• 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: ESP32 S3 Development Board 1.46 inch Round LCD 1.46inch Display 412x412 QMI8658 Sensor / MIC / SD /MP3 Audio /Battery Port LVGL/HMI For Arduino ADXL354C Sensor Milk-V Duo Raspberry Pi GPS GNSS Expansion Board L76K Beidou (BDS) GLONASS QZSS A-GNSS Also For Jeston Raspberry Pi 5 POE + PCIe to M.2 NVMe SSD Board HAT+ Pi5 2242/2230 Power over Ethernet BPI-M4 Berry IPS Raspberry Pi 12.3 inch DSI MIPI Display TouchScreen LCD 720x1920 Luckfox Lyra Omni3576 RK3576 LuckFox Pico pro RM520N GL 5G/4G/3G M.2 Moudle IoT EMBB For LTE-A/NSA/SA And GNSS For DFOTA /VoLTE For Quectel RP2040 LoRa-HF ESP32 C3 Raspberry-Pi-1.54inch-LCD-Display-Touchscreen-configuration-Bookworm-Lite For Pi5 Gyroscope Raspberry Pi Camera OV5647 Camera (F) Wireless AW CB375N 2.4G/5GHz Dual Band WiFi5 Wireless module RTL8822CE CG Bluetooth 5.0 ESP32 IR Thermal Imaging Camera Raspberry Pi 3.5 inch LCD G Display Resistive TouchScreen 60fps ST7796 320x480 Also For Arduino/Pico2/ESP32/RP2040/RP2350 User Guide Raspberry pi Pico development board RP2040 Core A Based On Official RP2040 Dual Core Processor