Data Sheet
  VMA202 
V. 01 – 08/03/2017  3  ©Velleman nv 
5.  Overview 
VMA202 
A dedicated and well-designed data logging shield for Arduino
®
. 
The SD card interface works with FAT16 or FAT32 formatted cards. The 3.3 V level shifter circuitry prevents 
damage to your SD card. 
The real-time clock (RTC) keeps the time going even when the Arduino
®
 is unplugged. The battery back-up 
lasts for years. 
Works with Arduino
®
 Uno, Duemilanove, Diecimila, Leonardo or ADK/Mega R3 or higher. ADK/Mega R2 or 
lower are not supported. 
  back-up battery ............................................................................. 1 x CR1220 battery (incl.) 
  dimensions ............................................................................................... 43 x 17 x 9 mm 
6.  Testing 
1.  Plug your VMA202 into your Arduino
®
 Uno (VMA100). 
2.  Insert a formatted SD card (FAT16 or FAT32) into the slot. 
6.1  Testing the SD Card 
1.  In the Arduino
®
 IDE, open the sample sketch [Cardinfo]. 
2.  Your VMA202 uses chipSelect 10 instead of chipSelect 4. Change line 36 in the sketch to: 
const int chipSelect = 10; 





