STEVAL-IPR002V2
Data logger & event logger evaluation system based on the
M24LR64E-R EEPROM
Data brief
Description
The STEVAL-IPR002V2 product evaluation board
is based on the M24LR64E-R dual interface
EEPROM which targets a wide range of
applications such as industrial and medical
equipment, and consumer electronics.
RFID (13.56 MHz) and I2C serial communication
are the two interfaces available with EEPROM.
This evaluation platform offers an autonomous
battery-powered RFID tag with logging capability
for recording and storing data from several
sensors that measure temperature, humidity,
vibration, free-fall, tamper and light.
Features
• Demonstrates the dual communication
interfaces (RF & I2C) of the M24LR64E-R
EEPROM
• Records temperature, motion (MEMS),
humidity and light (photo diode) parameters in
a dual EEPROM
• Two operation modes:
– RFID mode for reading and writing the
EEPROM using an RFID kit (starter kit
RFID reader)
– I2C read and write using an STM8L
microcontroller
• Utilizes a 20 mm x 40 mm inductive antenna for
RF communication with starter kit RFID reader
• Includes a graphical user interface to evaluate
the logged information from EEPROM
• RoHS compliant
March 2014
The value from the various sensors is stored
within the EEPROM, and then at later stages the
logged values can be retrieved through an RFID
interface for evaluation. This data logger can be
attached to any transported article, allowing it to
be tracked throughout the supply chain, and the
data can be scanned at any point using an RFID
reader.
This system can operate in two modes: data
logger mode and event logger mode.
In data logger mode, the system reads all sensor
values once per second, and stores it in the
EEPROM. The system stops logging the data
when the allocated memory for a particular sensor
is full.
In event logger mode, the system configures the
threshold limits for each sensor. When the sense
value is outside the set threshold limits, it is stored
in the EEPROM.
DocID026058 Rev 1
For further information contact your local STMicroelectronics sales office.
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Schematic diagram
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STEVAL-IPR002V2
Schematic diagram
Figure 1. STEVAL-IPR002V2 circuit schematic
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Revision history
Revision history
Table 1. Document revision history
Date
Revision
12-Mar-2014
1
Changes
Initial release.
DocID026058 Rev 1
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