• sales

    +86-0755-88291180

Chapter 2 of KitiBot-Microbit: Keys User Guide

Keys

There are two keys on Micro:bit, A and B. In this Chapter, we are using them.


Keys programming we need to use the block "on button .. pressed". With the block, the micro:bit could detect if key A is pressed or if A and B keys are pressed at the same time. If the key is pressed, the scripts in this block will run.


According to Chapter 1, let's learn how to program keys. We try to create a project that LED matrix display A, B and C separately when key A, B, A and B are pressed.


First, create new project. Find block "on button A pressed" in Input class and drag it to the right. Add one string display block. Copy the button and string blocks change for B key and AB keys operation.

Download the code to micro:bit for testing. You can also check the effect according to left simulate area.

Buttons could also be controlled by another block. Different with the last one, the block we used before run the included program when buttons are pressed. This block will return a value "true" if buttons are pressed, otherwise return value "false"


We create a new project and rewrite it with this block. In this project, we need to use if-else block. If it get ture, the blocks included will run, otherwise the blocks in else will run.


Add blocks that display string when buttons are pressed. You can simulate the effect on the left area


If you are much careful, you will find that the project first detect if A and B are pressed at the same time, then detect if A and B is pressed separately. You can try to change the order to test what will happen if the order is changed

TAG: Industrial RJ45 Ethernet To 16-ch Relay Module Modbus RTU TCP With Protection and guide rails Raspberry Pi 5 PCIe to M.2 NVME SSD And Gigabit Ethernet RJ45 HAT RTL8111H M_KEY For 2230/2242/2260/2280 LuckFox SC3336 PC Monitor Screen Raspberry Pi 1.3inch LCD Sipeed Lichee Tang Nano 9K FPGA MINI Development Board GW1NR-9 GOAI Gowin Raspberry Pi Zero 4G Cat1 With USB Hub Expansion Board LTE/GPS/EA/EU also For Zero 2W ESP32-S3FH4R2-MINI-Tiny-Stamp-WIFI-Bluetooth5 waveshare Banana Pi Raspberry Pi PICO Keyboard Jetson Nano IO Board Raspberry Pi Pico 2 RP2350 2.8 inch LCD Capacitive TouchScreen Development Board 240x320 Display QMI8658 6-Axis /PCM5101 Audio /SD /RTC /Battery Port Raspberry Pi Camera V2 Raspberry Pi Touch Display 2 Official Original Capacitive TouchScreen 7 inch LCD TFT 720x1280 UART TTL To RS485 C Built-In Protection Circuits Raspberry Pi HQ Camera Official Original High Quality For M12 Lenses 12.3MP IMX477 Sensor Modbus-Protocol-Specification User Guide ESP32 S3 Development Board 1.91 inch AMOLED Display Screen For Arduino LVGL With SD-Port/ QMI8658C 6-Axis Sensor Pi5