Learning and testing various sensors of STM32DISCOVERYF4 board to bring together a project . This project to determine your position and the point of beginning. Relies on the direction that shifts the board.

This project is to make use 3 sensor devices.

1. LIS302DL: 3-axis accelerometer

2. MP45DT02: digital microphone

3. CS43L22: audio DAC, speaker driver

The LIS302DL is an ultra compact low-power three axes linear accelerometer. It includes a sensing element and an IC interface able to provide the measured acceleration to the external world through I2C/SPI serial interface.

View Code

Datasheet

http://www.st.com/resource/en/datasheet/lis302dl.pdf

Video

https://www.youtube.com/watch?v=IbuJDEGVJcQ&feature=youtu.be

The MP45DT02 is a compact, low-power, topport, omnidirectional, digital MEMS microphone. The MP45DT02 is built with a sensing element and an IC interface with stereo capability.

The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process to produce audio sensors.

The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit able to provide a digital signal externally in PDM format.

View Code

Datasheet

http://www.st.com/resource/en/datasheet/mp45dt02-m.pdf

Video

https://www.youtube.com/watch?v=9F-v_QhTZV4&feature=youtu.be

The CS43L22 is a highly integrated, low power stereo DAC with headphone and Class D speaker amplifiers. The CS43L22 offers many features suitable for low power, portable system applications

The DAC output path includes a digital signal processing engine with various fixed function controls. Tone Control provides bass and treble adjustment of four selectable corner frequencies. Digital Volume controls may be configured to change on soft ramp transitions while the analog controls can be configured to occur on every zero crossing. The DAC also includes de-emphasis, limiting functions and a BEEP generator delivering tones selectable across a range of two full octaves

View Code

Datasheet

https://www.cirrus.com/cn/pubs/proDatasheet/CS43L22_F2.pdf

Video

https://www.youtube.com/watch?v=2tkpF6-uGa8&feature=youtu.be

This project is to make use of 3-axis accelerometer, digital microphone and speaker driver of STM32DISCOVERYF4 board to make "The Position of You". In 8 directions of tilt is the way that you can move. When you select the way, you will press push button to select that way. (Number of movement depend on 'input value'.) You can speak loudly to microphine for reset all select ways. When you finish, board will play sound 3 time and show result.

View Code

Video

https://youtu.be/_SPimCJG_0Q

##Reference

STM32CubeMX Eclipse plug in for STM32 configuration and initialization C code generation

http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-configurators-and-code-generators/stsw-stm32095.html

To install STM32CubeMX as an Eclipse IDE plug-in:

http://www.openstm32.org/forumthread2046

5730625221 Mr.Sitthichai Saejia

Thank you "CP41 femily"

Final Project of "HARDWARE SYNTHESIS LABORATORY I" 2016/1.

Computer Engineering CP41.

Faculty of Engineering, Chulalongkorn University.