Petoi bittle bionic open source robot dog

Strong protection : High-strength injection molded plastic provides the best protection against collisions and dust (not waterproof!). In the stress test, the assembled robot can withstand the footsteps of adults without damaging any components.

Easy to operate : Bittle has been pre-programmed to be usable out of the box, with a 3D interlocking structure for the body and legs, reducing the use of screws.

Rich extensions : Raspberry Pi or other artificial intelligence chips can be installed to make Bittle have stronger artificial intelligence capabilities; 4 grove interfaces can be connected with external sensors, such as ultrasonic sensors and infrared sensors (it can be held in the mouth, very cute)

Customized Arduino boar d: Bittle is driven by NyBoard V1, a customized Arduino board with rich peripherals (Atmega328P chip). It fully utilizes the chip of a regular Arduino Uno to coordinate sophisticated motions. The board can drive at least 12 PWM servos, and an IMU (Inertial Measurement Unit) is used for balancing.

Compatible with multiple programming methods : Bittle can be programmed at different levels in various programming environmentsincluding Arduino IDE for C language and Codecraft for graphical programming.Developers and STEM educators can also review and modify Bittle C code, which is completely open source.

Unique bionic system :The unique bionic system can perform dynamic movement and has excellent coordination.The bionic structure of the legs gives it more freedom in unstructured terrain.This dynamic mobility can only be seen in some of the best laboratories or some luxury robots of big companies, such as Boston Dynamics Spot or Sony Aibo.

Description

Bionic Open Source Robot Dog

Bittle is a small but agile and powerful robot dog. It is an ideal tool for learning, teaching and researching quadruped robots. With customized Arduino board coordinating all instinctive and sophisticated movements, you can clip on various sensors to bring in perception. You could also inject artificial intelligence capabilities by mounting a Raspberry Pi or other AI chips.

Innovative 3D interlocking parts

Bittle skeleton consist of 3D interlocking parts,which reduces the use of screws and makes it simple and beautiful.

Each component has gone through dozens of iterations of 3D printing. And we use high-strength injection molded parts to provide the best protection to prevent collisions and dust from entering (Bittle is not waterproof however). In the pressure test, the assembled robot can withstand adult stepping on it. You can learn more through the following gif.

What is Grove?

No jumpers or soldering required, Grove makes it easier to connect, experiment, and simplify the prototyping process significantly. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Each one comes with clear documentation and demo code to help you get started quickly. Not only are these open hardware, but we also have open-source software.

Compatible with variety ofprogramming languages

Bittle supports graphical programming, C and Python. Whether you are a beginner or a senior engineer, you can give Bittle “life” in your own way. You can learn about the actions that Bittle can complete after programming it through the following gif.

*To use Python, external components are needed, not included in the basic kit.

Exclusive graphical programming course (16 lessons)

Our professional team of STEM educators has developed a graphical programming course for Bittle.It makes getting started programming for Bittle easy and accessible for everyone.The course assumes basicfamiliarity with graphical programming. If you are a complete beginner, you can start with Codecraft Introduction to Graphical programming course first!

Active online community and professional technical support

As a joint project between Petoi and TinkerGen, Bittle has a support of active online community, including forums, professionally written documentation and experts from the team ready to help users with issues if they arise. You can find up to date information about Bittle on https://www.tinkergen.com/ and online tutorials, projects and lesson ideas at TinkerGen Education Platform, Make2Learn.

Rich extensions

Bittle’s main board NyBoard V1 is a custom Arduino board with 4Pin connectors on the board. You can configure various Grove modules for Bittle to bring a totally new perception to Bittle.

Compatible with Raspberry Pi/ESP32

Bittle’s main board NyBoard V1 is a custom Arduino board. The onboard 2×5 socket is used to connect the Raspberry Pi or other AI chips to bring intelligence into Bittle.

Hardware overview

All robots, and our Bionic robot dog in particular, are complex electromechanical systems, comprised of multiple different components working all together. Just by looking at it, it’s hard to say how it can perform advanced movement functions. In this lesson we’re going to have an in-depth look at the modules that Bittle is made of and how they’re all interconnected.

Main components

Here are the main components you can see when you look at Bittle:
– servos in every joint, that needs to be moved, namely shoulder and hip joints and head pan joint
– battery installed under the belly
– mainboard with control chip and some modules under black cover

Servos

Servos are motors, that can be precisely controlled to be turned to a certain angle. A servo is very similar to electric motor – in fact it IS an electric motor with a controller chip, a potentiometer and gears for reducing speed all packed inside of plastic casing.

Potentiometer can be used to measure the angle of rotation of the shaft – and using control circuit we can move servo shaft to precise degree, unlike with simple DC motor, where we can only control the direction and speed. All that makes servos uniquely useful in robots applications.

Battery

The battery used in Bittle is a lithium-ion battery. A lithium-ion battery is a lightweight, high-power battery used in computers and mobile phones. That makes it useful for devices that should be lightweight. Lithium-ion batteries work by the movement of lithium ions through a membrane (thin sheet that allows some substances to pass through).

Mainboard

After you lift the back cover, you will be able to see the top of the mainboard.The main control chip, ATMega328p is located under the mainboard, so you won’t be able to see it.

In the center of the board you can see another chip, PCA9685, which is used for controlling the servos. You can think of main control chip as the brain and servo driver chip as a spinal cord in mammals, responsible for motor coordination.

Grove connectors

Additionally, on top of the board you can see four Grove connectors: two digital, one analog, and one I2C bus connector. 

Neopixel RGB LED

Finally, you also can see seven LEDs on top of the board.These are Neopixel RGB LEDs, each one of them can be addressed individually and its color can be changed. They are very useful for debugging and just look shiny!

Specifications

Overview

  • Shock resistant ABS injection-molded plastic
  • Spring-loaded upper legs
  • 20cm x 11cm x 15cm
  • Product weight: 290g
  • Maximum load weight: ~300 g

Servo

Model P1SVoltage 8.4Working angle270Stall current1500mAStall torque3.15 kg/cm

Battery

2S Li-ion battery moduleMicro USB-AchargingVoltage7.4VCurrent5ACapacity1000mAh/7.4Wh

Mainboard

  • ATmega328P
  • Chip frequency 16 MHz
  • Memory 2KB SRAM, 32KB flash, 1KB Internal EEPROM + 8KB I2C EEPROM
  • 4x Grove interface
  • 1x UART, 1x I2C, 1x SPI

Supports plugging in the Raspberry Pi (not provided in the kit), powering the Raspberry Pi, and communicating with the Raspberry Pi through the serial port and I2C. Support plugging in the Bluetooth module (not provided in the kit), and using the mobile APP remote control.

NyBoardV1_1Supports plugging in the Raspberry Pi (not provided in the kit), powering the Raspberry Pi, and communicating with the Raspberry Pi through the serial port and I2C. Support plugging in the Bluetooth module (not provided in the kit), and using the mobile APP remote control.

What’s in the Box

Bittle Kit Includes everything you need to make the robot dog up and running:

In the Pre-assembled kit, we have helped you install Bittle in advance, and burned the default program for Bittle. You just need to open the package, and you can use the remote control to control Bittle immediately

COVID: We are suspending product returns due to the current COVID-19 pandemic unless there is a manufacturing defect. Please study the product and ask us questions before you buy. Thank you. ORDER CANCELLATION: After you place an order, you have 5 hours to request an order cancellation. After 5 hours, your item(s) have either already been shipped, prepared to ship, or are currently being custom-made. It means we will not process your cancellation request after this period has passed. By placing your order, you signify that you agree to be bound by our PAYPAL and STRIPE SERVICE FEES: Please note both PayPal and Stripe do not offer a refund for the service fees they charge when you purchase a product. Therefore, after placing an order, if you change your mind and ask for a refund, we will deduct the service fee for PayPal or Stripe, whichever one you used to purchase. If you have any questions about this, please contact PayPal or Stripe. EXCHANGE POLICY: Oz Robotics wants you to be happy with your new purchase. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. Once you used the product, our supplier(s) and we have the right not to issue a refund. Still, we will offer an exchange for the wrongly purchased items or products with serious and irreversible defects or technical problem(s). The buyer will pay the shipping fee for wrongly purchased products or any other similar issues. If the product you purchased is defective, please email us at [email protected] with some photos or a video of the defective parts to evaluate before you send it. Click REFUND POLICY: Oz Robotics accepts refunds on a minimal basis unless there is a manufacturing defect. For any electronic items, returns are only accepted on devices with serious and irreversible problems; meanwhile, the customer must apply for the returns within seven days from the delivery date. Before a refund acceptance, please include images or a video and any other material proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. For more info on Refund and Replacement Policy please visit

We are suspending product returns due to the current COVID-19 pandemic unless there is a manufacturing defect. Please study the product and ask us questions before you buy. Thank you.After you place an order, you have 5 hours to request an order cancellation. After 5 hours, your item(s) have either already been shipped, prepared to ship, or are currently being custom-made. It means we will not process your cancellation request after this period has passed. By placing your order, you signify that you agree to be bound by our Order Cancellation Policy Please note both PayPal and Stripe do not offer a refund for the service fees they charge when you purchase a product. Therefore, after placing an order, if you change your mind and ask for a refund, we will deduct the service fee for PayPal or Stripe, whichever one you used to purchase. If you have any questions about this, please contact PayPal or Stripe.Oz Robotics wants you to be happy with your new purchase. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. Once you used the product, our supplier(s) and we have the right not to issue a refund. Still, we will offer an exchange for the wrongly purchased items or products with serious and irreversible defects or technical problem(s). The buyer will pay the shipping fee for wrongly purchased products or any other similar issues. If the product you purchased is defective, please email us at [email protected] with some photos or a video of the defective parts to evaluate before you send it. Click HERE for more on Refund and Replacement PolicyOz Robotics accepts refunds on a minimal basis unless there is a manufacturing defect. For any electronic items, returns are only accepted on devices with serious and irreversible problems; meanwhile, the customer must apply for the returns within seven days from the delivery date. Before a refund acceptance, please include images or a video and any other material proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. For more info on Refund and Replacement Policy please visit Refund and Replacement Policy . Other than our supplier’s default policy, once a return is agreed upon, you can ship your defective item to the provided return address that you should receive from us first. Please ship the order in original packaging with all the accessories and additional parts. If the Required Parts are not sent back, they will be billed for or expected to be shipped at a later stage. And only once all items have arrived will our staff check the returned product for testing. Include in your package a signed letter stating the reason for your return and the original receipt as well as any mentioned proof of defect, images, or a video, etc. It will help us to speed up the process on your behalf. The purchaser (customer/buyer) is responsible for all shipping costs when returning an item. However, upon receiving the returned order, we will assess the product. If it is determined that there is, in fact, a manufacturing defect, then we will refund the shipping costs as well as repair or replace or refund the full amount to the purchaser if the product is not fixable. If you wish to return an unused product, please do so within seven days from the ship date for a refund on the purchase price, minus shipping, handling. Refunds will be credited to the original credit card used for payment in 24-48 HOURS after receiving the product back. We will charge 50% restocking fee. Once your return is received and inspected, and if agreed for a refund, refunds will be credited to the original credit card used for payment in 24-48 hours. Please note that we will charge a 50% restocking fee once you return a product without any defect. Once your refund is processed, PayPal will return the money to the card used. It may take at least five business days (depending on the bank and credit company) before your refund is posted in your bank account and statements. Contact Us if you still have not received your refund after 5 business days. Do not return your product to our New York office. For any exchange or refunds, please email us first at [email protected] for us to provide you with the steps that need to be followed. Any product you return must be in the same condition you received and returned in the original packaging without being used. Please keep the original receipt. More on Refund and Replacement Policy

Written by Jane