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Elegoo Arduino Project Smart Robot Car Kit with Four-wheel Drives, UNO R3, Link Tracking Module, Ultrasonic Sensor, Bluetooth module, Remote, ect. Intelligent and Educational Car for Teens and Adults
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- The most economical and fun robot car kit with simple mechanical structure, a nice system and very easy to install.
- CD with the best tutorial including the video which bring you to the robot car world .
- there is a ultrasonic sensor to keep the car way from barrier.
- 3pcs line tracking module can make the car according to the specific travel. IR receiver assist you control the cay by remote.
- you can install the APP(in the CD) on your phone which can control the car with Bluetooth module.
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This item Elegoo Arduino Project Smart Robot Car Kit with Four-wheel Drives, UNO R3, Link Tracking Module, Ultrasonic Sensor, Bluetooth module, Remote, ect. Intelligent and Educational Car for Teens and Adults
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|Sold By||Elegoo||Elegoo||Elegoo||Elegoo||Elegoo||Speed Of Light Distributors - Shipping at the Speed of Light|
|Item Dimensions||7.48 x 10.04 x 3.51 in||8.4 x 13.7 x 1.85 in||8.4 x 13.7 x 1.85 in||7.09 x 10.63 x 1.73 in||3.54 x 5.7 x 1.57 in||6.5 x 9.6 x 2.4 in|
|Item Weight||2.3 lbs||2.15 lbs||2.15 lbs||0.88 lb||0.5 lb||2.55 lbs|
Elegoo Inc. is a professional manufacturer and exporter that is concerned with the design, development production and marketing of arduino, 3d printers, raspberry pi and STM32.
Our Dream is to make the best price and best quality produce for customers.
So we would like to receive your valuable suggestions for our products and we can improve them for you.
1pcs UNO R3
1pcs USB cable
1pcs V5.0 extension board
1pcs L298N motor driver board
1pcs ultrasonic Sensor
1pcs ultrasonic holder
1pcs servo motor
1pcs bluetooth module
1pcs IR receiver
3pcs line tracking module
1pcs cell box
8pcs screws (long)
38pcs screws (short)
4pcs aluminium block
6pcs copper cylinder
6pcs copper screws
20pcs dupont wires
1pcs CD with tutorial
Seller Warranty Descriptionhalf year warranty on parts and labor
Top Customer Reviews
If you have never built a kit like this before it can be daunting. If you stumble on the technical issues or try and use some advanced features most people will NOT be able to get this to work as they are nuanced issues with how an Arduino works. Let me explain
Technical problem and FIX: The issue is around the motor drivers. They have the motors tied to pins 5,6,7,8,9 and 10. 5 and 10 control the speed of each side and 6-9 control the motor direction. If you just use pins 5 and 10 to go full speed using a digital "HIGH" setting then everything will work. The issue is that this speed is too fast for some things and not as fun as variable speeds. If you try to control the speed using PWM and a setting below 255(0-255) it will not work. This is easily found in the wall avoidance(maze) sample code. It has the car go slow using analog PWM on pins 5 and 10 so it doesn't go so fast that it cannot avoid an obstacle. When you slow it down using PWM on a digital pin 10 AND try and use the servo library you have an issue. Int his case the servo library is used to control the "eyes" to see the walls. The issue is that pin 9 and 10 lose PWM capabilities when the servo library is used. Very nuanced and it took me an hour to figure this out. To be clear I have a good bit of experience with Arduino. So what is the solution? Move the motor driver to a different set of pins that still allow PWM on a digital pin when the servo library is used. Here is the arduino article with the info. [...]
So I moved the connector from pins 8,9 and 10 to pins 1,2 and 3. There is something connected to pin 3 already so I moved it back over the pin 8 because it only uses digital(HIGH/LOW). Doing this requires you to change all the constants at the top of each program but you can do it in all of them and keep them consistent. Once this change is made everything will work.
One more thing to remember is that the settings for things like speed and timing will need tweaking. It is easy but necessary. The best part about the kit is that it works fairly well out of the box but some small tweaks to the code will make things work much better. Great learning experience as the code is pretty simple. The biggest thing for me is that it worked. Most of these kits don't work without major rework. Not the case here. Buy it and enjoy.
The Pros: The mounting plates used are now both made from a thick acrylic. All of the parts come in neatly labeled packaging and the instructions include high quality photos. The batteries have been upgraded to two 7.4Wh Li-ion that fit smoothly into cell box. The ArduinoUno R3 works great but you may need to unplug any extra peripherals before flashing codes to it. The included Sensor Shield has several unused pins which means there is plenty of room for your own additions to your build. Everything you need to make this project work, including Arduino example libraries, are in an impressively packed little container. The Elegoo Support Team is very helpful and responsive to concerns.
The Cons: I would rate the necessary experience level at about a 2 or 2.5 out of 5. A novice with patience can do it but having at least some knowledge of what the parts are and how to put them together may come in handy. If you can sort through instructions then you will likely do fine. If you have OCD you may need to be patient while looking through the literature, as the instructions are translated into English and can occasionally seem short or direct. The pictures definitely helped me more than the written but that is not to say that they are bad. More-so that I am a perfectionist.
Conclusion: I have been enjoying this project and it has made learning about Arduinos and programming more interesting to me. I get to write code and then see my progress work on a physical machine instead of just a screen. While toying with the IR codes I changed one "if" to a "while" and turned my smartcar into a remote controlled IR car. Apparently the car was having to much fun driving itself so I needed to take control back. Anyways hope this update helps.
The assembly went smoothly until I hit one snag: the documentation provided was not clear about how to wire the battery and where to connect the various pins. Ultimately I was able to figure out the pin connections by reading the code in the various example sketches, and I figured out how to wire the battery by trial and error.
I sent a support request to Elegoo and they responded in less than 48 hours with links to a large set of videos that went into considerable detail.
Ultimately, this is an outstanding kit in almost every way, but it would be even better if they published a list of pin connections. Since they didn't, here is what I was able to cobble together:
PIN DEVICE USAGE
12 IR Receiver ReceiverPin
11 Line Tracker 1 Tracker1Pin
10 H-Bridge ENA
9 H-Bridge IN1
8 H-Bridge IN2
7 H-Bridge IN3
6 H-Bridge IN4
5 H-Bridge ENB
4 Line Tracker 2 Tracker2Pin
3 Servo ServoPin
2 Line Tracker 3 Tracker3Pin
A4 HC-SR04 EchoPin
A5 HC-SR04 TriggerPin