jcubuntu/pxt-iKB1 1.0.2 GitHub

iKB-1 block package for iKB-1 Board

powered by micro:bit

The package adds support for the iKB-1 conroller board from Innovative Experiment INEX.

!Caution do not use iKB-1 with i-BIT board the I2C Address is same ADC IC on i-BIT board (0x48)

micro:bit Pin Assignment

The following micro:bit pins are used for communication to iKB-1 to use analog and digital sensors, DC motor drivers and servo motors:

• GND – GND connected to iKB-1 GND
• 3V – 3V connected to iKB-1 +3.3
• P19 – SCL connected to iKB-1 SCL
• P20 – SDA connected to iKB-1 SDA

Motor control Block

Use iKB1’s motor block to drives motor forward and backward. The speed motor is adjustable between 0 to 100.

• The dirrection must be select either Forward or Backward
• Speed is an integer value between 0 - 100

iKB1.Motor(iKB1Motor.Forward, 100)

iKB1.Motor(iKB1Motor.Backward, 100)

Spin Block

Spin block is used to control both motors separately. For example, choose one motor spin with forward direction another one spin with backward direction.

• The Spin select direction must be either Left or Right
• Speed is an integer value between 0 - 100

iKB1.Spin(iKB1Spin.Left, 100)

iKB1.Spin(iKB1Spin.Right, 100)

Turn Block

The Turn block is used to to control the robot movment by turning. The one motor will stop, another one is moving. The vipot point is a center of the robot body.

• The Turn select direction must be either Left or Right
• Speed is an integer value between 0 - 100

iKB1.Turn(iKB1Turn.Left, 100)

iKB1.Turn(iKB1Turn.Right, 100)

Motor Stop Block

The Motor Stop block is used to stop both motors. The speed is set to 0 automatic.

iKB1.AO()

Servo Block

Use this block for control the servo port 10-15 on iKB-1 board moving degree from -1 to 200

• Degree is an integer value between (-1) - 200

iKB1.Servo(sv.SV10, 90)

ADC Block

This block is used to read the analog input data from the iKB-1 board. The resolution of conversion is 10-bit. Data will be 0 to 1023. iBIT have 8-ch analog inputs. The pinout voltage range is 0 to +5V

• Analog sensor port are ADC0 - ADC7
• Select analog channel from ADC0 - ADC7 for reading the analog sensor.
• Get the analog value to set the conditions for the robot’s mission.

Example

• Read the analog input 0 and display the conversion data on micro:bit. User can change the analog channel any time.

basic.showNumber(iKB1.ADC(iKB1ADC.ADC0))

• Drive the motors with Forward and Backward by counting speed 0 - 100

let speed = 0
basic.forever(() => {
    for (let speed = 0; speed <= 100; speed++) {
        iKB1.Motor(iKB1Motor.Forward, speed)
        basic.pause(50)
    }
    for (let speed = 0; speed <= 100; speed++) {
        iKB1.Motor(iKB1Motor.Backward, speed)
        basic.pause(50)
    }
})

• Drive the motors by pressing button A and B. Turn Left by speed 50 when pressed button A and Turn Right by speed 50 when pressed button B.

input.onButtonPressed(Button.A, () => {
    iKB1.Turn(iKB1Turn.Left, 50)
})
input.onButtonPressed(Button.B, () => {
    iKB1.Turn(iKB1Turn.Right, 50)
})

• Spin the motors by pressing button A and B. Spin Left by speed 50 when pressed button A and Spin Right by speed 50 when pressed button B.

input.onButtonPressed(Button.A, () => {
    iKB1.Spin(iKB1Spin.Left, 50)
})
input.onButtonPressed(Button.B, () => {
    iKB1.Spin(iKB1Spin.Right, 50)
})

• Example for Servo, drive the servo motor’s movement angle at Servo output 10 and 11 from 0 - 180 and back to 0 to restart again.

basic.forever(() => {
    for (let Degree = 0; Degree <= 180; Degree++) {
        iKB1.Servo(sv.SV10, Degree)
        iiKB1.Servo(sv.SV11, Degree)
        basic.pause(10)
        while (Degree == 180) {
            Degree = 0
        }
    }
})

• Example for set Servo Stop or set freedom servo.

input.onButtonPressed(Button.A, () => {
    iKB1.Servo(sv.SV10, 90)
})
input.onButtonPressed(Button.B, () => {
    iKB1.Servo(sv.SV10,-1)
})

License

MIT

Supported targets

• for PXT/microbit

ikb1=github:jcubuntu/pxt-iKB1#v1.0.2