NEO-Edge40 Hardware

This page identifies the hardware blocks on the NEO-Edge40 Rev. 1.0 mainboard. If you are new to the product, start with the NEO-Edge40 Overview.

Development status: The board-level information below describes Rev. 1.0. The LCD, enclosure, output ratings, analog accuracy, isolation ratings, connector pinouts, and certification-related values are not final production specifications unless explicitly confirmed.

Hardware map

Area	Hardware	Purpose
Main control	KORLINX NX40 module	BLE / Zigbee communication, edge processing, and control logic
Cellular expansion	KSP-N51U or KSP-N51U-M.2	Optional LTE-M / NB-IoT communication
Wired communication	RJ45, RS-485, and CAN	Connects LAN systems, industrial devices, and controllers
Field inputs	Analog and digital input connectors	Receives sensor and contact signals
Field outputs	Relay, DC, and analog output connectors	Controls connected field equipment
Development	USB-C, SWD, GPIO, and I²C	Firmware, debugging, and peripheral expansion
Onboard sensors	BMI323 and SHTC3	Motion and temperature/humidity sensing
Local interface	Button and LCD connector	Local input and planned status display
Power	DC power jack	Main board power input

Main controller and wireless

Item	Specification
Module	KORLINX NX40
MCU	Nordic Semiconductor nRF52840, Arm Cortex-M4F at 64 MHz
Memory	1 MB flash and 256 KB RAM
Wireless role	BLE and Zigbee data acquisition and control
Development environment	Arduino IDE with the NX40 board package and libraries

The NX40 module handles wireless communications, field-data processing, protocol conversion, and I/O control.

Communication interfaces

Interface	Board implementation	Typical use
Ethernet	10/100 Ethernet through an RJ45 port and W5500 controller	LAN, PC, local server, or gateway uplink
RS-485	One isolated channel	Industrial equipment and protocols such as Modbus RTU
CAN	One channel	CAN-based equipment or controllers
Cellular	Expansion for KSP-N51U or KSP-N51U-M.2	LTE-M / NB-IoT connectivity at remote sites

Industrial I/O

I/O	Channels	Electrical function
Analog input	2	Selectable 4–20 mA or 0–5 V input
Analog output	2	4–20 mA current output circuit
Digital input	2	12 V opto-isolated input
Relay output	2	Contact output for switching external AC or DC loads
DC output	2	12 V transistor low-side output
GPIO	Project-dependent	Additional control or status signals

Potential loads include warning lights, pumps, fans, solenoid valves, auxiliary contactors, and industrial actuators. Verify electrical ratings and protection requirements before connecting a load.

Development and expansion

Interface	Purpose
USB-C	Board connection, serial communication, or firmware work, depending on firmware configuration
SWD	Firmware download and debugging
GPIO	External signal access and control
I²C	Sensor or peripheral expansion
4-pin header	Project-specific expansion

Front LCD and Local UI

NEO-Edge40 is planned to use a 1.06-inch front LCD for field installation and status checking.

The LCD can be used to display operating status, communication status, sensor values, output status, alarm diagnostics, and basic settings.

Screen Item	Displayed Content
Operating Status	Booting, Normal, Warning, Fault, Maintenance Mode
Communication Status	BLE device count, Zigbee node/network status, Ethernet link, RS-485/CAN, LTE registration and signal status
Measured Values	4–20 mA / 0–5 V converted values, temperature/humidity, internal sensor values
Output Status	Relay 1/2, DC Output 1/2, analog output, GPIO status
Alarm / Diagnostics	Sensor disconnection, out-of-range value, communication failure, power or equipment error codes
Settings	Device ID, communication parameters, thresholds, and basic network information

The LCD helps reduce the need to connect a laptop during installation or inspection.