Standing screen display size | 3 Inches |
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Processor | none |
Card Description | Dedicated |
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FREENOVE Robot Dog Kit for Raspberry Pi 4 B 3 B+ B A+, Walking, Self Balancing, Ball Tracing, Face Recognition, Ultrasonic Ranging, Camera Servo (Raspberry Pi NOT Included)
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
- This robot dog has multiple functions. (Assembly required. Raspberry Pi and Battery are NOT included.)
- Provides detailed assembly tutorial and complete code (Python) -> The download link can be found on the product box. (No paper tutorial.)
- Compatible models -> Raspberry Pi 4B / 3B+ / 3B / 3A+. (2B / B+ / A+ / Zero 1.3 / Zero W is also compatible but needs extra parts.) (Raspberry Pi is NOT included in this kit.)
- Control methods -> Controlled wirelessly by your Android phone or tablet, iPhone and computer (run Windows, macOS or Raspberry Pi OS).
- Needs battery -> Refer to "About_Battery.pdf" in downloaded file to buy.
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From the brand
Freenove Products
Starter Kits, Robot Kits, Boards and Accessories for mainstream controllers
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For Raspberry Pi
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For Raspberry Pi Pico
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Compatible with Arduino IDE
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For ESP32
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For ESP32-S3
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For ESP8266
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For BBC micro:bit
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What's in the box
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Product information
Technical Details
Brand | FREENOVE |
---|---|
Series | Robot |
Item model number | FNK0050 |
Operating System | Raspberry Pi OS |
Item Weight | 2.14 pounds |
Product Dimensions | 3.94 x 0.39 x 5.91 inches |
Item Dimensions LxWxH | 3.94 x 0.39 x 5.91 inches |
Processor Brand | Freenove |
Computer Memory Type | DDR DRAM |
Hard Drive Interface | Unknown |
Voltage | 5 Volts |
Manufacturer | Freenove |
ASIN | B08C254F73 |
Country of Origin | China |
Date First Available | June 29, 2020 |
Additional Information
Customer Reviews |
3.9 out of 5 stars |
---|---|
Best Sellers Rank | #1,595 in Single Board Computers (Computers & Accessories) |
Warranty & Support
Feedback
Product Description
Important Notes:
This robot needs to be assembled and does NOT include Raspberry Pi and battery.
(Refer to "About_Battery.pdf" in downloaded file to buy battery.)
Overview:
This is a programmable robot dog kit, which has multiple functions.
Whether you want to experience the joy of robots or learn to program, this is a good choice.
We provide free technical support to help you with any questions and problems.
Compatible Models:
* Recommended:
Raspberry Pi 4B / 3B+ / 3B / 3A+
* Also compatible but needs extra parts (refer to tutorial for details):
Raspberry Pi 2B / B+ / A+ / Zero 1.3 / Zero W
(Note: Raspberry Pi is NOT included in this kit.)
Tutorial and Code:
Comes with detailed tutorial and complete code (Python). (Download needed, no paper tutorial.)
The download link can be found on the product box.
Remote Control:
You can use the following devices to control this robot:
* Computer:
Laptop or desktop. (Run Windows, macOS or Raspberry Pi OS.)
(Refer to tutorial for details.)
* Android device:
Android phone or tablet. (Run Android 4.4 or later, installed Freenove App.)
(Search Freenove on Google Play.)
* iPhone:
(Run iOS 10 or later, installed Freenove App.)
(Search Freenove on App Store.)
Package Includes:
1 x Robot Shield for Raspberry Pi
1 x Connection Board
1 x Ultrasonic Module
1 x Accelerometer Module
1 x LED Module
1 x Camera
1 set Machinery Parts (9 kinds)
13 x Servo Package
1 x Servo Package
1 set Acrylic Parts
1 x Jumper Wire F/F (4Pin)
1 x 10cm 3Pin LED Cable
1 x 25cm 15Pin Camera Cable
1 x Cross Screwdriver (3mm)
1 x Cross Screwdriver (2mm)
1 x Cable Tidy (80cm)
1 x Red Ball
1 x Calibration Graph
Needed but Not Included:
2 x Battery (Refer to "About_Battery.pdf" in downloaded file to buy.)
1 x Charger for battery
1 x Raspberry Pi board and its necessary accessories
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the design and support of the toy figure. They say it's a well thought out kit and looks cool when powered up. They also appreciate the CAD drawings so they can reprint broken bodies. However, some customers have reported issues with the servos, saying they didn't properly react to the control signal. They are disappointed with the shield and have different opinions on quality and instructions.
AI-generated from the text of customer reviews
Customers find the Robot Dog Kit to be a fun and educational experience. They mention that the kit has lots of parts that are fun to mess with. Customers also find it to be an enjoyable challenge and a great exposure to engineering and programming.
"...Purchased just to play around.Nice adult toy to play with, challenging. Has issues, see below...." Read more
"Building and running this Robot Dog Kit was a very fun and educational experience...." Read more
"So two things, first this robot is a lot of fun. It has so many capabilities out of box...." Read more
"...Seems great for a learning experience (intro class? parent/child project?) but only >IF< they fix the camera issue...." Read more
Customers are impressed with the clever design of the toy figure. They say it looks really cool when powered up and standing. Customers also appreciate the well thought out kit and the CAD drawings provided so you can reprint a broken body.
"...instructions are very easy to follow, and best of all, they provide the CAD drawings so you can reprint broken body parts...." Read more
"...It was frustrating at times, but does look really cool when powered up and standing, and it is oddly satisfying to be using VNC or SSH on a "robot"." Read more
"Packaging was done well, impressed with clever design...." Read more
"...This kit may be a little daunting for rank beginners, but it is so well designed, built and documented that I would unconditionally recommend it for..." Read more
Customers like the support. They say the company provides excellent support to questions and replaces failed servos promptly. They also appreciate the quick customer support.
"...] Enjoyable build and good customer support. No problems with parts or the instructions...." Read more
"...Great kit. Excellent support from Customer Support." Read more
"...I have removed 2 stars because:- Support is more confusing than helping...." Read more
"Excellent value. Works as advertised. Excellent company support to questions. Replaced failed servos promptly...." Read more
Customers find the toy figure great value for the money. They also say it's a great way to learn python and electronics.
"...seemed to be of a quality higher than I expected since it's price was reasonable. I downloaded the instructions and programming...." Read more
"...This kit took me about 8 hours to build, and I think it was worth it for the price...." Read more
"...sophisticated robots based on Arduino and Raspberry Pi at a very competitive price...." Read more
"...it is great value for the money and great way to learn python and electronics as well." Read more
Customers are mixed about the instructions. Some mention that the instructions are clear and quite thorough, making the setup easy. However, others say that the directions could be much better, have lots of typos, and the documentation is unorganized, unclear, and not intuitive. They also mention that it takes a lot of patience to assemble the various parts.
"...The instructions are great. I learned about installing the operating system on the pi which was cool and will come in handy for future projects...." Read more
"...The tutorial is clear, but when things don’t work, figuring them out with no background would be tough ...." Read more
"...Instructions could be much better. A lot of water in instructions, some statements are incorrect or misleading.Tips:-..." Read more
"...No problems with parts or the instructions...." Read more
Customers are mixed about the quality of the toy figure. Some mention that it's of excellent quality, with sturdy laser cut body parts. However, others say that it has issues and is faulty.
"...contacting customer support, and removing the spaces, the code and product worked great. I didn’t like the head, so I made a new one on my 3D printer." Read more
"...Nice adult toy to play with, challenging. Has issues, see below. Be ready to DIY (do it yourself) and FIY (fix it yourself) :-)..." Read more
"...The kit we received was of excellent quality, with the gears of the stepping motors made of metal and not plastic...." Read more
"...Waste of time and money and a sad kid." Read more
Customers are dissatisfied with the shield. They mention that it was faulty, the screws broke easily, and the camera lens was broken off the sensor. Some parts could be faulty and the instructions have lots of typos.
"...A couple of the servos were dead, or may have been taken out when the controller board got smoked. So why four stars with all of that?..." Read more
"...the testing phase the robot dog fell off my desk and it broke a couple of parts. There was an extra unit of one of the parts...." Read more
"...the position it was supposed to be in and it caused a stress fracture on the back support which eventually broke...." Read more
"...Unfortunately the camera lens was broken off the sensor on arrival (not their fault and Freenove immediately sent a replacement)..." Read more
Customers are dissatisfied with the servos in the toy figure. They mention that some servotros did not properly react on control signal, are too weak, and are defective. Some customers also report that the Servo.py file is not compatible with their version of Python, and the SERVO.png file was not connected correctly.
"...If servo test doesn't work, I would recommend to edit "Servo.py" and replace "4096 * ((angle * 10) + 850) / 20000" with "120 + (510 - 120) *..." Read more
"...Sadly, this robot, as it is designed currently, is not capable of these tasks...." Read more
"...is that the servos are too weak...." Read more
"...worked until i got to the last servo test and one of the servos was not connected correctly so when it was connected it snapped into place which was..." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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Reviewed in the United States on February 17, 2021
Reviewed in the United States on May 16, 2021
Nice adult toy to play with, challenging. Has issues, see below. Be ready to DIY (do it yourself) and FIY (fix it yourself) :-)
Pros:
- Affordable
- Cool puzzle to build :-)
- Definitely educational
- A lot of components out of the box: camera, ultrasonic, gyro, leds, 13 servos
- Vanilla packed parts (no repack), so you can imagine yourself building from parts ordered separately
Cons:
- My robot after construction has failed servo tests. Some servos did not properly react on control signal. Support require photos and videos, so be ready to provide them to get new parts shipped. Parts are shipped from China, shipping to NJ took 12 days, for example. Anyway, if it doesn't work, then it is easier to return it rather than trying to obtain spare parts. Received parts did not improve situations. I have dive deep on my own what is causing the issue and found that default calibration for servos is incorrect. I have updated Servo.py to properly set angle from 0 to 180 and now all servos started to work well and device has passed finally the servo test.
- Picky to PSU (power adapter). Compatible PSU doesn't come with robot. Refused to charge from 5V@3A SMRAZA PSU that can power RPi4 without issues. Refused to charge from USB ports on my power strip. Accepted to charge from iPhone charger. Charger on robots shows blinking white D4 on incompatible PSU but in instructions it is outlined as "damaged battery" condition. Thats not true.
- Picky to Battery. Compatible batteries are not included with robot, instructions are not clear what are the best batteries to use with robot. I have purchased IMREN 3500 batteries as they recommended in documentation, but integrated charger charges them too slow and it doesn't properly report charge level. 100% charged battery is reported as 75% (3/4) in my case. The battery that works well is reported as has 0% charge. I have verified the charge level on Nitecore D4.
- Hard to detach batteries once attached to charge externally. Why charge externally? See previous bullet point. Have to use screwdriver to pull back batteries. Any accidental physical damage to lithium battery could cause short-circuit in battery and battery fire. Definitely not designed for safety. I advise to learn how to deal with lithium batteries on fire in advance ;-) just to be ready for worst case scenario.
- The software is crap. The client is crashing periodically (may be just on mac, did not test on windows) with segfault. Video streaming doesn't work as well (again, mac). Default servos calibration is not sane.
- Some assemble steps are hard to do without having tiny fingers :-)
- Instructions could be much better. A lot of water in instructions, some statements are incorrect or misleading.
Tips:
- Follow instructions where "tape" is mentioned. Tape in right place could save a lot of time because tape will hold nut in the places where it is hard to hold nuts using fingers.
- If servo test doesn't work, I would recommend to edit "Servo.py" and replace "4096 * ((angle * 10) + 850) / 20000" with "120 + (510 - 120) * (angle / 180)"
- Don't trust battery charge indicator
- Don't trust battery damage indicator
- Use PSU from phone charger
- Don't use IMR batteries (charge level, charger and damage indicator is not correct for them), try regular Samsung dig discharge current batteries
- To achieve best results you need to properly center servos on 90 degrees position. If you can't get that then try these two advices:
a) swap servos - some servos could fit better specific position than others
b) rotate white disk servo arm on 180 degrees - it could work better for some positions
- If you see missing or damaged parts - return and order new one. It is faster than contacting Freenove support and wait for 12 days, especially, if you have just 30 days to return.
I have removed 2 stars because:
- Support is more confusing than helping. Asks to run experiments, swap servos, swap pins, etc then record videos and take photos and upload to them. Finally, not being able to detect root cause - they are sending new parts with 12 days shipping from China. And new parts once arrived did not fix the issue.
- I have to fix provided software on my own manually to get it working.
Top reviews from other countries
The kit arrived well packaged, complete and damage-free. You sure get a lot for your money! Every component worked correctly. If you think something is not right, work on the assumption that YOU have done something wrong, so power down and recheck every connection and re-read the instructions. It is very unlikely that a component is bad out of the box (that's my 45 years of electronics experience talking). It may be bad now, though, if you connected it wrong!
When it comes to the batteries, the tutorial makes it very clear that you must buy high quality 18650's. Unfortunately that is not easy since the majority of cells from eBay or Amazon are fakes. If it says more than 2200mAh or is cheap, it's a fake. I am using genuine Samsung cells now, started out using cheaper cells I had lying around which were a dead loss. With 13 servos running the current drain is high and fake cells will drain rapidly giving all sorts of problems. The battery holder really grabs hold of the cells so take care. If you use good cells, you shouldn't need to take them out (I haven't) since the charging function via USB-C seems to work fine. I do notice the Pi reports lo volts even though there are still 4 bars on the charge indicator.
I suggest you leave everything in the box and work on loading up your Pi FIRST. Load a brand new OS onto a microSD, connect the Pi's HDMI to a monitor, connect a wireless mouse and keyboard, and then power it up. Do all the downloads and config changes the tutorial says and then become familiar with terminal mode and the directories that hold the Python programs. Point being that if you can't get this far, constructing the thing is kind of pointless. No problem - take your time going back over the tutorial (it is very good, errors are easy to spot) and you will get there and learn a lot on the way.
Assembly went well, but the M2 screws are really tiny! Use tape where it says to use tape! Once the Pi is mounted, install the batteries and give them a good charge. Still using the monitor connection and terminal mode, run the servo initialize and mount all the arms at close to 90deg. Then run the function test programs to check all the devices. I found all the programs and devices performed correctly, although I did some editing.
The server/client business is not without its challenges. I first used a windows PC on which to set up VNC and Client. It all works as the tutorial says but the exact sequence of actions is critical. Write down the sequence from power-up all through every time you try so that once you get it all working you have the last correct sequence all written down (no, you won't remember!). Then carefully calibrate the legs per tutorial - this is critical if you want it to walk correctly! I then ran it from both an Ipad and Samsung tablet (which I prefer) so now I can start up and play with the dog using ONLY the one device.
Now I am ready to see what I can really get it to do! Well done, Freenove people, you put a lot of work into it.
Freenove bietet außerdem hervorragenden Support. Als das Robot Shield durch einen verkehrt angeschlossenen Servo Motor beschädigt wurde, gab es innerhalb von Minuten(!) Hilfe durch den Freenove Support und nach Hilfe bei der Fehlersuche sogar das Angebot, ein Ersatz-Shield zu schicken. Vielen Dank nochmal an das Freenove Team, so einen guten Service habe ich bisher noch selten erlebt!