✍ The shield provides a simple solution for a universal I/O (input/output) for the Arduino boards, including the Uno, Leonardo, and Mega2560. It features many useful subsections, including 7-segment displays, pushbuttons, LEDs, and more.

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▼ Features
4 x LEDs
3 x pushbuttons
1 x reset button
1 x piezo-buzzer
1 x LED display module (four-digit, seven-segment)
2 x serial LED display driver ICs(74HC595)
1 x multi-turn trim pot (10K)
1 x port for DS18B20 temperature sensor
1 x port for TSOP1838 infrared receiver module
1 x APC220 wireless module interface (serial/UART interface)

▼ Pins occupied
Four LEDs are bonded with digital pins D10–D13
Three pushbuttons are routed to analog pins A1–A3
Digital (PWM) pin D3 drives the piezo-buzzer through a PNP transistor
Analog pin A0 takes care of the 10K trimpot
Analog pin A4 is for the temperature sensor
Digital pin D2 is for the infrared receiver module
Digital pins D4, D7, and D8 handle the LED display.

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▼ Package included
1 x Arduino Multifunction Arduino Shield

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