The world of microcontrollers and portable microcomputers is constantly evolving. The establishment of the Italian company called Arduino was a true milestone. Today every enthusiast of programmable electronics has heard about Arduino. Arduino and Raspberry are the two most well-known and recommended brands of electronics producers. Arduino enjoys great user reviews due to the fact that it offers a lot of variety. First you need to buy the main Arduino printed circuit board (PCB). Then - you don't have to, but it's worth it! - buy Arduino Shields - special overlays with additional amenities. There are dozens of overlays that are used for various purposes. With their help you will build a running gear for the robot, equip the project with wireless communication (radio waves, Wi-Fi via Ethernet, Bluetooth), as well as components for further expansion. The latter include pin extenders, which are used in order to increase the technical parameters of the project!
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Arduino Shield - GPIO extenders
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Nano Screw Terminal Adapter - screw connectors - hat for Arduino Nano - Arduino ASX00037
Nano Screw Terminal Adapter is an overlay designed for the Arduino Nano series board, which allows for comprehensive prototyping without the need to solder the leads. The...
Index: ARD-22374
Index: ARD-22374
MCP23017 Expansion Board - 16 I/O - for Arduino and Raspberry Pi - Waveshare 15391
Expander of pins on the basis of the MCP23017 system, it extends the capabilities of the Arduino or Raspberry Pi with additional 16 pins of I/O. It communicates via I2C...
Index: WSR-13466
Index: WSR-13466
DFRobot Gravity - IO Expansion Shield for Arduino V7.1
Shield for Arduino, which extends the I/O pis capabilities. It has i.a. led out each pin with a pair for power supply, possibility to turn on the voltage converter of 3.3 V, a...
Index: DFR-02991
Index: DFR-02991
Relay Shield v3.0 is a high quality relay board for regulating large load currents compatible with Arduino / Seeeduino with built-in LED indicators and screw terminals....
Index: SEE-14131
Index: SEE-14131
Velleman VMA209 sensors LM35 + DS18B20 - multifunctional shield for Arduino
Shield for Arduino with 7 segment LED display 4 digits, 4 SMD LEDs, 3 independent buttons, buzzer, interfaces for sensors LM35 and DS18B20, interface IR receiver,...
Index: VEL-13897
Index: VEL-13897
Grove - Base Shield for Arduino Nano
Shield for Arduino Nano is a board fully compatible with Seeeduino Nano. It has 8 connectors, so it is possible to connect many devices, sensors, Grove displays using 4-pin...
Index: SEE-14994
Index: SEE-14994
DFRobot 4x Relay - Shield for Arduino v2.1
Overlay with four relays that can be controlled directly from Arduino via digital outputs. Additionally, there is a socket on the board to connect XBee wireless communication...
Index: DFR-02731
Index: DFR-02731
DFRobot ScrewShield V3 - screw connectors for Arduino
Included are two shields, leading out all the Arduino pins on the connectors to which you can connect the cable using the button (clip) without using a screwdriver.
Index: DFR-02989
Index: DFR-02989
Cytron PS2 with PS2 controller connector - Shield for Arduino
Shield for Arduino with connectors of the controller of the PS2 console. It communicates through UART interface. It supports wired and wireless controllers. The board has...
Index: CTN-13210
Index: CTN-13210
Sensor Shield V5.0 - Shield for Arduino
Arduino extension kit. It allows you to connect various devices like sensors, servos, buttons, potentiometers, relays etc. It has pins from Arduino board along with 5V and...
Index: MOD-03725
Index: MOD-03725
Grove - Base Shield v2 - Shield for Arduino
Shield for Arduino, which extends the capabilities I/O pins. Designed for modules and sensors from the Grove series. It has 4-pin connectors, and all the outputs known from...
Index: SEE-04440
Index: SEE-04440
Pi Shield - shield for Arduino
Shield for Arduino allows you to connect the Raspberry Hat boards to Arduino, for example Uno. It has a built-in logic levels Converter. The kit includes connectors for...
Index: ABE-11713
Index: ABE-11713
Proto Prototype Shield + mini Breadboard - Shield for Arduino
Shield for Arduino Uno Rev3 and derivatives allow you to create your own shields. It has led out all the connectors and two LEDs, and a button at the user's disposal. In...
Index: MOD-08225
Index: MOD-08225
USB-C Host Shield - hat for Arduino - MAX3421E - SparkFun DEV-21247
Module in the form of a shield for Arduino, which allows you to connect and operate any USB 2.0 device. USB-C Host Shield works with devices such as cameras, various types of...
Index: SPF-22824
Index: SPF-22824
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Velleman VMA201 Proto Shield + mini breadboard 170 holes - shield for Arduino
Shield for Arduino Uno Rev3 and derivatives, which allows you to create your own systems (shields). It has led out all the connectors and two LEDs, and a button at the user's...
Index: VEL-13015
Index: VEL-13015
DFRobot Mega Multi IO Shield For Arduino Mega / DUE
The board allows to connect 4 shield type addons to Arduino Mega 1280 / 2560 / ADK. Each shield uses different pins, so you can avoid conflicts that may occur when connecting...
Index: DFR-07183
Index: DFR-07183
Nano Expansion Adapter - Shield for Arduino Nano
System that facilitates the usage of Arduino Nano. It has led out all the pins in convenient 3-pin configurations along with Vcc and GND. On board can also be found pins for...
Index: MOD-08233
Index: MOD-08233
I/O Extension for DFRobot FireBeetle
The extension for the FireBeetle, which allows you to connect a larger number of digital pins with 10 pins of i/O and 5 analog pins. It communicates via the SPI, UART and I2C...
Index: DFR-09150
Index: DFR-09150
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Gravity - Screw Shield V2 - overlay with screw connectors for Arduino - DFRobot DFR0171
Gravity - Screw Shield V2 is a Shield overlay for Arduino that acts as a lead expander . It extends the Arduino with screw connectors, so you can attach wires to them for a...
Index: DFR-19900
Index: DFR-19900
ATSAMD09 Seesaw I2C - extension for Arduino and Raspberry Pi - Adafruit 3657
Seesaw ATSAMD09 is a universal framework transducer which expands the number of pins for microcontrollers or microcomputers with I2C interface. It extends the board with...
Index: ADA-10319
Index: ADA-10319
Gravity - IO Sensor Shield V2.4 - I/O Leads Extension for Arduino Mega - DFRobot DFR0165
Gravity - IO Sensor Shield is an I/O pinout extension in the form of an overlay for Arduino. It has 3 Xbee slots, 1 microSD slot, headers and leads for connecting extensions....
Index: DFR-19897
Index: DFR-19897
Qwiic - Shield for Arduino - SparkFun DEV-14352
Shield for Arduino facilitating the connection of modules of SparkFun via connectors Qwiic. The shield connects the I2C bus Arduino with connectors Qwiic. As long as the...
Index: SPF-10103
Index: SPF-10103
Arduino Proto Shield Uno Rev3 TSX00083
Shield for the Arduino Uno that allows you to create your own systems (shields). The model is suitable for the latest versions of the family of Arduino Uno Rev3. It has a...
Index: ARD-12952
Index: ARD-12952
Mux Shield II GPIO expander for Arduino - SparkFun DEV-11723
Shield for Arduino that allows you to increase the number of pins up to 48 pins that can operate as digital inputs/outputs and analog inputs. Board moves the connectors on its...
Index: SPF-03398
Index: SPF-03398
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See also
What is an extender?
The possibilities of versatile use of popular Arduino systems are largely due to their modular design. The microcomputer programmer starts designing the system by selecting the main unit (main module) equipped with a control microprocessor, which, depending on the required functions and needs, retrofits with external accessories and expansion modules.
When creating larger constructions, you will need to purchase additional modules. They will increase the voltage resistance of the device, they will be a convenient platform for connecting more and more subsequent modules.
The most common extension module of the Arduino Shield is the pin expander. It is a module in the form of a printed circuit board or electronic circuit connected to the mainboard pins. The connection between the Arduino motherboard also depends on the type of Arduino Shield overlay, UART, SPI or I2C communication buses are often used.
Arduino expanders – one of the biggest extensions you can imagine
Arduino Shield expander is an extension of possibilities in Arduino systems. Thanks to its diversity, it will make it easier for you to design and adapt your microcomputer to your needs.
The simplest expander for Arduino is a board equipped with screw connectors. This design makes connecting wires to the main unit's inputs and outputs (motherboard) much easier. The connection strength is also greater.
The screw connection module integrates with the main unit through the pins. If you want to increase the current efficiency of the outputs, a module with relays can be helpful, which you can control devices with supply voltage up to 250 VAC and switching currents up to 15 A. For Arduino applications in the area of measurements, Arduino Shield equipped with clamp and screw connectors is available. Then you can easily connect sensors to such equipment - e.g. temperature, humidity or pressure sensors, as well as resistors for calibrating the measuring channel.
On the technical level, interface handling deserves attention. The Arduino pin expander can also support many interfaces such as SPI (LCD, LED display modules), IIC (ICD display modules, I / O modules), Micro SD, SD, TLC (LED controller). As you can see - there are really many possibilities!
Expand your project or… create your very own Arduino Shield!
If you are a fan of robotics, use the Arduino expander to control drives with motors with 12 V output voltage and current efficiency even over 1 A. If you are building a larger project, use the Arduino expander to be able to install even more other Arduino covers (Arduino Shields) !
However, one of the most important advantages is that some products give you the opportunity to create an Arduino overlay for yourself (e.g. Proto Shield)! Do you have needs that go beyond the available Arduino Shield modules? No problem! Build your own expander. Adjust its options to your needs. Now no project will be limited!
In Botland store you will find pin expanders in the form of printed circuit boards equipped with all connectors for connecting them to the main unit. You can create your own Arduino Shield on the printed circuit board.