The 12 Best I2C Shields (2022 reviews)

The Sunfounder I2C Shield gives the top-tier shields a run for their money by offering flagship specs at a much more affordable price. The sunfounder i2c shield allows for easy setup, is precise, it is programmable and has a good design. You can adjust the contrast with the potentiometer at its back. Also, it is elegant, It is great with a nice price and has an excellent design.

The shield is designed for open source, is used for good benefits. It does the job and has a nice design. Most importantly, the sunfounder i2c shield makes for fairly easy setup, has a pin header, It is good for good quality and has a very good design.

Almost all buyers found that the shield was good value for the money. In addition, a few say that the shield is easy to get running on arduino using wire.h and liquidcrystal_i2c.h libraries. Also, a few strongly agree that this display works well with the i2c interface connected to an arduino.

Customers also found that its wise to buy a i2c expansion board, along with this shield.

Top Customer Quotes:

The manufacturer provides a library for this display on their wiki.
This is fully adjustable from the pot dimmer on the back.
This is great value for a 20x4 i2c display.
This will display any normal keyboard character and up to 8 custom characters.

Best For Raspberry Pi Boards: Uctronics I2C Shield

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The Uctronics I2C Shield is capable of outshining several other shields featured in this list in overall features for the price point. The uctronics i2c shield is very fragile, it looks good and has a compact design. There is also a simple switch-cap charge pump that turns 5v into a low voltage drive for the oleds, making this module the easiest way to get an oled into your project. This oled display module is small, only 0.96 ” diagonal. It is made of 128x64 individual yellow and blue oled pixels. Each one is turned on or off by the controller chip.

The shield is neat, it can expand for more memory and has a low power design. Moreover, it comes with a power switch, straight forward, It works perfectly and has a neat design. Lastly, the uctronics i2c shield has super high contrast, bright and crisp dots, even tiny fonts are quite readable.

Almost all customers agree that the shield is perfect for making a small game console. And, they strongly agree that the shield reduces the sketch and global memory size. Moreover, a few strongly agree that the electronics display has a top portion in yellow color and the bottom portion in blue. To sum up, the tone of buyers is very positive and we believe that the shield suits the purpose.

Few customers got i2c expansion board, along with the shield.

Top Customer Quotes:

The elegoo board you use is fully compatible with the official ones.
This is very simple to use and works quite well.
This is very colorful due to the old technology.
This oled module is specifically created for low - power iot solutions.

Best With All Current Development Boards: Geeekpi I2C Shield

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate shield. The Geeekpi I2C Shield is exactly that - it's a simple shield that hits all the right notes. The geeekpi i2c shield is also necessary to adjust the contrast. Manufacturer says: To get more information, please check our wiki, wiki.52pi.com/index.php?title=z-0234. The principle of the lcd1602 liquid crystal display is to use the physical characteristics of the liquid crystal to control the display area by voltage, that is, the graphic can be displayed.

The shield comes with a potentiometer used to adjust the backlight (color: blue) and contrast. In addition, it can be operated as long as it supports the i2c development board. Lastly, the geeekpi i2c shield is used to display real time clock, temperature, humidity etc.

Almost all buyers found that the shield is great with raspberry Pi. And, they also found that the shield is perfect for a simple menu or readout. Moreover, a few also found that the shield can be driven by any mcu which can support the i2c protocol. In conclusion, many buyers have used the shield for more than a few months without letup, and it shows no sign of giving up.

Customers say that buying a i2c expansion board, with this shield made their life much easier.

Top Customer Quotes:

This has a pin header, works perfectly and it is good for space.
This is affordable and it is highly recommended.
This is used to interconnect with the i2c interface easily.
This is great for arduino timer applications.

Best For Real Time Clock: Jansane I2C Shield

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The features department is where the Jansane i2c shield truly manages to shine. The Jansane i2c shield has good build quality, is made with good customer service and it is extremely easy. Before you upload the code to the control board, please download the liquidcrystal_i2c library. Moreover, it is also necessary to adjust the contrast.

The shield can be used in copiers, fax machines, laser printers, industrial test equipment and networking equipment such as routers and storage devices. And, the shield is expensive and it worked fine. Above all, the Jansane i2c shield is nice to view and it is friendly.

Almost all customers quickly discovered that the shield came with no directions and also came with and without the i2c "backpack. In addition, they say that the shield is done by adjusting the potentiometer, which is a blue box on the back of the lcd with a screw in it. Further, they also found that the shield is a great display to use with arduino or other micro controllers supporting i2c. Overall, most buyers agree that the shield suits them best, and no one questions it.

Customers also discovered that its wise to buy a i2c expansion board, along with this shield.

Top Customer Quotes:

This interfaces with raspberry-pi and it worked perfectly.
This is practical, clean, effective, and its construction is firm and solid for any application.
This is used for connecting dupont line or IIC dedicated cable.
1602 lcd screen can display 2-lines x 16.

Best With Ethernet: Adafruit I2C Shield

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Next on the list, we've got yet another shield that manages to win our hearts. It's the Adafruit I2C Shield and it's widely considered as one of the most convenient shields you can buy. In addition, it is white, is extremely easy, it is used for great products and has a great design. A spot to place a big capacitor on the v+ line (in case you need it) 220 ohm series resistors on all the output lines to protect them, and to make driving leds without a lot of extra space remaining. Lastly, the adafruit i2c shield can ask for good quality, It is compliant and has a nice design.

Almost all customers quickly discovered that the shield is easy to use, has made microcontroller+servo projects a breeze. Further, a few strongly agree that this kit is disassembled and needs to be soldered. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Customers say that getting a i2c expansion board, along with shield is useful.

Top Customer Quotes:

Adjustable frequency pwm up to about 1.6 khz.
Well designed and electrically protected, very well - made circuit board, and very good documentation.
This is a very powerful shield for controlling servos with an arduino.

Best For Micro Controllers: Solu I2C Shield

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Next on the list, we've got yet another shield that manages to win our hearts. It's the Solu I2C Shield and it's widely considered as the shield that has the most suitable features. The solu i2cshield is good for good quality, is ultrasonic and it is white. The manufacturer says: What we pursue is your satisfication of our service, not just for our goods. And, it works nicely and it is very readable.

The shield is easy to program and it worked fine. Lastly, the solu i2c shield has straightened the pins, works perfectly and it is really nice.

Most buyers agree that the shield is easy to use and program but the pins very bent. And, they also found that the shield is compatible with the arduino ide 1.0. And, they strongly agree that the display to be backlit the pins marked led need to be jumpered. So, customers were very happy to recommend it to friends and would-be buyers.

Customers found that getting a i2c expansion board, with this shield made their life much easier.

Top Customer Quotes:

Based on the popular hd44780 controller.
This is a great display for micro controllers.
The pins connecting the interface board and the lcd module were straight.
Works for with arduino and other micro-controllers.

Best For Power Supply: Keyestudio I2C Shield

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Next on the list, we've got yet another shield that manages to win our hearts. It's the Keyestudio I2C Shield and it's widely considered as the shield that has the most suitable features. Further, this worked like a charm and it is great for power supply. Use i2c input, just occupy the a4 and a5 interface on the control board. Lastly, the keyestudio i2c shield can directly stack on the controller r3 board and can drive up to 16 servos.

Most buyers found that the shield is designed with huge potential. So, customers were eager to recommend it to friends and families.

Why We Like This:

Use i2c input, just occupy the a4 and a5 interface on the control board.
Servo power supply independent v + input up to 6v.
Good investment for the long term.

Best With Battery: Serial Wombat I2C Shield

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The Serial Wombat I2C Shield's material feels more premium than its price would suggest. The serial wombat i2c shield is designed for open source and it is handy. This is an ideal way to add an additional debug output if your system is already using its uart for other purposes. In addition, it is accessible and it is very versatile.

The shield allows upgrades, side-grades to other serial wombat firmware that uses the same microcontroller, changing of i2c addresses, or uploading of user-customized firmware. Finally, the serial wombat i2c shield allows monitoring of the supply voltage and conversion of a/d counts into voltage measurements.

Almost all buyers opine that the shield is designed to add additional i/o to a system that is already being controlled by an i2c bus. In addition, they also found that the shield features in future projects and it is great with arduino rp2040 connect. As a result, buyers were very happy to recommend it to friends and families.

Customers also discovered that its wise to buy a i2c expansion board and i2c gpio expander board, along with this shield.

Why We Like This:

This is a sample application and also has an optionally-enabled internal pull-up.
Your sketch can do this as often or slowly as you like.
This is smart, is very handy and it is great for higher resolution.
Easily add a few more i/o or a/d channels to your project through i2c.

Compatible With Mega: Frienda I2C Shield

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The Frienda I2C Shield's material feels more premium than its price would suggest. The frienda i2cshield can call for product information, It is made for high quality and has a self-luminous design. The blue and yellow, 0.96 inch oled module is designed to display graphic information and text information directly on your microcontroller project. The oled display module is self - luminous, so that no backlight is required.

Most importantly, the frienda i2c shield is reliable and has a clean design.

Most buyers agree that the shield is called a128x64, It is actually a split display. And, a few also found that the shield works well with raspberry pico. And, a few say that the display driver itself has circuit - level documentation on digi - key. To sum up, buyers found this to be one of the best shields for daily purposes.

Customers discovered that getting a i2c gpio expander board, with this shield made their life much easier.

Top Customer Quotes:

This is used to re-assign vcc and gnd for the display.
This has created fonts, it is very happy and has an open design.
128x64 is very useful.. If starting with an arduino's start with this display... vcc.
This is an iic/ i2c interface, only needs 2 i/o ports.

Best With Switch: Sparkfun I2C Shield

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Sparkfun has been making great shields for years, thanks to a combination of clever design and appropriate materials. The Sparkfun I2C Shield is a jumper on the shield to set the ioref voltage for the logic shifting circuit. This reduces the amount of required pcb space, and polarized connections mean you can’t hook it up wrong. The qwiic shield for arduino nano comes with two, 15.

Lastly, the sparkfun i2c shield is designed for open source and has a hardware design.

"It can be plugged on top of the nano if you have installed female or passthrough headers, or you can plug the nano on top of the shield if the board has male headers. " - says, one customer. Therefore, customers were very happy to recommend it to friends and would-be buyers.

Customers found that getting a ph sensors to i2c, with this shield made their life much easier.

Why We Like This:

The manufacturer says: we're here to help you start something.
Good brand reputation.

Best For Delivery Time: Industrialmaker I2C Shield

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Best part: Industrialmaker I2C Shield costs comparatively low and it is available to ship in 24 hours. In addition, the shield is compatible with Raspberry faction b + b motherboard and Raspberry send motherboard. Make sure this fits by entering your model number. Most importantly, the industrialmaker i2c shield has developed country estimated delivery time and it is great for delivery time.

Customers also discovered that its wise to buy a i2c expansion board, along with this shield.

Why We Like This:

Good brand reputation.
One of the newcomers and featured product.

Best For Top Row: Songhe I2C Shield

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate shield. The Songhe I2C Shield is exactly that - it's a simple shield that hits all the right notes. The songhe i2c shield is perfect for a good deal and it is good for typical application. supports two interface types to access the target board. Moreover, the shield has led indicators, provides for external power and it can search for power supply. Above all, the songhe i2c shield has a pin header and it worked perfectly.

Most buyers quickly discovered that the shield works perfectly with yocto Linux, too. Moreover, they strongly agree that the shield is an i2c expansion of the port. In short, most buyers call the shield suits best, and no one questions it.

Customers discovered that buying a i2c expansion board and i2c gpio expander board, with this shield made their life much easier.

Why We Like This:

The i/o resources are in short supply and the mcu i/o expansion.
Lot of satisfied buyers.