Love these videos, keep up the good work. Though I was wondering, where do you buy your parts, and also what parts should I consider buying if I am starting to get into Arduino?
SparkFun and Adafruit are both great vendors for hobbyist electronics. You can also buy most things on Amazon, but there are so many parts available that sometimes it can be confusing and harder to find what you want.
If you are just starting and want to learn the basics, then at minimum you want a starter kit that has an Arduino, USB cable, breadboard, jumper wires, LEDs, resistors, and buttons. That will be enough for you to follow the first few videos in our tutorial series. Beyond that, there are more expensive intermediate and advanced starter kits that include additional sensors and motors etc. It depends on how much money you want to spend up front vs having to buy more parts later. If you plan to learn more eventually it may be worth just buying one of the bigger starter kits now.
how do i make it not dependant to computer as in like I want it to be powered by a battery so that it can move on it's own without the connection of the computer?
Is there a way to remove the range mentioned at 2:40? The servo I am using only has one velocity for every 10 power, and I want it to increase linearly. Is there another type of servo to use?
1:50 I used the Sweep example code and removed all code in the loop. The sevo barely moves then stops moving. Any idea as to why it might happen? How can I look at the header file in a file editor? Thanks
If you remove the code in the loop, then you still have the myservo.attach(9); line in the setup function that will run. This may cause the servo to move briefly depending on its position before the code started. As for other Arduino IDE questions, you are better off asking on the official Arduino forums.
You would need to either time how long it takes to make a turn (which can vary if there is a load on the motor) or use something called an encoder for feedback control to count how many times it turns.
For a continuous rotation servo, you have control over its speed, but not its angular position. A positional servo (which we have a separate tutorial on) lets you control the angle but it won't go through continuous full 360 degree rotations. To get position feedback and control for a continuous rotation servo, you need additional information from an encoder which measures the motor's position (unfortunately we don't have a tutorial on that yet).
@@Science.Buddies I know how a normal servo works and how you can get angular position. But without angular position (or at least number of 360 turn) information, it is no more a servo. Just like a dc motor with gear reduction and a driver on board. Because you can do that "encoder control" with any dc motor. Actually there are dc motors with built-in encoders available at very appropriate prices.
If you want to turn exactly 90 degrees, it would be better to use a positional servo. You could approximate it with a continuous servo by timing how long it takes the servo to turn 90 degrees and using delays to turn it on for a certain amount of time.
The servo library is written for positional servos - if you use it with a continuous rotation servo, you will control the speed of the servo, not its position.
Hi - to do this you would need a "real time clock" (RTC) add-on for the Arduino UNO R3. The Arduino UNO R4 contains a built-in real-time clock: docs.arduino.cc/tutorials/uno-r4-minima/rtc/
You dont need the loop function if you only use this for testing the continuous servo, if you want to adjust the speed while its rotating or you have other components, then you can use the loop function
sorry, can u explain why i dont need a loop function and why id need one if other componenets were atttached? Thanks for ur help so far and the quick response!@@teovanlung-oa
Hi - if you are new to Arduino, we recommend starting at the beginning of our tutorial series (linked in the description), which will explain more about what the setup and loop functions do.
