• sales

    +86-0755-88291180

Chapter 7 of KitiBot-Microbit: Shaking, KitiBot User Guide

Shaking, KitiBot

In this chapter we learn how to control the steering gear as well as how to make the robot shake its 'head'.

Servo


The steering gear is a servo control. The head of the robot is fitted with a steering gear and he can rotate a certain angle. Below is the block to control the steering gear


: This block could be used to control servo

At 90 degrees, the robot looks forward;

At 0 degrees, the robot looks to the right;

At 180 degrees, the robot looks to the left.


After downloading, the robot shakes its head quickly looking forward. If robot didn't look forward, you can adjust the head of robot to look forward.

Control servo with button



Press A, robot shake to left, and it shake right if press B. Keep forward when both A and B are pressed.

Control shaking angle


Let robot shakes slower and stop in certain angle.


We divided the range of 0 to 180 degrees into several parts within an average. Pressing the key to turn the head, it will move to its next division. If the button is still pressed it will move to the next division and so on, until it reaches a top.


Here, we first set both “pos” and “step” variables. Pos value represents the current position of the steering gear. Step represents the angle of each rotation. A positive number means a left turn. And a negative number means a right turn.


The program starts by setting the “pos” to 90 degrees and turning the steering wheel to 90 degrees.That is, making the robot facing forward.

Then, the program enters into an infinite loop, and determines whether A/B buttons are pressed or released. If the key A is pressed, the step is set to 5, which means the robot looks to the left and turns 5 degrees each time. If the key B is pressed, the step is set to -5, which means the robot looks to the right, turning 5 degrees each time.

Increases the current angle “pos” by its current “step” value, this is the next angle robot will shake.

【Note】If the step is a positive integer, the value of the POS increases, and if the step is a negative integer, the value of the POS decreases. The allowed angle range of servo is from 0 to 180.


Finally, don't forget to let the servo shake to new degree, robot could only shake with this block.Change the pause time could change the shaking speed


TAG: LuckFox Core3566 Laser 450nm 5W high precision module Adjustable focal length For Laser Carving / Laser 3D Printing Sensor Development Board Raspberry Pi 5 5V5A Pi5 Pure-Copper Active Cooler Raspberry Pi Camera Serial UART Bus Servo ST3215-HS 20KG.CM High Speed Magnetic Encoder 360° Large Torque Magnetic Encoder Servo Motor 45KG.CM 24V 360° RS485 High Precision And Large Torque Serial UART Bus Servo ST3025 TTL 40KG.CM Magnetic Encoder 360° High Precision And Large Torque 7inch-USB-Monitor user guide Modbus RTU Serial UART Bus Servo CF35-12 TTL 35KG.CM Magnetic-Encoder High precision and Large torque Secondary Screen Raspberry Pi 5 DSI Bookworm Raspberry Pi 5 5V5A Power X1007 Raspberry Pi 5 PCIe to Dual 2.5" SATA HDD/SSD Double-SATA (NOT BOOT From SATA/SSD Smart Car Raspberry Pi LCD Raspberry Pi Touch Display 2 Official Original Capacitive TouchScreen 7 inch LCD TFT 720x1280 electronic Tag