# Bluetooth Turtle Bot with CircuitPython and Crickit ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/084/078/medium800/circuitpython_guideimage2.jpg?1573592135) https://youtu.be/Af231qJsXtM You can make your own adorable turtle bot and control it from your mobile device using Bluetooth LE! This cute little bot uses the Circuit Playground Bluefruit as the brains and BLE communicator, and the Crickit platform as the brawn to drive two DC gearhead motors. You can drive forward and backward, turn left and right, and even change the colors of the built-in NeoPixel ring on the Circuit Playground Bluefruit, all from the Adafruit Bluefruit app for iOS and Android. Plus you can get crafty with the felt or foam and decorate this cardboard chassis bot like a cute turtle! ## Parts ### Circuit Playground Bluefruit - Bluetooth® Low Energy [Circuit Playground Bluefruit - Bluetooth® Low Energy](https://www.adafruit.com/product/4333) **Circuit Playground Bluefruit** is our third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. We've taken the popular Circuit Playground Express and made it even better! Now the main chip is an nRF52840... Out of Stock [Buy Now](https://www.adafruit.com/product/4333) [Related Guides to the Product](https://learn.adafruit.com/products/4333/guides) ![shot of a Black woman's neon-green manicured hand holding up a Circuit Playground Bluefruit glowing rainbow LEDs.](https://cdn-shop.adafruit.com/640x480/4333-11.jpg) ### Adafruit CRICKIT for Circuit Playground Express [Adafruit CRICKIT for Circuit Playground Express](https://www.adafruit.com/product/3093) Sometimes we wonder if robotics engineers ever watch movies. If they did, they'd know that making robots into servants always ends up in a robot rebellion. Why even go down that path? Here at Adafruit, we believe in making robots our  **friends!** So if you find... In Stock [Buy Now](https://www.adafruit.com/product/3093) [Related Guides to the Product](https://learn.adafruit.com/products/3093/guides) ![Top down view of a Adafruit CRICKIT for Circuit Playground Express with a circular board connected. ](https://cdn-shop.adafruit.com/640x480/3093-07.jpg) ### USB to 2.1mm Male Barrel Jack Cable [USB to 2.1mm Male Barrel Jack Cable](https://www.adafruit.com/product/2697) There's two standard ways to power electronics - USB or 5.5mm/2.1mm DC barrel jack. This or that! With this **USB to 2.1mm Male Barrel Jack Cable** , you can now power 5V DC powered electronics that have a DC jack from a USB jack with a handy 1 meter long... Out of Stock [Buy Now](https://www.adafruit.com/product/2697) [Related Guides to the Product](https://learn.adafruit.com/products/2697/guides) ![Shot of a coiled USB to 2.1mm Male Barrel Jack Cable.](https://cdn-shop.adafruit.com/640x480/2697-01.jpg) ### Part: DC Gearbox Motor quantity: 2 "TT Motor" - 200RPM - 3 to 6VDC [DC Gearbox Motor](https://www.adafruit.com/product/3777) ### Part: Orange and Clear TT Motor Wheel quantity: 2 for TT DC Gearbox Motor [Orange and Clear TT Motor Wheel](https://www.adafruit.com/product/3766) ### Part: Adafruit Pocket Screwdriver quantity: 1 Black [Adafruit Pocket Screwdriver](https://www.adafruit.com/product/3284) ### Part: Black and White Eye Stickers quantity: 1 eyes! [Black and White Eye Stickers](https://www.adafruit.com/product/3840) ## Materials and Tools - Medium corrugated cardboard box - Ruler - Hobby knife or scissors - Double stick foam tape - Hot melt glue and gun # Bluetooth Turtle Bot with CircuitPython and Crickit ## Build the Turtle Bot # Circuit Build ## CPB to Crickit Connect the six hex standoffs to the Cricket as shown, using the screws fitted through the back of the board. Finger tight is fine, you don't need to crank them down too hard and risk damage to the board! Then, set the Circuit Playground Bluefruit on top of the board with the shown orientation -- The Crickit DC power jack points north and the CPB USB port points north.  (You may reverse both directions if you are in Australia.) ![micropython___circuitpython_IMG_9239.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/893/medium640/micropython___circuitpython_IMG_9239.jpg?1573241772) ![micropython___circuitpython_IMG_9240.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/894/medium640/micropython___circuitpython_IMG_9240.jpg?1573241779) ![micropython___circuitpython_IMG_9241.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/895/medium640/micropython___circuitpython_IMG_9241.jpg?1573241790) ![micropython___circuitpython_IMG_9242.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/896/medium640/micropython___circuitpython_IMG_9242.jpg?1573241801) ![micropython___circuitpython_IMG_9243.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/897/medium640/micropython___circuitpython_IMG_9243.jpg?1573241807) ![micropython___circuitpython_IMG_9238.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/892/medium640/micropython___circuitpython_IMG_9238.jpg?1573241766) ## Motors to Crickit Next, plug the motor wires into the Crickit's Motor 1 and Motor 2 ports - Left motor goes to Motor 1 port - Right motor goes to Motor 2 port - Follow the pictures for black and red wire assignments -- getting this backwards isn't a big deal, because it can always be reversed in software! ![micropython___circuitpython_IMG_9245.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/898/medium640/micropython___circuitpython_IMG_9245.jpg?1573242381) ![micropython___circuitpython_IMG_9246.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/899/medium640/micropython___circuitpython_IMG_9246.jpg?1573242446) ## Moar Powaaaarrr! The final thing we'll need is a way to provide power. The Crickit would like to have 5VDC at 1A available for all of its duties, including powering the CPB and driving the motors. The 5V USB phone-charger style battery is perfect, except for one thing -- how to connect it? Thankfully, the USB Type-A to 2.1mm center positive cable is just the thing! Plug the USB end into the battery and the barrel plug into the Crickit's barrel jack. ![micropython___circuitpython_IMG_9248.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/901/medium640/micropython___circuitpython_IMG_9248.jpg?1573242876) Here's the final circuit ready to go! ![](https://cdn-learn.adafruit.com/assets/assets/000/083/903/medium800/micropython___circuitpython_IMG_9249.jpg?1573243063) # Chassis ## Form the Chassis A piece of corrugated cardboard is perfect for building your turtle bot chassis! Draw some guides for cutting your chassis -- it doesn't have to match this one exactly, just so long as there's room for the parts you can get creative with it! Looking through the rest of this page will give you an idea of the size needed for proper parts placement. Use a hobby knife or scissors to cut the chassis to shape ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3451_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/904/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3451_2k.jpg?1573245330) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3459_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/905/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3459_2k.jpg?1573245336) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3460_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/906/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3460_2k.jpg?1573245343) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3463_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/907/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3463_2k.jpg?1573245351) ## Attach Motors Use double stick foam tape to connect the motors to the underside of the chassis Keep them straight and even with each other -- the cart will drive straighter than if they're offset. ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3465_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/908/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3465_2k.jpg?1573245437) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3466_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/909/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3466_2k.jpg?1573245445) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3467_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/910/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3467_2k.jpg?1573245451) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3468_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/911/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3468_2k.jpg?1573245457) ## Add Wheels Place the big honkin orange wheels onto the motor shafts as shown! ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3476_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/912/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3476_2k.jpg?1573248115) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3477_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/913/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3477_2k.jpg?1573248122) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3479_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/914/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3479_2k.jpg?1573248129) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3478_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/915/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3478_2k.jpg?1573248135) ## Optional Bumper This step is optional, but you may find it helpful. You can add a cardboard bumper to the front of the bumper bot so that it won't accidentally drive over lower obstacles that are cleared by the chassis. Cut a length of cardboard that is a bit wider than the cart chassis and that reaches from the front down about 3/4 of the way to the ground Bend the cardboard to fit the curve of your cart's front Glue the joint and then connect the two pieces, holding them in place while the glue cures ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3529_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/921/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3529_2k.jpg?1573249838) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3531_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/922/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3531_2k.jpg?1573249856) ![micropython___circuitpython_robotics___cnc_bumperBot_IMG_3536_2k.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/923/medium640/micropython___circuitpython_robotics___cnc_bumperBot_IMG_3536_2k.jpg?1573249880) ## Turtle Decoration Cut out the body of the turtle from some EVA foam or green felt as shown. Bonus points for eye stickers, googly eyes, or draw or paint on your own creation! Use the wheels as a guide, tracing around them to create a pair of cutouts as shown here. You can use double stick tape or another adhesive to affix the turtle pattern to the cardboard chassis. ![micropython___circuitpython_IMG_9188.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/868/medium640/micropython___circuitpython_IMG_9188.jpg?1573182740) ![micropython___circuitpython_IMG_9189.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/869/medium640/micropython___circuitpython_IMG_9189.jpg?1573182766) ![micropython___circuitpython_IMG_9190.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/870/medium640/micropython___circuitpython_IMG_9190.jpg?1573182893) ![micropython___circuitpython_IMG_9193.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/871/medium640/micropython___circuitpython_IMG_9193.jpg?1573182928) ![micropython___circuitpython_IMG_9195.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/872/medium640/micropython___circuitpython_IMG_9195.jpg?1573182958) ## Attach Crickit Use adhesive-backed Velcro tape to attach the CPB/Crickit board sandwich on top of the turtle layer. Route the power cable up through a wheel well and attach the battery underneath, between the motors, using some double-stick foam tape or Velcro. ![micropython___circuitpython_IMG_9200.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/919/medium640/micropython___circuitpython_IMG_9200.jpg?1573249381) ![micropython___circuitpython_IMG_9202.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/875/medium640/micropython___circuitpython_IMG_9202.jpg?1573226886) ![micropython___circuitpython_IMG_9203.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/876/medium640/micropython___circuitpython_IMG_9203.jpg?1573226897) ![](https://cdn-learn.adafruit.com/assets/assets/000/083/917/medium800/micropython___circuitpython_IMG_9204.jpg?1573249299) ## Flippers Add to the charm of your little robot friend with some flipper feet! If you elect to add these flippers, simply trim off the back feet from the green foam/felt. Draw out a flipper shape on some EVA foam and cut it out with scissors or a hobby knife. Use some hot glue to affix the flipper to one of the wheel hubs as shown. Repeat this step for the other side. ![micropython___circuitpython_IMG_9217.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/925/medium640/micropython___circuitpython_IMG_9217.jpg?1573249947) ![micropython___circuitpython_IMG_9218.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/926/medium640/micropython___circuitpython_IMG_9218.jpg?1573249954) ![micropython___circuitpython_IMG_9221.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/928/medium640/micropython___circuitpython_IMG_9221.jpg?1573250024) ![micropython___circuitpython_IMG_9226.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/929/medium640/micropython___circuitpython_IMG_9226.jpg?1573250033) ![micropython___circuitpython_IMG_9227.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/930/medium640/micropython___circuitpython_IMG_9227.jpg?1573250039) Our turtle is ready for coding! ![](https://cdn-learn.adafruit.com/assets/assets/000/083/965/medium800/micropython___circuitpython_guideimage2.jpg?1573250170) # Bluetooth Turtle Bot with CircuitPython and Crickit ## CircuitPython on Circuit Playground Bluefruit # Install or Update CircuitPython Follow this quick step-by-step to install or update CircuitPython on your Circuit Playground Bluefruit. [Download the latest version of CircuitPython for this board via circuitpython.org](https://circuitpython.org/board/circuitplayground_bluefruit/) **Click the link above and download the latest UF2 file** Download and save it to your Desktop (or wherever is handy) ![adafruit_products_CPB_Download_UF2.png](https://cdn-learn.adafruit.com/assets/assets/000/080/530/medium640/adafruit_products_CPB_Download_UF2.png?1567715178) Plug your Circuit Playground Bluefruit into your computer using a known-good data-capable USB cable. **A lot of people end up using charge-only USB cables and it is very frustrating! So make sure you have a USB cable you know is good for data sync.** Double-click the small **Reset** button in the middle of the CPB (indicated by the red arrow in the image). The ten NeoPixel LEDs will all turn red, and then will all turn green. If they turn all red and stay red, check the USB cable, try another USB port, etc. The little red LED next to the USB connector will pulse red - this is ok! If double-clicking doesn't work the first time, try again. Sometimes it can take a few tries to get the rhythm right! (If double-clicking doesn't do it, try a single-click!) ![adafruit_products_CPB_Front_Reset_Button_Arrow.jpg](https://cdn-learn.adafruit.com/assets/assets/000/080/532/medium640/adafruit_products_CPB_Front_Reset_Button_Arrow.jpg?1567715535) You will see a new disk drive appear called **CPLAYBTBOOT**.       Drag the **adafruit\_circuitpython\_etc.uf2** file to **CPLAYBTBOOT.** ![adafruit_products_CPB_CPLAYBTBOOT.png](https://cdn-learn.adafruit.com/assets/assets/000/080/533/medium640/adafruit_products_CPB_CPLAYBTBOOT.png?1567715858) ![adafruit_products_CBP_drag_UF2.png](https://cdn-learn.adafruit.com/assets/assets/000/080/534/medium640/adafruit_products_CBP_drag_UF2.png?1567715871) The LEDs will turn red. Then, the **CPLAYBTBOOT** drive will disappear and a new disk drive called **CIRCUITPY** will appear. That's it, you're done! :) ![adafruit_products_CBP_CIRCUITPY.png](https://cdn-learn.adafruit.com/assets/assets/000/080/535/medium640/adafruit_products_CBP_CIRCUITPY.png?1567716034) # Bluetooth Turtle Bot with CircuitPython and Crickit ## Code with CircuitPython Plug your Circuit Playground Bluefruit board into your computer with a known good USB A to USB micro B cable (good = had both data & power wires in it).  Yellow: Do not plug your USB cable into the Crickit - that port is rarely used. Use the one on the Circuit Playground Bluetooth board only. ![](https://cdn-learn.adafruit.com/assets/assets/000/084/075/medium800/circuitpython_crickitusb.jpg?1573591357) Your computer should recognize the Circuit Playground Bluefruit as a new flash drive named **CIRCUITPY**. If you see a new drive named **CPLAYBTBOOT** then press reset. If still no **CIRCUITPY** drive, go back to the CircuitPython on the Circuit Playground Bluefruit page to install CircuitPython again. Using your computer's operating system, make a directory named **lib** in the main (root) directory of the **CIRCUITPY** drive if it is not already present. This will hold some code libraries for the project. ## Libraries Now we'll install the libraries that we need to run the rover code on the Circuit Playground Express with Crickit. [Click this link](https://circuitpython.org/libraries) to got to the **circuitpython.org** Libraries page. Download the latest version of the Bundle library **.zip** file that matches the version of CircuitPython you're using on the board. Uncompress the **.zip** file and then copy the following directories and **.mpy** files to the **lib** directory of the **CIRCUITPY** drive: - **adafruit\_ble** - **adafruit\_bluefruit\_connect** - **adafruit\_bus\_device** - **adafruit\_motor** - **adafruit\_seesaw** - **adafruit\_crickit.mpy** - **neopixel.mpy** ![circuitpython_roverlibraries.jpg](https://cdn-learn.adafruit.com/assets/assets/000/084/083/medium640/circuitpython_roverlibraries.jpg?1573592981) Your **lib** directory on the **CIRCUITPY** drive should be similar to the picture above. ## The Mu Editor Adafruit recommends using the free program Mu to edit your CircuitPython programs and save them on your Circuit Playground Bluefruit. You can use any text editor, but Mu has some handy features. [See this page on the Circuit Playground Bluefruit guide](https://learn.adafruit.com/adafruit-circuit-playground-bluefruit/installing-mu-editor) on the steps used to install Mu. ## Turtle Rover Code The event we've all been waiting for! The actual CircuitPython code for our rover! Copy this code and then paste it into a new document in Mu, then save it to your **CIRCUITPY** drive as **code.py** https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/Crickits/Turtle_BLE_CPB_Crickit_Rover/code.py ## How the Code Works The first part of the program sets up a `UARTServer`, which is a BLE service that wirelessly sends streams of characters between a BLE device and a client computer (which could be a phone or tablet). The program then starts advertising its UART service to anyone listening. The client computer receives the advertisement, and tells the user it's available. The user can then choose to connect as a client of the service. One a connection is established, the program code waits for incoming command packets from the client, either a `ColorPacket` or a `ButtonPacket`. When one arrives, the program waits to see which button has been pressed or which color value is sent and then either runs the motors or changes the colors on the NeoPixels. ## Motor Movement We set up a couple of variables -- `FWD` and `REV` -- that tell the program which base values to send for forward and reverse. Depending on how you wired the motors, and which way you want to consider "forward" on the cart, you can adjust these values anywhere from `-1.0` to `1.0`. When you test the rover, if it goes backwards when you press the up button, you can switch the `FWD` variable from `0.25` to `-0.25` and flip the `REV` value from `-0.25` to `0.25`. The alternative is to swap which wire -- red or black -- is going into each port of the Motor 1 and Motor 2 terminals on the Crickit. If you find the rover spinning in circle when you press up or down on the remote app, then one of the motors is wired "backwards". Simply swap the two wires of that motor into each others' ports on the Crickit! ![](https://cdn-learn.adafruit.com/assets/assets/000/084/005/medium800/micropython___circuitpython_Untitled.png?1573501474 Swapping wires to get a motor to run the other way. Swap the two in the red circle for one or the orange circle for the other but don't swap pins between the circles.) ## Control the Rover with the Bluefruit LE Connect App ### Download the App To control the motors and NeoPixels from a client device (phone or tablet), you use the free Adafruit [Bluefruit LE Connect App](https://learn.adafruit.com/bluefruit-le-connect-for-ios). Install it from the [Apple App Store](https://itunes.apple.com/us/app/adafruit-bluefruit-le-connect/id830125974) or [Google Play App Store](https://play.google.com/store/apps/details?id=com.adafruit.bluefruit.le.connect). ## Connect to CPB   With the Crickit plugged into DC power and turned on with its on-board power switch, the CPB will also get power and automatically start running your code. Then start up the Bluefruit LE Connect app, and make sure it's in Central Mode (left button on the bottom).  When you start the app, you should see a device named **CIRCU** or **CIRCUITPY**. If there's a long list of devices, you can shorten it by turning on the " **Must have UART Service**" switch. ![micropython___circuitpython_IMG_6856.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/968/medium640/micropython___circuitpython_IMG_6856.jpg?1573254660) To connect to the bot, touch the **Connect** button. ## Drive and Light   Once connected, you can use the Controllers -\> Control Pad to drive with the arrow buttons, stop with the 1 button, and change to some preset colors on 2, 3, & 4 The incoming packet for any arrow button press event will tell the motors to throttle to the preset speed variable, such as `motor_1.throttle = FWD`. When you release the button, the button packet will tell the motor to stop. So, you can press and hold to go, and then release to stop, it's easy and fun! ![micropython___circuitpython_IMG_6858.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/969/medium640/micropython___circuitpython_IMG_6858.jpg?1573254713) ![micropython___circuitpython_IMG_6860.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/970/medium640/micropython___circuitpython_IMG_6860.jpg?1573254730) ![micropython___circuitpython_IMG_6861.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/971/medium640/micropython___circuitpython_IMG_6861.jpg?1573254741) ![micropython___circuitpython_IMG_6863.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/972/medium640/micropython___circuitpython_IMG_6863.jpg?1573254760) ![micropython___circuitpython_IMG_6867.jpg](https://cdn-learn.adafruit.com/assets/assets/000/083/973/medium640/micropython___circuitpython_IMG_6867.jpg?1573254798) Here's our turtle up on blocks to demonstrate the remote control: https://youtu.be/TBqlnHzJoDY And here it is with wheels (flippers!) down: https://youtu.be/Af231qJsXtM ## Featured Products ### Circuit Playground Bluefruit - Bluetooth® Low Energy [Circuit Playground Bluefruit - Bluetooth® Low Energy](https://www.adafruit.com/product/4333) **Circuit Playground Bluefruit** is our third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. We've taken the popular Circuit Playground Express and made it even better! Now the main chip is an nRF52840... Out of Stock [Buy Now](https://www.adafruit.com/product/4333) [Related Guides to the Product](https://learn.adafruit.com/products/4333/guides) ### Adafruit CRICKIT for Circuit Playground Express [Adafruit CRICKIT for Circuit Playground Express](https://www.adafruit.com/product/3093) Sometimes we wonder if robotics engineers ever watch movies. If they did, they'd know that making robots into servants always ends up in a robot rebellion. Why even go down that path? Here at Adafruit, we believe in making robots our  **friends!** So if you find... In Stock [Buy Now](https://www.adafruit.com/product/3093) [Related Guides to the Product](https://learn.adafruit.com/products/3093/guides) ### DC Gearbox Motor - "TT Motor" - 200RPM - 3 to 6VDC [DC Gearbox Motor - "TT Motor" - 200RPM - 3 to 6VDC](https://www.adafruit.com/product/3777) Perhaps you've been assembling a new robot friend, adding a computer for a brain and other fun personality touches. Now the time has come to let it leave the nest and fly on its own wings– err, _wheels!_  These durable (but affordable!) plastic gearbox motors... Out of Stock [Buy Now](https://www.adafruit.com/product/3777) [Related Guides to the Product](https://learn.adafruit.com/products/3777/guides) ### Orange and Clear TT Motor Wheel for TT DC Gearbox Motor [Orange and Clear TT Motor Wheel for TT DC Gearbox Motor](https://www.adafruit.com/product/3766) Usually when one needs an orange wheel it's a garnish for a cocktail, like a tasty Sidecar. And speaking of cars, this wheel ** ** is for driving, not drinking! Need a great drive solution for your little robotic friends? This  **Orange...** In Stock [Buy Now](https://www.adafruit.com/product/3766) [Related Guides to the Product](https://learn.adafruit.com/products/3766/guides) ### USB Battery Pack - 2200 mAh Capacity - 5V 1A Output [USB Battery Pack - 2200 mAh Capacity - 5V 1A Output](https://www.adafruit.com/product/1959) A smaller-sized rechargeable battery pack for your [Raspberry Pi](http://www.adafruit.com/raspberrypi) or [Raspberry Pi B+](https://www.adafruit.com/product/1914) (or [Arduino](http://www.adafruit.com/arduino), or  No Longer Stocked [Buy Now](https://www.adafruit.com/product/1959) [Related Guides to the Product](https://learn.adafruit.com/products/1959/guides) ### USB to 2.1mm Male Barrel Jack Cable [USB to 2.1mm Male Barrel Jack Cable](https://www.adafruit.com/product/2697) There's two standard ways to power electronics - USB or 5.5mm/2.1mm DC barrel jack. This or that! With this **USB to 2.1mm Male Barrel Jack Cable** , you can now power 5V DC powered electronics that have a DC jack from a USB jack with a handy 1 meter long... Out of Stock [Buy Now](https://www.adafruit.com/product/2697) [Related Guides to the Product](https://learn.adafruit.com/products/2697/guides) ### Adafruit Circuit Playground Bluefruit Express Starter Kit [Adafruit Circuit Playground Bluefruit Express Starter Kit](https://www.adafruit.com/product/4504) If you missed out on ADABOX 014, its not too late for you to pick up the parts necessary to build many of the projects! This kit pack doesn't come with tissue paper or the nifty extras, but it does have all the electronic goodies you need This project pack features... Out of Stock [Buy Now](https://www.adafruit.com/product/4504) [Related Guides to the Product](https://learn.adafruit.com/products/4504/guides) ## Related Guides - [Adafruit Circuit Playground Bluefruit](https://learn.adafruit.com/adafruit-circuit-playground-bluefruit.md) - [Crickit Collapsible House with MakeCode](https://learn.adafruit.com/collapsible-house.md) - [Wireless Image Transfer with Circuit Playground Bluefruit and TFT Gizmo](https://learn.adafruit.com/wireless-image-transfer-with-circuit-playground-bluetooth-and-tft-gizmo.md) - [How to use the Puppet Module in the Bluefruit Playground App](https://learn.adafruit.com/how-to-use-the-puppet-module-in-the-bluefruit-playground-app.md) - [Circuit Playground + CircuitPython Quickstart Guide](https://learn.adafruit.com/circuit-playground-express-circuitpython-5-minute-guide.md) - [Circuit Playground-O-Phonor](https://learn.adafruit.com/circuit-playground-o-phonor.md) - [Using the CircuitPython Extension for Visual Studio Code](https://learn.adafruit.com/using-the-circuitpython-extension-for-visual-studio-code.md) - [Circuit Playground TFT Gizmo Snow Globe](https://learn.adafruit.com/circuit-playground-tft-gizmo-snow-globe.md) - [Affordable HAL 9000 Replica](https://learn.adafruit.com/hal-9000-replica.md) - [Color Remote with Circuit Playground Bluefruit](https://learn.adafruit.com/color-remote-with-circuit-playground-bluefruit.md) - [LED Reactive Light-Up Hockey Puck in MakeCode](https://learn.adafruit.com/led-hockey-puck.md) - [ Memory-saving tips for CircuitPython](https://learn.adafruit.com/memory-saving-tips-for-circuitpython.md) - [PyLeap App](https://learn.adafruit.com/pyleap-app.md) - [Crickit Lab Shaker](https://learn.adafruit.com/crickit-lab-shaker.md) - [Stumble-Bot](https://learn.adafruit.com/stumble-bot-with-circuit-playground-and-crickit.md) - [Crickit Powered Mini Chair Swing Ride!](https://learn.adafruit.com/mini-chair-swing-ride.md)