DISCOVERY SERIES INTRODUCTION
The Nextion Discovery Series MCU clock speed is 64 MHz which is more powerful than the Basic Series. There are 2.4”, 2.8“, 3.5” HMI display size options for your choice.
Compared with Basic Series, the Discovery Series has a better MCU performance, with the new image compression technique, the Discovery Series allows more pictures in the same amount of flash compared to Basic and Enhanced models. The operating current of deep sleep mode is as low as 0.25mA which makes the Discovery Series displays more suitable for battery-powered projects.
You can develop the HMI GUI project via the free Nextion Editor software, the easy Drag-and-Drop components and simple ASCII text-based instructions will dramatically reduce your HMI project development workloads.
The Nextion solution is the best balance HMI solution between cost and benefit with a low and decreased learning curve.
Note: Due to the global impact of COVID-19 outbreak since 2020, most of the key electronics component prices have climbed significantly, Nextion team developed new cost-effective HMI series products at a reasonable cost, that’s why the Discovery series comes.
DISCOVERY SERIES FEATURES
– 3 screen size options 2.4”, 2.8” and 3.5”
– TFT RGB 65K resistive touchscreen
– Onboard 64Mhz processor and memory
– XH2.54 4P (+5V, TX, RX, GND) TTL serial interface
– 4/16 MB memory for HMI project
– 1% interval adjustable brightness
– CE and RoHS Compliant
NEXTION EDITOR SOFTWARE
– Free and Easy-to-Use Nextion HMI software
– ASCII text based instructions over serial
– Assignable attribute value components at runtime
– Drag-and-Drop components for GUI design and interaction
– Built-in debugger for HMI project simulation
– User Event Code pane for GUI interaction and peripheral MCU communication
NEXTION DISCOVERY HMI DISPLAY
Notes: Nextion product numbering rules , eg. NX3224F024
NX – Nextion
32 – Horizontal resolution: 32-320 40-400 48-480 80-800 10-1024
24 – Vertical resolution: 24-240 27-272 48-480 60-600
F – Series model: T=Basic series, F=Discovery series, K=Enhanced series, P=Intelligent series
024- Display size: ”024″ means 2.4″
All Discovery Series products are resistive touch panel type
ACCESSORIES
NEXTION MIDI I/O INTERFACE
Two 4-pin XH connectors for 5V power supply, TX, RX and GND allow this interface to be easily daisy-chained between either a power supply / USB to TTL serial adapter like the Nextion Foca Max, or any MCU (Arduino, etc.) on one side (J1) and a Nextion HMI display on the other side (J2). The on-board switch SW1 allows to select between 2 modes:
* PRGM: RX + TX signals are directly routed from J1 to J2 which allows to program the device on J2 by the device on J1 while the MIDI interface is idle.
* MIDI I/O: RX + TX signals from the device on J2 are converted and linked to the MIDI IN and MIDI OUT 5-pin DIN sockets.
NEXTION MICRO SD EXTENDER
1. Feel hard to reach the micro SD card slot?
2. Have to disassemble the product enclosure for the HMI project update?
3. Other extension tools are not working properly?
The Nextion Micro SD card extender helps you to access the SD card slot of the Nextion HMI display more conveniently. It supports the FAT32 Micro SD card as well as all series of Nextion HMI displays compatibilities.
NEXTION BOX SPEAKER FOR INTELLIGENT SERIES AUDIO PLAY
The BOX speaker is for the use of 4.3″, 5.0″, 7.0″, 10.1″ intelligent series HMI display without enclosure.
Input Power：1.5W
Frequency Range: 100Hz-3KHz
Connector：1.25mm pitch 2-pin female connector (1.25T-2-2A)
Wire Length: 250mm
Size: 31*28*14.8mm
FOCA MAX- USB TO TTL CONVERTER BOARD
Foca Max is a USB to TTL serial converter board with 5.5V2A output. it integrates a high power and energy-efficient DC-DC chip of TPS54331 for a wide voltage input with small voltage ripple. For USB to TTL conversion, the Foca Max can be power supplied by USB only or USB together with external DC 8-26V, The USB and external DC power supplies are isolated by using a diode (SS34) to avoid the current backflowed between them.
Note: as for the Nextion HMI display size less than 4.3”, you can only use the USB for power supply, size large than 4.3”, a external DC 8-26V for power supply is recommended.
EXPANSION BOARD FOR NEXTION DISPLAY I/O EXTENDED
The first expansion board for Nextion Enhanced and Intelligent HMI displays.
– for use with any of the 2.4″, 2.8″, 3.2″, 3.5″, 4.3″, 5.0″, 7.0″ Enhanced and Intelligent models.
Supports the Enhanced and Intelligent Nextion’s 8 Digital/PWM GPIOs
The board includes 6 buttons, 1 LED, 1 Piezo buzzer, and 0.1″/2.54mm breakout:Esc (IO 0),
Enter (IO 1), Left (IO 5), Right (IO 2), Up (IO 4) and Down (IO 3)LED (IO 6) and small PWM Piezo buzzer (IO 7).
NEXTION IO ADAPTER
The Nextion IO Adapter is made specially to work with Nextion Enhanced and Intelligent HMI Display Series
– for use with any of the 2.4″, 2.8″, 3.2″, 3.5″, 4.3″, 5.0″, 7.0″, 10.1″ Enhanced and Intelligent models.
This small board breaks out the Nextion’s GPIOs to 0.1 inch /2.54 mm headers,allowing users to conveniently connect external devices to the Nextion’s Digital/PWM GPIOs.