HALJIA#ad - This unit have nokia 5110 LCD interface and nRF24L01 interface. Add i2c communication interface, easy connect with I2C devices. Suitable for all version of arduino Main board, UNO, 2009, mega 1280, mega 2560.
HALJIA#ad - Easy to communicate with any microcontroller. Its small size and compact design make this switch more convenient in module alarm/safety device operation, access control, and device control.
Keyboard matrix allows you to quickly add controls to your electronic project. This module is compatibile with microcontrollers such as AVR and PIC which makes it a perfect choice for your Arduino applications and projects.
It provides 0 to 9 numbers, as well as standard stars * and hash# symbols. The 4x3 -12 switch matrix keyboard module is made by high quality plastic and metal material which is very durable and reliable. Direct replacement, a simple plug and play with no wire splicing.
Hyuduo#ad - We strive to provide you with high quality and convenient service. The capacitive touch sensor keyboard has four mounting holes and can be used as an input system instead of traditional buttons.
You are welcome to contact us if you have any problem about our product, we will give you a satisfactory reply. The mpr121 capacitive keyboard uses the MPR121 and 12 touch panels to give you a simple "keyboard" with I2C output.
The capacitive touch keyboard has 12 buttons for easy control and a perfect replacement for traditional keyboards. The sensor keyboard is made of high-quality materials, not easy to break, good quality and stable performance.
AZDelivery#ad - Az-delivery matrix array 4 x 4 membrane switch 16 Keys Keypad Keyboard is suitable to use with both 3. 3v and 5V controllers. Dimensions of the az-delivery matrix array 4 x 4 membrane Switch 16 Keys Keypad Keyboard are approximately LxWxH: 69 mm x 77 mm x 1 mm.
We provide an array of application examples, full installation guides and libraries. Az-delivery matrix array 4 x 4 membrane switch 16 Keys Keypad Keyboard offers ultra-thin design, adhesive backing, easy interface to any microcontroller and excellent price/performance ratio.
This product includes an e-book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. These handy matrix array keypads have dielectric strength of 250 VRMS 50 ~ 60 Hz 1 min.
FREENOVE#ad - No paper tutorial. New model -> integrate the conversion circuit on the screen. I2c address -> 0x3f for 8574at chip; 0x27 for 8574t and blank chip. Tutorial and code -> the download link can be found on the product box.
Lcd 1602 -> can display 2 lines of characters, 16 for each. Demo project -> for mainstream models of arduino / ESP32 / Raspberry Pi Pico / Raspberry Pi / ESP8266. Refer to "about_I2C_Address. Pdf" in downloaded file for details.
AZDelivery#ad - We provide an array of application examples, full installation guides and libraries. Thanks to its small size 7cm x 7cm x 1cm, this handy 16-switch module is an ideal choice for applications such as: alarm/security equipment, access control, and compact design, equipment control.
Az-delivery 4x4 matrix array 16-switch keypad allows easy communication and scanning through the pad with only 8 microcontroller pins. Az-delivery matrix array keyboard is a 4x4 key-type Module with contact resistance less than 100ohm, which makes it comfortable and soft to touch.
This product includes an e-book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. This module is compatibile with microcontrollers such as AVR and PIC which makes it a perfect choice for your applications and projects.
Paradisetronic.com#ad - Including irq - the interrupt output IRQ is triggered when the button is pressed. Easy control - the mpr121 chipset enables simple control via I2C bus, so that it can be easily queried using Arduino or Raspberry Pi, for example.
Proven quality - if, despite our quality controls, you have reason to complain, we at Paradisetronic will help you quickly and easily.
The i2c bus therefore does not have to be queried permanently. 12 capacitive touch fields - arranged in a 3x4 matrix, there are a total of 12 touch sensor fields on the board for free programming. That means the remaining GPIOs of your microcontroller remain free. Only 2 pins required - the control via i2c only requires two pins to query all 12 buttons.
Included is a high quality, usa-made pcb and all the components buttons, header etc! - Kit does not come with a 16x2 LCD. Uses only the I2C pin. This kit makes it easy to use a 16x2 Character LCD on your next project.