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WHAT IS Arduino?
CABLES, WIRES and PINS
An easy way to connect many INPUT DEVICES and OUTPUT DEVICES to Arduino. Not just sensors!
SENSOR SHIELD VERSION 4:
SENSOR SHIELD Version 5 HERE
MEGA SENSOR SHIELD HERE
The Sensor Shield's purpose is make it easy to connect cables and devices to the correct Arduino pins. It is not an active device. It simply connects the Arduino pins to many connectors that are ready to use to connect to various devices like Servos and Sensors with simple cables.
(See more about CABLES here)
YourDuinoRoboRED: "Built-In Sensor Shield Connectors":
On the right is the
Arduino-compatible board. It has the 3-pin connectors similar to a Sensor Shield built-in.
YourDuinoRobo1: "Built-In Sensor Shield Connectors":
On the right is the
Arduino-compatible board. It has the 3-pin connectors similar to a Sensor Shield built-in. The top connector has 3 colors: Black=Gnd, Red=+5V, White=Signal. You will see that this matches the colors on the 3-pin cables. The bottom connector is for the Analog Inputs, and has Gnd - +5V - Signal in the other direction.
NOTE: Shown above is
Sensor Shield Version 4
which is commonly used.
SENSOR SHIELD VERSION 5:
Sensor Shield Version 5
, which is the same except 2 communications ports are provided to use Serial and I2C communications simultaneously.
NOTE: There is also a
Sensor Shield for the Arduino MEGA
which you can see here:
and at the bottom of this page.
Each Port has 3 pins which are connected to (Ground), (Vcc + 5 V) and (Signal). See the
labels above. Cables normally are color coded so you know the right way to plug them in:
White or Yellow
DIGITAL I/O PINS 0 to 13:
These are available in the rows outlined in red above. They connect with cables to Electronic Bricks and other INPUT DEVICES and OUTPUT DEVICES.
ANALOG INPUT PINS A0 to A5:a
These are available in the row outlined in white above, AND on the black "Latched" connectors labeled "Analog 0" to "Analog 5". They also connect with cables to Electronic Bricks and other INPUT DEVICES.
This connector can go to external Bricks or other devices that have more complex Communications Protocols to work with Arduino. Examples are GPS receivers, Ethernet interfaces, and other complex devices. These are 4-pin connectors.
Either SERIAL COMMUNICATIONS (COM) or "I squared C" (often written as I2C or IIC) are supported on V4. The two
blocks shown above are moved to select one or the other.
On V5 there are separate connectors for SERIAL and I2C Communications.
Other cables can connect, like these examples:
MEGA Sensor Shield (get)
The Arduino MEGA has many more I/O pins (54 Digital pins and 16 Analog pins)than a standard Arduino. This shield also has connectors specifically for some external devices like an SD Card, Radio communications (Bluetooth and others). It also has an option to power the "V" pins on all the Digital I/O 3-pin groups from an external power supply instead of the Arduino +5V. This is good for large numbers of servos etc. The "Analog" 3-pin groups still use the Arduino +5V which is better from an electrical noise perspective.
This version has two options of +5V supply to all the "V" pins:
Jumper on: +5 comes from the Arduino. Should be limited to about 300 ma
Jumper off: +5 (or other appropriate voltage) comes from an external supply connected to
the blue terminal strip. External power Ground must also be connected to the blue terminal strip.
Using an external supply allows more current than the Arduino or Mega can supply, such as current for control of many servos or relays, and other attached devices. Usually this is +5V because most external devices require it. It is possible to use +6 volts if ALL the attached devices are the same such as Servos with that rating.
Dedicated Connectors (pins left to right, top to bottom, per above picture)
ICSP: RST, D52/SCK, D50/MISO, GND, D51/MOSI, 5V
Bluetooth: 3V3, GND, D0/RX0, D1/TX0, GND, 5V
SD Card: D50/MISO, D52/SCK, D53/SS, D51/MOSI, 5V, GND
APC220 (Wireless): --, D19/RX1, D18/TX1, --, 5V, GND
URF01 (ultrasonic): 5V, D48, D49, GND
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