Wie programmiere ich meinen ersten Mini-Computer?

1. 00:00Welcome to the second week. Last week
2. 00:02we've familiarized ourselves with some sensors
3. 00:04made. This week several projects
4. 00:06Use engines. But what are available for engines and
5. 00:10how do they differ?
6. 00:11A motor is used to drive an to trigger a movement. For example
7. 00:16you can shoot things with it and
8. 00:18and move it around. engines also make it possible for you to
9. 00:22bspw can move water, for example, by using it
10. 00:25pump. You will also about the pins of your
11. 00:28microcontrollers.
12. 00:30You need some types of engine
13. 00:33motor driver, quasi a Amplifier to move the motor.
14. 00:37Because compared to the most sensors, need
15. 00:40engines much more power.
16. 00:42But the data pins of the ESP microcontrollers
17. 00:46aren't made for it, that there's a lot of electricity flowing over it.
18. 00:49The power pins, so ground, 3.3 and 5V,
19. 00:54have already more . . .and I'm going to get out of here. Also, the
20. 00:58Control of motors through the use of a
21. 01:00library is facilitated,
22. 01:01which takes over the logic for the control.
23. 01:04In the next lesson.
24. 01:06show advantages, because in the Basically every sensor and
25. 01:10any engine even without Library controllable
26. 01:13but with the library of the Code becomes much simpler.
27. 01:17We distinguish three types of engines.
28. 01:20On the left you see a DC motor, next to it a
29. 01:22Servo motor and all right a stepper motor.
30. 01:25We have here certain characteristics in the
31. 01:28Comparison that is most interesting for you
32. 01:30will be. On the one hand, the engines have
33. 01:32different number of connections. The DC motor has
34. 01:35only two connections for plus and minus. The
35. 01:38Servo and Stepper Motors have more than
36. 01:402 connections to connect the Motors also control to
37. 01:42can. So we are already with one of the
38. 01:45the biggest differences. The DC motor can be
39. 01:48but you can't don't know how much
40. 01:50degrees or rounds he spun.
41. 01:51The Servo the engine goes
42. 01:54to the degree accurate between 0 and 180 degrees.
43. 01:57But neither on. After 180 degrees.
44. 01:59That's the end of it. just back. At
45. 02:01Stepper motor happens
46. 02:03turning in steps. So you can give him
47. 02:04say: "turn yourself around Step further" and the
48. 02:07he'll do it. One step in this process has a
49. 02:09fixed angles, for example ½ degrees. If you're
50. 02:12then says: "Turn 180 times a step",
51. 02:15then he turned 90 degrees at the end. In contrast
52. 02:18to the servo you can also use the stepper motor
53. 02:20as many times as you want.
54. 02:22The control for the DC motor and stepper motor is done with
55. 02:26a motor driver. At Servo is the already
56. 02:29is built in. You can so just put the pins on
57. 02:32connect the microcontroller. An insert for
58. 02:35the DC motor would be a ventilator, for example, because
59. 02:40because it doesn't matter, how far the engine will go
60. 02:42It's just that it's spinning. At
61. 02:46Servo motor offers a robot arm, which is
62. 02:48must precisely adjust certain angles.
63. 02:50Stepper engines are used in most 3D printers
64. 02:54to move the print head.
65. 02:56That's it with the overview. to engines. In the
66. 02:59next lesson will be we're headed for one.

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