bubble#
Overview#
This demo demonstrates basic usage of the on-board accelerometer to implement a bubble level. A bubble level utilizes two axes to visually show deviation from a level plane (0 degrees) on a given axis.
Supported Boards#
EVK-MCIMX7ULP
Hardware requirements
Micro USB cable
MCIMX7ULP-EVK board
J-Link Debug Probe
5V power supply
Oscilloscope
Personal Computer
Board settings
No special settings are required.
Please note this application can’t support running with Linux BSP!
Prepare the Demo
Connect 5V power supply and J-Link Debug Probe to the board, switch SW1 to power on the board.
Connect a micro USB cable between the host PC and the J6 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the board is programmed, use oscilloscope probe to touch the R104/R107 arounding U9 module position, then simply tilt the board to see the duty cycle change of the pwm. One pwm indicates X-axis angle while another indicates Y-axis angle. When the example runs successfully, you can see the similar information from the terminal as below.
Welcome to the BUBBLE example
You will see angle data change in the console when change the angles of board
x= 23 y = 56
x= 9 y = 53
x= 14 y = 49
......
FRDM-K32L2A4S
Hardware requirements
Mini/Micro USB cable
FRDM-K32L2A4S board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see the change of angle data and LED brightness when change the angles of board
x= 6 y = 22
x= 8 y = 26
x= 10 y = 28
x= 10 y = 28
x= 11 y = 29
x= 11 y = 29
FRDM-K32L2B
Hardware requirements
Mini/Micro USB cable
FRDM-K32L2B board
Personal Computer
Board settings
FXOS8700 must be available on board to run this example. If it’s not soldered, the example cannot work.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see the change of angle data and LED brightness when change the angles of board
x= 6 y = 22 x= 8 y = 26 x= 10 y = 28 x= 10 y = 28 x= 11 y = 29 x= 11 y = 29
FRDM-K32L3A6
Hardware requirements
Mini/Micro USB cable
FRDM-K32L3A6 board
Personal Computer
Board settings
Please ensure there is FXOS8700 on board
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see angle data change in the console when change the angles of board
x= 6 y = 22
x= 8 y = 26
x= 10 y = 28
x= 10 y = 28
x= 11 y = 29
x= 11 y = 29
FRDM-KE16Z
Hardware requirements
Micro USB cable
FRDM-KE16Z board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see the change of angle data and LED brightness when change the angles of board
x= 6 y = 22
x= 8 y = 26
x= 10 y = 28
x= 10 y = 28
x= 11 y = 29
x= 11 y = 29
FRDM-MCXC041
Hardware requirements
Type-C USB cable
FRDM-MCXC041 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
9600 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see angle data change in the console when change the angles of board
x= 6 y = 22 x= 8 y = 26 x= 10 y = 28 x= 10 y = 28 x= 11 y = 29 x= 11 y = 29
FRDM-MCXC444
Hardware requirements
Type-C USB cable
FRDM-MCXC444 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see angle data change in the console when change the angles of board
x= 6 y = 22 x= 8 y = 26 x= 10 y = 28 x= 10 y = 28 x= 11 y = 29 x= 11 y = 29
FRDM-MCXN236
Overview
The bubble level demo demonstrates basic usage of the on-board accelerometer to implement a bubble level. A bubble level utilizes two axes to visually show deviation from a level plane (0 degrees) on a given axis.
Hardware requirements
Type-C USB cable
FRDM-MCXN236 board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J10) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see angle data change in the console when change the angles of board
x= 6 y = 22 x= 8 y = 26 x= 10 y = 28 x= 10 y = 28 x= 11 y = 29 x= 11 y = 29
FRDM-MCXE31B
Hardware requirements
Type-C USB cable
FRDM-MCXE31B board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see the change of LED brightness when change angles of board
x= 6 y = 22
x= 8 y = 26
x= 10 y = 28
x= 10 y = 28
x= 11 y = 29
x= 11 y = 29
FRDM-MCXE32B
Hardware requirements
Type-C USB cable
FRDM-MCXE32B board
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as shown below.
Welcome to the BUBBLE example
You will see the change of LED brightness when change angles of board
x= 6 y = 22
x= 8 y = 26
x= 10 y = 28
x= 10 y = 28
x= 11 y = 29
x= 11 y = 29