This shield, which can be coupled with Arduino Uno and Arduino Mega has been designed to connect between 1 to 4 lambda modules and make data collection on an SD card, having a real time clock to know the time in which each measurement was made.

This Shield includes:

• SD card reader writer.

• 1x4 connector for a LCD display with I2C communication.

• RTC DS3231, Real time clock.

• 4 Connections 2x6, for lambda modules 01M11V00 and 01M21V00.

• 4 pushbottons, can be used for calibration, and to control the recording on the SD card.

Note: If you use all the features of this board you must use an Arduino Mega, because Arduino Uno is left with insufficient memory.