User Manual
Table Of Contents
- Revision History
- Table of Contents
- Chapter 1 Introduction
- Chapter 2 Wireless Sensing Triple Axis Reference design introduction
- Chapter 3 Sensor Board description
- 3.1 Board overview
- 3.2 A/D conversion of XYZ levels
- 3.3 Power management
- 3.4 ZSTAR Sensor Board hardware overview
- 3.4.1 Analog connections
- 3.4.2 g-select connections
- 3.4.3 BDM (Background Debug Mode) connections
- 3.4.4 Sensor Board schematics
- 3.4.5 Button connections
- 3.4.6 MC13191 to MC9S08QG8 microcontroller interface
- 3.4.7 MC13191 RF interface
- 3.4.8 Clocking options of MC9S08QG8
- 3.4.9 LED indicators connections
- 3.4.10 Power supply
- 3.5 Bill of Materials
- Chapter 4 USB stick board description
- Chapter 5 Software Design
- 5.1 Introduction
- 5.2 SMAC (Simple Media Access Controller)
- 5.3 ZSTAR RF protocol
- 5.4 STAR protocol and ZSTAR extensions (over USB)
- 5.5 Bootloader
- Chapter 6 Application Setup
- Appendix A References
Wireless Sensing Triple Axis Reference design, Rev. 0.9
Freescale Semiconductor 15
Chapter 3 Sensor Board description
3.1 Board overview
The Sensor Board utilizes a small footprint size dual-layer printed circuit board (PCB) containing all the
necessary circuitry for MMA7260Q accelerometer sensing and transferring data over a radio frequency
(RF).
Figure 3-1Sensor Board overview
The board is powered by a Lithium coin-sized CR2032 battery with provisions also made for the larger
capacity CR2477 size. The block diagram of the board is as follows:
Lithium battery on the opposite side
MC13191
MC9S08QG8
MMA7260Q
Battery Switch
LED indicators
PCB antennas
BDM interface
Buttons