# Trash-Built Robotic Fish

## Overview

https://youtu.be/ezp62WApoMU

Trash Fish is a fun and inventive use of scrap materials, brought to life by Circuit Playground Express!

This glowing mechanical creature is programmed using [MakeCode](https://learn.adafruit.com/makecode), making it accessible for beginners and easy to adapt. Aside from the electronics, this fish can be created using household materials and requires no soldering.

### Circuit Playground Express

[Circuit Playground Express](https://www.adafruit.com/product/3333)
 **Circuit Playground Express** is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to...

In Stock
[Buy Now](https://www.adafruit.com/product/3333)
[Related Guides to the Product](https://learn.adafruit.com/products/3333/guides)
![A Black woman's manicured hand holds a round microcontroller with lit up LEDs.](https://cdn-shop.adafruit.com/640x480/3333-05.jpg)

### Adafruit NeoPixel LED Strip w/ Alligator Clips - 60 LED/m

[Adafruit NeoPixel LED Strip w/ Alligator Clips - 60 LED/m](https://www.adafruit.com/product/3811)
Adding glowy color to your projects has never been easier: no more soldering or stripping wires, clip 'em on and glow! This **Adafruit NeoPixel LED Strip with Alligator Clips** has **30 total LEDs** in a **"60 LED per meter" spacing** , and...

In Stock
[Buy Now](https://www.adafruit.com/product/3811)
[Related Guides to the Product](https://learn.adafruit.com/products/3811/guides)
![Adafruit NeoPixel LED 0.5 meter Strip with Alligator Clips wired to Circuit Playground, lighting up rainbow](https://cdn-shop.adafruit.com/product-videos/640x480/3811-06.jpg)

### Continuous Rotation Micro Servo

[Continuous Rotation Micro Servo](https://www.adafruit.com/product/2442)
Need to make a _tiny_ robot? This little micro servo rotates 360 degrees fully forward or backward, instead of moving to a single position. You can use any servo code, hardware, or library to control these servos. Good for making simple moving robots. Comes with five horns and...

Out of Stock
[Buy Now](https://www.adafruit.com/product/2442)
[Related Guides to the Product](https://learn.adafruit.com/products/2442/guides)
![Demo Video of the Continuous Rotation Micro Servo with a "t" shaped propeller connected to the gear and spinning.](https://cdn-shop.adafruit.com/product-videos/640x480/2442-02.jpg)

### Small Alligator Clip to Male Jumper Wire Bundle - 6 Pieces

[Small Alligator Clip to Male Jumper Wire Bundle - 6 Pieces](https://www.adafruit.com/product/3448)
When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These compact jumper cables have a premium male header on one end and a grippy mini alligator clip on the...

Out of Stock
[Buy Now](https://www.adafruit.com/product/3448)
[Related Guides to the Product](https://learn.adafruit.com/products/3448/guides)
![Group of Small Alligator Clip to Male Jumper Wires](https://cdn-shop.adafruit.com/640x480/3448-00.jpg)

### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

[Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)...

In Stock
[Buy Now](https://www.adafruit.com/product/3898)
[Related Guides to the Product](https://learn.adafruit.com/products/3898/guides)
![Slim Lithium Ion Polymer Battery 3.7v 400mAh with JST 2-PH connector and short cable](https://cdn-shop.adafruit.com/640x480/3898-05.jpg)

### JST 2-pin Extension Cable with On/Off Switch - JST PH2

[JST 2-pin Extension Cable with On/Off Switch - JST PH2](https://www.adafruit.com/product/3064)
By popular request - we now have a way you can turn on-and-off Lithium Polymer batteries without unplugging them.

This **PH2 Female/Male JST 2-pin Extension Cable ** comes with an in-line **Switch** - click once to turn on, click again to turn off....

In Stock
[Buy Now](https://www.adafruit.com/product/3064)
[Related Guides to the Product](https://learn.adafruit.com/products/3064/guides)
![Top view shot of JST 2-pin Extension Cable with On/Off Switch.](https://cdn-shop.adafruit.com/640x480/3064-02.jpg)

### USB cable - USB A to Micro-B

[USB cable - USB A to Micro-B](https://www.adafruit.com/product/592)
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller

Approximately 3 feet / 1 meter long

In Stock
[Buy Now](https://www.adafruit.com/product/592)
[Related Guides to the Product](https://learn.adafruit.com/products/592/guides)
![USB cable - USB A to Micro-B - 3 foot long](https://cdn-shop.adafruit.com/640x480/592-01.jpg)

### Adafruit Micro Lipo - USB LiIon/LiPoly charger

[Adafruit Micro Lipo - USB LiIon/LiPoly charger](https://www.adafruit.com/product/1304)
Oh so adorable, this is the tiniest little lipo charger, so handy you can keep it any project box! Its also easy to use. Simply plug in the gold plated contacts into any USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are...

In Stock
[Buy Now](https://www.adafruit.com/product/1304)
[Related Guides to the Product](https://learn.adafruit.com/products/1304/guides)
![Top view of Adafruit Micro Lipo - USB LiIon/LiPoly charger - v1 above a 2-pin JST cable.](https://cdn-shop.adafruit.com/640x480/1304-06.jpg)

## Other Materials

- Cling wrap or scrap plastic sheet
- Clear packing tape
- Scrap corrugated cardboard
- [Hot glue gun](https://www.amazon.com/dp/B006IY359K/ref=cm_sw_r_tw_dp_U_x_K0DeCbCR4A6B5) +  [Hot glue sticks](https://www.amazon.com/Surebonder-PRO2-100-Watt-High-Temperature/dp/B00627G6QC/ref=sr_1_6?s=hi&ie=UTF8&qid=1548380526&sr=1-6&keywords=10+inch+glue+sticks) 
- Pipe cleaners
- Plastic straws
- [Double sided tape](https://www.amazon.com/dp/B003W0R4PE/ref=cm_sw_r_tw_dp_U_x_Y2SGBb4DV10TX)
- Hobby knife
- Bamboo skewers

![](https://cdn-learn.adafruit.com/assets/assets/000/076/148/medium800thumb/makecode_Trash_fish_hero2.2019-05-23_17_57_03.jpg?1559066360)

# Trash-Built Robotic Fish

## MakeCode

## Getting Familiar

**Microsoft MakeCode for Adafruit is ** a web-based code editor that provides a block editor, similar to Scratch or Code.org, and also a JavaScript editor for more advanced users.

If you've never used the Circuit Playground Express with MakeCode before, [this guide is a good place to start](https://makecode.adafruit.com/courses/maker/general/coding).

![](https://cdn-learn.adafruit.com/assets/assets/000/075/747/medium800/makecode.jpg?1558120877)

https://makecode.adafruit.com/13649-13033-11597-90683

## Uploading Code to Circuit Playground Express

To upload code to Circuit Playground Express, follow these instructions:

1) Connect your Circuit Playground Express to your computer using a micro USB cable and press the small reset button in the center of the board. All the LEDs will flash  **red ** briefly **, then turn green. ** Your computer should now show a removable drive called  **CPLAYBOOT. **

2) Click the  **Download**  button in the code window below to download the ** .UF2 file**  to your computer.

3) Now ** drag and drop the .UF2 file onto the CPLAYBOOT**   **drive**  in your computer's file explorer or finder.

Once the file is dragged onto  **CPLAYBOOT**  the drive will automatically eject itself (your computer may give you a "failed to eject drive correctly" error, you can ignore this). The code is now on your Circuit Playground Express and ready to run!

Note: If you get a drive named  **CIRCUITPY** , no worries! Press the reset button  **twice**  to get a flash drive named  **CPLAYBOOT**. The project will not run if copied onto the  **CIRCUITPY**  drive as it is for CircuitPython.

![](https://cdn-learn.adafruit.com/assets/assets/000/076/253/medium800/makecode_Screen_Shot_2019-05-31_at_1.17.25_PM.png?1559323215)

## Editing the Code

If you'd like to play with this code, click  **Edit**  in MakeCode and a new window will open in which you can create your own version.

MakeCode is fun to work with and easy to customize, allowing you to get some great results with just a little trial-and-error.

If you'd like to program your fish to swim faster or slower, you can change the number in the `servo write pin A1` block (the further from 90 the faster the servo will spin). You can see in the example below that the fins are programmed to flap quickly when the slide switch on the board is moved right, and move slowly or stop altogether when the switch is moved left.

![](https://cdn-learn.adafruit.com/assets/assets/000/076/261/medium800/makecode_Screen_Shot_2019-05-31_at_1.46.25_PM.png?1559324858)

The rate at which your fish changes color can also be modified by changing the `pause` value in the `forever` block.

![](https://cdn-learn.adafruit.com/assets/assets/000/076/255/medium800/makecode_Screen_Shot_2019-05-31_at_1.23.10_PM.png?1559323486)

# Trash-Built Robotic Fish

## Circuit Diagram

The circuit for this project is quite simple, just connect the  **Vout**  pad on Circuit Playground Express (CPX) to the servo's red wire, the  **A1**  pad to the yellow wire, and the  **GND**  pad to the brown wire. 

The [alligator clip-to-male jumper wire](https://www.adafruit.com/product/3448) connectors are great for connecting servo motors to CPX.

![](https://cdn-learn.adafruit.com/assets/assets/000/075/924/medium800/makecode_CPX_servo_battery_neo_bb.png?1558646884)

## Circuit, Simplified

If you'd like to forgo the NeoPixel strip and just create a mechanical swimming fish, you can opt to connect just the servo to your Circuit Playground Express, clipping the alligator clips to pads **Vout** , **A1** , and **GND**.

![](https://cdn-learn.adafruit.com/assets/assets/000/075/754/medium800/makecode_IMG_2313.jpg?1558122427)

## Powering the Fish

Circuit Playground Express can use a variety of power sources, anywhere between 3V-5V is safe. These compact [400mAh lithium ion polymer batteries](https://www.adafruit.com/product/3898) are excellent for powering small projects like this. 

A set of [3 AAA batteries](https://www.adafruit.com/product/3520) also provides ample power, if that option is more convenient. If you're using a [AAAx3 battery pack](https://www.adafruit.com/product/727), check that the switch on the ** ** battery pack is set to "ON" when you want to power the boat.

### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

[Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)...

In Stock
[Buy Now](https://www.adafruit.com/product/3898)
[Related Guides to the Product](https://learn.adafruit.com/products/3898/guides)
![Slim Lithium Ion Polymer Battery 3.7v 400mAh with JST 2-PH connector and short cable](https://cdn-shop.adafruit.com/640x480/3898-05.jpg)

### Adafruit Micro Lipo - USB LiIon/LiPoly charger

[Adafruit Micro Lipo - USB LiIon/LiPoly charger](https://www.adafruit.com/product/1304)
Oh so adorable, this is the tiniest little lipo charger, so handy you can keep it any project box! Its also easy to use. Simply plug in the gold plated contacts into any USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are...

In Stock
[Buy Now](https://www.adafruit.com/product/1304)
[Related Guides to the Product](https://learn.adafruit.com/products/1304/guides)
![Top view of Adafruit Micro Lipo - USB LiIon/LiPoly charger - v1 above a 2-pin JST cable.](https://cdn-shop.adafruit.com/640x480/1304-06.jpg)

# Trash-Built Robotic Fish

## Trash Fish Assembly

## Create Shell

Wrap a ball in a layer of thin plastic. A large mixing bowl also works if a ball isn't available.

Cover in successive layers of clear masking tape. Build up about 6-7 layers of tape, or until the shell feels thick and sturdy.

![makecode_IMG_4246.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/209/medium640/makecode_IMG_4246.jpg?1559169296)

![makecode_IMG_4248.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/210/medium640/makecode_IMG_4248.jpg?1559234300)

![makecode_IMG_4250.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/224/medium640/makecode_IMG_4250.jpg?1559236562)

Warning: 

## Cut in Half

Use scissors to cut around the middle, creating two halves.

![makecode_IMG_4252.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/225/medium640/makecode_IMG_4252.jpg?1559236644)

![makecode_IMG_4251.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/226/medium640/makecode_IMG_4251.jpg?1559236661)

![makecode_IMG_4254.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/227/medium640/makecode_IMG_4254.jpg?1559236674)

![makecode_IMG_4255.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/228/medium640/makecode_IMG_4255.jpg?1559236685)

## Create your desired shape

Cut the two hemispheres into football shapes by trimming some material off each side along a curved line.

Cut some indents into the top, bottom, and back of the fish shell. These indents will provide openings through which the fins can stick out.

![makecode_IMG_4258.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/229/medium640/makecode_IMG_4258.jpg?1559238935)

![makecode_IMG_4261.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/230/medium640/makecode_IMG_4261.jpg?1559242196)

![makecode_IMG_4263.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/231/medium640/makecode_IMG_4263.jpg?1559242937)

![makecode_IMG_4481.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/232/medium640/makecode_IMG_4481.jpg?1559242948)

## Fisheye Hole

To give your fish a glowing electronic eye, we'll cut a hole in which to install the Circuit Playground Express board.

Trace outline of CPX on the inside of the fish shell.

Use [diagonal cutters](https://www.adafruit.com/product/152) to cut a hole, staying 1/4" inside the outline. 

![makecode_IMG_4485.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/263/medium640/makecode_IMG_4485.jpg?1559325297)

![makecode_IMG_4486.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/264/medium640/makecode_IMG_4486.jpg?1559325312)

![makecode_IMG_4487.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/265/medium640/makecode_IMG_4487.jpg?1559325323)

![makecode_IMG_4489.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/266/medium640/makecode_IMG_4489.jpg?1559325380)

## Trash Fins

Use pipe cleaners and masking tape to create some fins for your fish.

Sandwich a trimmed array of pipe cleaners between two sheets of masking tape.

Trim around the edges to achieve the desired size and shape.

![makecode_IMG_4358.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/280/medium640/makecode_IMG_4358.jpg?1559331184)

![makecode_IMG_4367.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/281/medium640/makecode_IMG_4367.jpg?1559331202)

![makecode_IMG_4368.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/282/medium640/makecode_IMG_4368.jpg?1559331251)

![makecode_IMG_4370.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/283/medium640/makecode_IMG_4370.jpg?1559331289)

![makecode_IMG_4371.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/284/medium640/makecode_IMG_4371.jpg?1559331344)

![makecode_IMG_4373.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/285/medium640/makecode_IMG_4373.jpg?1559331494)

Set these fins aside, they will be glued onto the the fish in the final steps. 

![](https://cdn-learn.adafruit.com/assets/assets/000/076/287/medium800thumb/makecode_IMG_4385_copy.2019-05-31_14_44_49.jpg?1559331647)

## Fish Frame

Create a frame to hold the fins using a piece of scrap cardboard.

Place a section of a plastic straw over a piece of wooden skewer. Use hot glue to stick this to the frame. 

![makecode_IMG_4361.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/233/medium640/makecode_IMG_4361.jpg?1559243040)

![makecode_IMG_4363.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/234/medium640/makecode_IMG_4363.jpg?1559243053)

![makecode_IMG_4365.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/235/medium640/makecode_IMG_4365.jpg?1559243061)

Warning: 

## Fin Hinge

Glue a small length of plastic straw onto the hinge.

Next, use hot glue to add some paper fin supports at 90 degrees to the straw attachment.

These paper supports will serve to hold and stiffen the fish's fins when the time comes.

![makecode_IMG_4411.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/236/medium640/makecode_IMG_4411.jpg?1559243306)

![makecode_IMG_4415.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/237/medium640/makecode_IMG_4415.jpg?1559243374)

![makecode_IMG_4414.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/238/medium640/makecode_IMG_4414.jpg?1559243507)

## Prep Servo

Unbend a paper clip and create an "L" shape.

Screw the wheel attachment to the servo horn.

Glue the section of the paper clip onto the servo wheel.

![makecode_IMG_4419.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/270/medium640/makecode_IMG_4419.jpg?1559326294)

![makecode_IMG_4420.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/271/medium640/makecode_IMG_4420.jpg?1559326866)

![makecode_IMG_4010.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/303/medium640/makecode_IMG_4010.jpg?1559333621)

![makecode_IMG_4421.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/304/medium640/makecode_IMG_4421.jpg?1559333669)

## Install Servo

Cut a hole for the continuous rotation servo motor and glue it in place.

Poke three straws onto the paper clip. Trim each straw so they extend just an inch or so beyond where they will connect to the fins. 

![makecode_IMG_4426.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/267/medium640/makecode_IMG_4426.jpg?1559325696)

![makecode_IMG_4427.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/268/medium640/makecode_IMG_4427.jpg?1559325825)

![makecode_IMG_4429.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/269/medium640/makecode_IMG_4429.jpg?1559325993)

## Final Connections

Cut a small slit down the middle of the straw. Use hot glue to clamp it around the other straw. 

Do this for each fin, then use some hot glue to affix the fins to the paper fin supports that we added earlier.

![makecode_IMG_4432.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/273/medium640/makecode_IMG_4432.jpg?1559327619)

![makecode_IMG_4492.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/274/medium640/makecode_IMG_4492.jpg?1559327678)

Your frame should now be ready to install inside the fish shell!

![](https://cdn-learn.adafruit.com/assets/assets/000/076/286/medium800thumb/makecode_SZWX4017.2019-05-17_15_09_34.jpg?1559331560)

## Install Electronics

Use hot glue to tack the Circuit Playground Express in place inside the fish.

Loop your strip of NeoPixels around the inside of the fish shell, holding each end in place with a liberal amount of hot glue.

![makecode_IMG_4493.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/295/medium640/makecode_IMG_4493.jpg?1559332263)

![makecode_IMG_4495.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/296/medium640/makecode_IMG_4495.jpg?1559332278)

![makecode_IMG_4500.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/297/medium640/makecode_IMG_4500.jpg?1559332294)

![makecode_IMG_4498.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/298/medium640/makecode_IMG_4498.jpg?1559332302)

Finally, bring the two halves of the fish together, enclosing the electronics inside.

Use some large dabs of hot glue around the outside edge to hold the halves together. Glueing a [JST extension power switch](https://www.adafruit.com/product/3064) to the underside of the fish can help make it easy to turn on and off.

![](https://cdn-learn.adafruit.com/assets/assets/000/076/275/medium800thumb/makecode_large.2019-05-31_14_59_02.jpg?1559329346)

## Troubleshooting

**Problem** : My motor doesn't turn!

**Solution** : Make sure that your Circuit Playground Express is connected to a power source (anywhere between 3V-5V is safe). If you're using a AAAx3 battery pack, check that the switch on the ** ** battery pack is set to "ON".

**Problem: ** My Circuit Playground Express doesn't show up as  **CPLAYBOOT**

**Solutions:**

- Be sure you have a Circuit Playground Express.  The Classic will not work with MakeCode.
- Some USB cables are "charge-only" and won't pass data. Try using a different USB cable and try using a different USB port on your computer.  
- With the Circuit Playground plugged into your computer with a micro USB cable,  **click the small reset button**  in the center of the board. The lights should all turn green. If they don't, try double-clicking the reset button.

If things still aren't working, head over to the Intro to [Circuit Playground Express](https://learn.adafruit.com/adafruit-circuit-playground-express) guide for more suggestions.

## Motor Speed Adjustment

 

If you find your motor doesn't come to a full stop, you can fix this by making tiny adjustments to the potentiometer on the bottom of the motor.

![makecode_IMG_4142.jpg](https://cdn-learn.adafruit.com/assets/assets/000/076/307/medium640/makecode_IMG_4142.jpg?1559334202)


## Featured Products

### Circuit Playground Express

[Circuit Playground Express](https://www.adafruit.com/product/3333)
 **Circuit Playground Express** is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and made it even better! Not only did we pack even more sensors in, we also made it even easier to...

In Stock
[Buy Now](https://www.adafruit.com/product/3333)
[Related Guides to the Product](https://learn.adafruit.com/products/3333/guides)
### Continuous Rotation Micro Servo

[Continuous Rotation Micro Servo](https://www.adafruit.com/product/2442)
Need to make a _tiny_ robot? This little micro servo rotates 360 degrees fully forward or backward, instead of moving to a single position. You can use any servo code, hardware, or library to control these servos. Good for making simple moving robots. Comes with five horns and...

Out of Stock
[Buy Now](https://www.adafruit.com/product/2442)
[Related Guides to the Product](https://learn.adafruit.com/products/2442/guides)
### Small Alligator Clip to Male Jumper Wire Bundle - 6 Pieces

[Small Alligator Clip to Male Jumper Wire Bundle - 6 Pieces](https://www.adafruit.com/product/3448)
When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These compact jumper cables have a premium male header on one end and a grippy mini alligator clip on the...

Out of Stock
[Buy Now](https://www.adafruit.com/product/3448)
[Related Guides to the Product](https://learn.adafruit.com/products/3448/guides)
### Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh

[Lithium Ion Polymer Battery Ideal For Feathers - 3.7V 400mAh](https://www.adafruit.com/product/3898)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of **400mAh** for a total of about 1.9 Wh. If you need a larger (or smaller!)...

In Stock
[Buy Now](https://www.adafruit.com/product/3898)
[Related Guides to the Product](https://learn.adafruit.com/products/3898/guides)
### USB cable - USB A to Micro-B

[USB cable - USB A to Micro-B](https://www.adafruit.com/product/592)
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or microcontroller

Approximately 3 feet / 1 meter long

In Stock
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[Related Guides to the Product](https://learn.adafruit.com/products/592/guides)
### Adafruit NeoPixel LED Strip w/ Alligator Clips - 60 LED/m

[Adafruit NeoPixel LED Strip w/ Alligator Clips - 60 LED/m](https://www.adafruit.com/product/3811)
Adding glowy color to your projects has never been easier: no more soldering or stripping wires, clip 'em on and glow! This **Adafruit NeoPixel LED Strip with Alligator Clips** has **30 total LEDs** in a **"60 LED per meter" spacing** , and...

In Stock
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[Related Guides to the Product](https://learn.adafruit.com/products/3811/guides)
### Adafruit Micro Lipo - USB LiIon/LiPoly charger

[Adafruit Micro Lipo - USB LiIon/LiPoly charger](https://www.adafruit.com/product/1304)
Oh so adorable, this is the tiniest little lipo charger, so handy you can keep it any project box! Its also easy to use. Simply plug in the gold plated contacts into any USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There are...

In Stock
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[Related Guides to the Product](https://learn.adafruit.com/products/1304/guides)

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