User's Manual

DocID023883 Rev 3 5/19
UM1589 Quick start
1 Quick start
The M24LR-DISCOVERY kit is a low-cost and ready-to-use development kit used to
evaluate the functions and performance of the M24LR Dual Interface EEPROM family and
its energy harvesting capability.
For more information on the M24LR-DISCOVERY kit and associated demonstration
software, please visit www.st.com/m24lr04e-discovery.
1.1 Getting started with the M24LR04E Dual Interface EEPROM
1. On the M24LR board, ensure that a jumper is placed on connector JP1 in the RF power
position (jumper on the right side as shown in Figure 4).
2. Download and install the M24LR/CR95 application software setup file [STSW-
M24LR011] available at www.st.com/m24lr04e-discovery.
3. Connect the RF transceiver demo board to a PC with a USB cable.
4. Launch setup.exe, and select CR95HF Demo Kit. Then, open the Demo NDEF
messages menu and select Show Demo NDEF & Energy Harvesting.
5. Place the M24LR board antenna close to the RF transceiver demo board antenna.
6. The M24LR board starts in Message Display mode (The “M24LR04E-DISCOVERY”
message scrolls across the screen from right to left).
You can read the current NDEF message stored in the M24LR04E-R by clicking the
Read NDEF message button of the PC software.
You can also write an new NDEF message: it will be automatically displayed on the
M24LR board LCD screen after programming.
7. To change the user mode, press push button B2 (blue button on the left side of the
board). Table 2 lists the user modes available.
To study or modify the M24LR board application project related to this demo, please visit
dedicated webpages on www.st.com/m24lr04e-discovery.
Table 2. Available user modes
Mode Description
1 Displays the NDEF text message stored in the M24LR04E Dual Interface EEPROM.
2 Displays the voltage powering the M24LR board.
3 Displays the ambient temperature, measured using the temperature sensor.