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Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen

Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen
  • Availability: Directly available from warehouse in Eindhoven
  • SKU: 001697
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Complete HMI display with touchscreen. This screen can be controlled serially via a UART port and also has GPIO outputs that can be controlled via the Nextion software. The graphical interface of this module can also be programmed via an SD card or via the UART connection.
Decide for yourself what the screen looks like and program the interface with the touchscreen yourself. For examples and library's: see this Github.

The enhanced Nextion screens have a number of advantages over the normal Nextion screens:

  • Built-in RTC
  • Data can be saved on flash memory
  • GPIO pins
  • Larger flash memory
  • Faster CPU

Note: It is important that you use a good quality power supply, the display will get damaged quickly if the power supply provides a too low voltage.

See the following page for more information: Manufacturer page

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Tags: Embedded , Nextion , Nextion Enhanced NX3224K028 HMI Display 2.8 Inch 320x240 with Touchscreen , 001697 , Nextion , NX3224K028_011R , Display , Microcontroller (MCU) , Touchscreen , SD-card adapter , Battery holder , RTC , UART , PWM , GPIO

Specifications

General
Brand Nextion
Manufacturer model/SKU NX3224K028_011R
Norm conformity CE
RoHS
Minimum operating humidity [%R.H.] 10
Maximum operating humidity [%R.H.] 90
Minimum operating temperature [°C] -20
Maximum operating temperature [°C] 70
Features RTC
Display
Touchscreen
Battery holder
SD-card adapter
Microcontroller (MCU)
General physical appearance
Main color Black
Weight [g] 40
Dimension X [mm] 85
Dimension Y [mm] 50
Mounting options Mounting hole(s)
Diameter mounting hole(s) [mm] 3.5
Form factor Module (general)
General electrical properties
Minimum supply voltage [V DC] 4.8
Maximum supply voltage [V DC] 7
Minimum recommended supply current [A] 0.5
Indication average current consumption [mA] 65
(maximum brightness)
Minimum IO-pin input voltage [V] 2
Maximum IO-pin input voltage [V] 5
(UART)
3.3
(GPIO)
IO-pin output voltage [V] 3.3
Maximum IO-pin source current [mA] 1
Maximum IO-pin sink current [mA] 1
MCU
Maximum clock frequency [MHz] 48
Internal memory
SRAM [KB] 3.5
Flash memory [MB] 16
EEPROM [B] 1024
EEPROM type Built-in
Communication
Hardware interface(s) PWM
GPIO
UART
Number of IO-pins 8
Maximum available hardware PWM channels 4
Default baudrate 9600
Supported SD card size Micro SD
Supported SD File Format FAT32
Maximum supported SD capacity [GB] 32
Display
Type TFT
Screen diagonal [inch] 2.8
Number of pixels long side 320
Number of pixels short side 240
Display shape Rectangular
Pixel colors RGB
Maximum brightness [cd/m²] 180
Touchscreen
Touch type Resistive
Multi-touch support No
RTC
Back-up battery/capacitor Optional
Battery holder
Suitable battery form factor Button cell 1220
Suitable number of batteries 1
Connectors
Power supply connector(s) JST-XH (compatible) male
IO-connector(s) FFC female 10p 1.00mm
JST-XH (compatible) male
Package contents
Package contents 1x Display module
1x JST-XH 4p to DuPont cable
1x Micro USB to pin header adapter

Product FAQ

Can I power the device with an Arduino or other development board?

This is not possible in most cases. Most development boards (including Uno, Mega, NodeMCU, D1 Mini V3, etc.) have a diode between the 5V pin and the USB input that lowers the voltage. If the voltage from the 5V pin is lower than the required minimum of the device (see specifications) then it cannot function properly. In addition, many development boards can only provide little power. This can also cause it to malfunction. Using an insufficient power supply can even damage the device. Therefore, make sure that you use a suitable power supply and that it is connected correctly. It is advised to verify the supply voltage by measuring it.

The HMI is not functioning properly. What causes this?

In most cases, this is caused by insufficient power supply condition. Nextion HMIs require a good quality power supply. When the power supply provides too little current, has too low a voltage and/or generates too much ripple, several problems can arise, such as:

  • Flashing
  • Blurred screen
  • Freeze
  • Damage to the HMI

A good quality CE-approved power supply is required that can supply enough current and has the correct voltage. If necessary, measure the voltage directly on the Vcc and GND pins of the HMI.

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