that include the Sensor Cube. A module that contains 1 infrared and 2 ultrasonic proximity sensors. Control individual joints, set trigger events, and even create kinematic programs using it as a 3D controller. A great tool to introduce kids to various sensors and how they work.

Whats the "2C"

The 2C is actually very important. First of all, this is the second version of the LittleArm, hence the 2. The original LittleArm was launched in 2016 and the response has been amazing.

The C? Well, the "C" encompasses a lot of things. Here they are.

Clean - This are has no rough edges. We tweaked everything so that it is a perfect little machine. We even have loops to hold the wires against the arm, so they aren't flapping out in the breeze.

Children - The original LittleArm was built primarily for makers and kids with adult supervision. This Littlearm is so easy to put together that a 6 year-old can do it. We know because we spent hours in classrooms with kids teaching and watching the kids play with them. The 2C is practically child-proof.

Complete - This might be a stretch, but we don't know what we will tweak in the future. We consider it finished, except for electrical and software expansions.

Software 

Controllable and Trainable through USB or Bluetooth Apps

The LittleArm 2C uses the same free Desktop and Android App that we developed for the original LittleArm. They allow you to move the arm and record a set of waypoints that you can play back.

Kids learning about robotics for the first time will be introduced to basic functions and behaviors that all modern robots use.

The Free Windows Application
The Free Windows Application

The full LittleArm 2C kit comes with a Bluetooth module so that it can be controlled with an android smartphone using our free android App in the appstore.

 

Electrically, it is just plug and play. Plug in the servos to  the spot on the board labeled "Servos," and plug in the Bluetooth module where is says "Bluetooth," then give it some power. That is it. 

Plug and Play
Plug and Play

Reprogram with Arduino or Blockly

Since the entire LittleArm is built on the Arduino Nano, it can be reprogrammed from scratch using either the Arduino IDE or graphical tools like BlocklyDuino

Screenshot of BlocklyDuino Web Interface
Screenshot of BlocklyDuino Web Interface

Electronics

We are using a custom-designed PCB originally created for the MePed robot, which makes using the Arduino even easier. It also allows expansion to new sensors like ultrasonic and IR by just plugging them in. You can also re-write the Arduino code so that you can control two LittleArms with a single board.

The Custom Board for the LittleArm 2C
The Custom Board for the LittleArm 2C

Arduino Nano

The original LittleArm used an Uno. But we wanted the 2C to be more compact, so we used a Nano. We love the Arduino because it lets students and makers tap into the huge global community built around Adafruit. We don't want to hinder the creation and hacking of this thing. 

The Nano Nestled in Our New Board
The Nano Nestled in Our New Board

Bluetooth

Bluetooth now comes with every LittleArm kit with an electronics package. We are very proud to make this available with the new arms.

Mechanical Design Upgrades

The LittleArm 2C is the second generation of the LittleArm. What have we done? A Ton.

Faster 3D Printing

The LittleArm is the among the first really viable 3D printed robot arms. But with the 2C we have improved on that. We have shaved about 1 hour off the original estimated 8 hour print time. Anyone that gets the files will get the arm that much faster.

Integrated Wire Organizing loops

No longer will you have loops of wiring hanging around and getting jerked out.

No More Floppy Wires
No More Floppy Wires

Toughest Arm Ever

When we made the original LittleArm we designed it for makers. People that would appreciate the machine that they are building. But with the many schools that are building them, we knew we had to child-proof it some more.  

We have reinforced every joint so that kids can "work" with the LittleArm 2C with little risk of breaking it. There is no other arm as resilient as the 2C.

Major Improvement
Major Improvement

 

 project video thumbnail
Replay with sound
Play with
sound

Only 31 Parts (counting screws)

The LittleArm has the fewest number of parts of any other robot arm kit. to put it together it is basically just snap-and-go the screws just make sure it doesn't fly apart.

Every Part Fits Perfectly to Eliminate Fasteners
Every Part Fits Perfectly to Eliminate Fasteners

 

All the Screws in the Arm
All the Screws in the Arm

Operates in all Orientations

No other desktop robot arm can work in any orientation. Mount it where ever you want. (Note: Performance does decrease in other orientations)

 project video thumbnail
Replay with sound
Play with
sound

The Cover

Some folks don't want to constantly rewire the LittleArm. It is also a problem again with kids who have tendency to jerk wires out. So along with eliminating the original breadboard we have given the Assembled version of the Arm a cover to make it look a little cleaner and protect it a little.

The New Cover for the LittleArm
The New Cover for the LittleArm

Absolute Minimalism

There are a few makers that don't want the LittleArm to just be stand-alone and for the Arduino. So this time we have created the LittleArm 2C Brainless.

 The Brainless is literally just the arm. Makers can mount it to projects and use their own controller, at a minimal cost.

The LittleArm 2C Brainless
The LittleArm 2C Brainless

Support

To create a kit that is expected to be used in a STEM classroom you have to have great support. We built much of this with the original LittleArm. But we have gone even further with the 2C to make it is great STEM kit. 

Build in under 20 minutes  

The LittleArm 2C has 31 parts, including the 15 screws.  You just need fingers and one common screwdriver to put it together. Most of the servos snap into place without screws. The only thing you have to do is put the screws in the horns. This makes it great for classrooms where teachers are spread thin, so kids can operate independently.

Everything comes together easily
Everything comes together easily

 

 The Website

The LittleArm Website has become a hub for everything LittleArm. Spare parts are available to purchase and we have a deep and continuous stream of resources and tutorials coming out. If someone has a problem working with their LittleArm they can find a solution on the Website.

Other New Things

Waldo

One of the coolest extensions that we created as a tutorial for the LittleArm was the Waldo. A Waldo is motion capture device which lets you control the LittleArm. Whatever you do with the Waldo the LittleArm does.

We designed the Waldo as a neat project for makers. We are now making it available as an assembled piece of hardware.

The Waldo Rig
The Waldo Rig

 

 

Sensors

We have been proud of how the training allowed the LittleArm to be similar to industrial robot arms. But it has never had much sensing. So we have added an ultrasonic sensor that can be used as a trigger for the arm. Use it to sense when people come near or when a coffee mug is placed near the robot.

 project video thumbnail
Replay with sound
Play with
sound

How Good is the LittleArm C2?

Rewards

Littlearm Brainless

This kit is really for the hardcore makers out there that want to actually add the LittleArm to an existing project. We designed a minimalist base and got rid of the electronics. Stick it together and add it to whatever project you want, or plug in your own microcontrollers.

  • All 3D printed parts (minimalist base)
  • 4 micro servos
  • Standard actuated Gripper
  • Necessary fasteners and Hardware
Everything in the LittleArm Brainless
Everything in the LittleArm Brainless

LittleArm Full Kit

In the Full kit you have everything you need to get started with the LittleArm and get it up and moving within 15-30 minutes.

  • All 3D printed parts (excluding cover)
  • Standard Actuated Gripper
  • 4 micro-servos
  • The LittleArm Circuit Board
  • Arduino Nano
  • Bluetooth Module
  • Power Supply
  • USB Cable
  • All necessary fasteners and hardware
  • The apps are free so you get a link to download
Everything in the LittleArm Full Kit
Everything in the LittleArm Full Kit

LittleArm Assembled

Surprise, it is exactly the same as the LittleArm Full Kit, but we have put is all together for you. You just have to plug in the power supply and download the app to start using.

The Fully Assembled LittleArm C2
The Fully Assembled LittleArm C2

LittleArm Pro Set - $75

Fully Assembled LittleArm with ultrasonic sensor and extra gripper set. the gripper set includes, a hook, wrist, and pen clamp.

 

Extra Gripper Set
Extra Gripper Set

LittleArm Olympic - $92

Full LittleArm kit with ultrasonic Sensor, extra gripper set, battery pack, and assembled waldo motion capture rig. This if for the adventurous. 

 

Risks and challenges

The only delay that we may have is components may not arrive on time. But we have budgeted for that. With our last LittleArm campaign we delivered every order a full month or more ahead of time. We are all set to do the same.

Once we hit half of our goal we are going to fire up our printer farm and start making the new arms.

Learn about accountability on Kickstarter

FAQ

Support this project

  1. Make a pledge without a reward

    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  2. Select this reward

    Pledge $5 or more About $5

    Thank You

    You will get a shout-out on Twitter and be added to the Backer List on our website.

    Less
    Estimated delivery
    1 backer
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  3. Select this reward

    Pledge $35 or more About $35

    Early Bird Littlearm Brainless Kit

    The brainless kit has the minimalist base. Just assemble it and mount it to your own projects and controller.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (5 left of 10) 5 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  4. Select this reward

    Pledge $39 or more About $39

    Littlearm Brainless Kit

    The brainless kit has the minimalist base. Just assemble it and mount it to your own projects and controller.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  5. Select this reward

    Pledge $55 or more About $55

    LittleArm Maker Kit: Take 2

    For those that have a 3D printer. This includes all the servos, electronics, and fasteners to put a full LittleArm 2C together. It does not include the 3D printed parts. You will have to make them yourself. The files will be released during this campaign.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    2 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  6. Select this reward

    Pledge $65 or more About $65

    Full LittleArm Kit: Late Comer

    The entire LittleArm with bluetooth and cover. Assemble it and plug it in.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (10 left of 15) 5 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  7. Select this reward

    Pledge $72 or more About $72

    Full Assembled LittleArm: Late Comer

    The entire LittleArm with bluetooth and cover assembled and ready for action. All you have to do is plug it in and start using it.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  8. Select this reward

    Pledge $75 or more About $75

    LittleArm Pro Set

    LittleArm kit with extra grippers and ultrasonic sensor.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (1 left of 15) 14 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  9. Select this reward

    Pledge $80 or more About $80

    LittleArm Pro Set: Take Two

    LittleArm kit with extra grippers and ultrasonic sensor.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (10 left of 10) 0 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  10. Select this reward

    Pledge $85 or more About $85

    Stretch Goal: Pro Set with Sensor Cube

    LittleArm kit with extra grippers and Sensor Cube

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (11 left of 15) 4 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  11. Select this reward

    Pledge $115 or more About $115

    LittleArm Olympic Take Three

    Full LittleArm 2C kit, with Waldo, ultrasonic sensor, battery pack, and extra grippers

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (3 left of 15) 12 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  12. Select this reward

    Pledge $115 or more About $115

    LittleArm Olympic: Take Four

    Full LittleArm 2C kit, with Waldo, ultrasonic sensor, battery pack, and extra grippers.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (9 left of 10) 1 backer
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  13. Select this reward

    Pledge $125 or more About $125

    Stretch Goal: LittleArm Mega Kit

    Get the Sensor Cube.
    Full LittleArm 2C kit, with Waldo, battery pack, Sensor Cube, and extra grippers.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (7 left of 15) 8 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  14. Select this reward

    Pledge $300 or more About $300

    Group Pack

    5 full LittleArm kits for small classes and maker groups. Or maybe the passionate lone roboticist.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  15. Select this reward

    Pledge $560 or more About $560

    LittleArm Classroom Set

    10 Full LittleArms ready to assemble to get a classroom started building and controlling robots.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited (10 left of 10) 0 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  16. All gone!
  17. Reward no longer available

    Pledge $49 or more About $49

    LittleArm Maker Kit

    For those that have a 3D printer. This includes all the servos, electronics, and fasteners to put a full LittleArm 2C together. It does not include the 3D printed parts. You will have to make them yourself. The files will be released during this campaign.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  18. Reward no longer available

    Pledge $52 or more About $52

    Early Bird Full LittleArm Kit

    Everything to build the LittleArm and start using it. Arduino, PCB, usb cord, bluetooth, etc.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  19. Reward no longer available

    Pledge $59 or more About $59

    Early Bird Full Assembled LittleArm

    Everything

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  20. Reward no longer available

    Pledge $60 or more About $60

    Full LittleArm Kit

    The entire LittleArm with bluetooth and cover assembled and ready for action. All you have to do is plug it in and start using it.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 15 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  21. Reward no longer available

    Pledge $69 or more About $69

    Full Assembled LittleArm

    The entire LittleArm with bluetooth and cover assembled and ready for action. All you have to do is plug it in and start using it.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  22. Reward no longer available

    Pledge $92 or more About $92

    LittleArm Olympic

    Full LittleArm 2C kit, with Waldo, ultrasonic sensor, battery pack, and extra grippers

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  23. Reward no longer available

    Pledge $105 or more About $105

    LittleArm Olympic Take Two

    Full LittleArm 2C kit, with Waldo, ultrasonic sensor, battery pack, and extra grippers

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 10 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.