Compass L1 Robot Platform


  • crawler wheel
  • overall aluminum casting & molding process
  • coreless DC servo motor
  • servo driver
  • demo application source code based on STM32F407

Compass L1 Robot Platform

The Compass series is a small fundamental robot platform. It aims to provide users with a complete mobile robot system with high reliability and multiple interfaces. The chassis of this platform adopts overall aluminum casting & molding process.

The development kit provides customers with a complete equipment communication protocol. Also, it provides examples and demo application source code based on STM32F407, which allows users to know how to operate Compass Robot quickly.


  • crawler wheel
  • overall aluminum casting & molding process
  • coreless DC servo motor
  • servo driver
  • demo application source code based on STM32F407


body structure: aluminum alloy molding whole shape dimension: 408*354*108mm
driving wheel: crawler wheel the diameter of the driving wheel: 108mm
drive mode: two or four-wheel combining drive suspend kind no suspension
minimum space between robot to ground: 23mm gross weight: 16kg
rated load capacity: 20kg motor type: coreless DC servo motor
rated power of the motor: 30W motor encoder: 500 line/rev, A、 B phase output
quantity of motors: 2/4 motor driver: servo driver, supporting both CAN bus and RS232 interface
maximum translational speed: 0.8m/s maximum rotation speed: 160°/s
minimum turning radius: 0m adaptive ground: indoor, bituminous ground, concrete ground with little depression
typical duration time: >10h(load capacity 10KG,moving speed  1m/s,moving rate70%) standby time: >30h
support electricity output: 5V@5A / 12V@5A /battery voltage(35.2~46.2V)@>10A The default specification of The power of the insurance tube: 5×20/10A
battery capacity: 24V/7.8Ah lithium-ion battery battery fast change: support
battery charger: charger input voltage: AC100V~240V Charging current: 5A Interface: direct plug-in
DEMO development board: RHF407development board(CAN×2,RS232×2,TTL×1,RS485×1,SPI×1,I2C×1,USB×1,ADC×8,DAC×2,PWM×8,LED×2,Button×2,IndependenI/O×24, Reusable I/O×29,TF interface×1,RTC battery back seat,ReusableTFT LCD interface×1)
accessories: battery charger、ULB-1ultrasonic sensor×5



robot, robot + ULB-1 ultrasonic range-testing sensors


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Product Manuals

If applicable, the Product Documentation, Reference Materials, CAD design(s),.STEP file(s) and/or other drawing files, Manuals, and Tutorials will be available for download upon purchase. The order confirmation email will include a downloadable link to the product file(s), which can also be downloaded from the My Account section if needed.

Chengdu Hangfa Robotics Co. Ltd was found in 2002, HANGFA is mainly engaged in R& D, manufacture and market of hydraulic equipment and custom-designed electrical and mechanical equipment. Hangfa company passed the ISO9001 international quality management system certification in 2007.And hangfa company got the name of Sichuan provincial high-tech enterprises in 2010. The company born out of Chengdu Aero Engines Corporation. The company totally Inherits rigorous work style of military enterprises, firmly insists on self-development, and definitely believes technology is the way to survive. Now we have more than forty items of various types of patents, filling the more than entry blank. The company is located in Chengdu Modern Industrial Park, with an area of 50 acres and more than 200 employees.

Hangfa build the omni-wheel division in 2009,which commits to provide the market with high reliability industrial omni wheel products and services.The omni-wheel can bear the capacity 2KG ~ 3100KG.The division has the harsh treatment of product quality and constantly explored and tried new technology,thus the omni-wheel have been widely recognized.Hangfa company is currently the most professional manufacturer of industrial-grade omni-wheel in the world.

Hangfa build the robot division in 2011.T he robot division gradually brings together a number of robotics talent,which commits to provide the market with high reliability industrial robotic products and services. The products concludes the multi- , robotic arm, positioning systems, robotics accessories.We will quickly provide customers professional solutions and customization.

Shipping Policy

  • Shipping cost quoted in Oz Robot is for reference.
  • Customer can get new shipping cost by email Oz Robot and Hangfa will quote. Final shipping cost will follow final quotation from Hangfa.
  • If the customer do not inform Oz Robot to let Hangfa quote shipping cost. The shipping cost will be the same as the cost showed in Oz Robot.
  • "Any" showed in country column of shipping list means the country that Hangfa does not quote shipping cost individually in shipping list in production profile, is contained in 50 countried that Oz robot advises and does not contain "some countries"
  • Below country is "some countries":
    • Brail
    • Saudi Arabia
    • United Arab Emirates

Return Policy

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. Please read the product exchange policy defined by each supplier for their own listed product(s), which can be found under the Shipping tab on each product page. Once you have used the product, our supplier(s) and we have the right not to issue a refund. Still, they will offer an exchange for the wrongly purchased items or products with serious and irreversible defects or technical problems (s). If wrongly purchased products or any other similar issues, the buyer will pay the shipping fee. If the product you purchased is defective, please email us at with some photos or a video of the defective parts to evaluate before you send it. Click HERE for more on Refund and Replacement Policy

REFUNDS/RETURNS: Oz Robotics accepts returns 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 7 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.

Other than our supplier’s default policy, once a return is agreed upon, then 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 as a full system can we 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. This 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 7 days from the ship date for a refund on the purchase price, minus shipping, handling. Refunds will be credited to the original credit card use 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 if you want to return a product without any defect.

Once your refund is processed, then PayPal will return the money to the card that was used. It may take at least 5 business days (depending on the bank and credit company) before your refund is officially 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 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.

Shipping costs

Country State Postcode Cost
Any Any Any $245.00

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