The interest of physiological data sensing and recording using wireless body sensor network has increased in\r\nrecent years due to the advancement of miniature and portable electronic devices. In this study, the design of a\r\nportable and rechargeable data logger with high data rate multiple wireless connectivity (Bluetooth and 2.4-GHz\r\nradio frequency) is discussed. The data are logged in micro secure digital (SD) cards and can be transferred to PC or\r\nSmartphone using SD card reader, USB interface, or Bluetooth wireless link. Analog signals can also be logged\r\nthrough an 8-channel analog-to-digital interface. A graphical LCD with touch screen is added for control and\r\ndiagnosis. The hardware is generic and targeted for various medical imaging and data collection applications. The\r\nfunctionality of the prototype is later tested for wireless capsule endoscopy and skin temperature logging\r\napplication.
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