The Sensor Shield is a general purpose shield meant to ease up wiring of other boards or components into an Arduino Uno, Nano, Mega2560, Leonardo, Zero, Due, and other boards following the R3 PCB form factor.
An obvious application is when you have say 3 or more devices that require individual 5V and GND pins. Each pin of the Arduino from pin 0 up to 13 and analog pins A0 to A5 are broken out into male pin headers beside individual 5V and GND headers.
The 5V headers may be taken from the Arduino’s 5V pin (INT) or taken from an external power source supplied into the external power pin of the shield. This is useful when the current rating of the internal 5V regulator is not sufficient to power other 5V devices.
HEADERS AND FOOTPRINTS
Aside from Arduino power nd GPIO pins, the shield provides footprints for the following. The graphics showing the different headers maybe downloaded from here if it is unclear from above.
- TEM – useful for LM35/36 or DS18B20/DS18S20, this is routed to A0. Install 4.7K at R5 when using DS18x20.
- L1 and L2 – useful as a simple analog IR reflective sensor or for power LED (L1) and extra LED (L2). populate R6a nd R7 accordingly
- HWSER – adds extra connector for D0 and D1 (HW Serial) and power pins
- SWSER – adds extra connector for D2 and D3 (SW Serial, set these pins in code) and power pins
- US – useful for ultrasonic sensors like HC-SR04 . connector uses pins D4 and D5.
- 7 – allows one 6x6mm tactile push button to connect to pin 7 in one end and GND in the other end. Use internal pullup resistor in your code
- SPI – one extra set of the SPI pins
- I2C – 3 extra set of I2C pins with power
- NANO – headers that allow an Arduino Nano to use the shield isntead of an Uno/Mega or other large boards. Be mindful of the correct orientation as labled.
5V POWER SOURCE SELECTOR
The microjumper can be inserted either between the middle pin and the INT pin or the middle pin and the EXT pin.
If INT is selected, all green “V” pins connect to the 5V pin of the Arduino board
If EXT is selected, all green “V” pins connect to the External Power headers
The Sensor Shield is part of Layad Circuits’ Kimat series of rapid prototyping products.