BLE Reader · Tracking Point · Mining & Tunneling

Tracking PointTP-1

A rugged BLE reader and industrial I/O controller in one. The Tracking Point anchors the 4MTracking network — scanning Personnel Tags and Asset Tags — while its isolated relay and digital I/O turn it into an alarm module and traffic reader. A dedicated firmware adds traffic-light control.

BLE Reader ESP32-S3 8× Relay Out 8× Digital In Ethernet / PoE CAN · RS485

4Mining Tracking Point — BLE Reader & I/O Controller

Powered by 4MTracking

The reader that anchors your network

Tracking Points scan BLE tags and feed real-time, last-known positions to the 4MTracking platform over Ethernet, Wi-Fi and MQTT — while driving alarms and traffic logic at the edge.

4Mining · Tracking Point BLE reader · alarm module · traffic reader · www.4-mining.com

Technical Specifications

Hardware platform — model 4-M POE-ETH-8DI-8RO-C (ESP32-S3).

Specification	Value
Processing
Microcontroller	ESP32-S3, Xtensa® LX7 dual-core
Clock	Up to 240 MHz
Wireless (BLE Reader)
Bluetooth	Bluetooth 5.0 + BLE (tag scanning)
Wi-Fi	2.4 GHz 802.11 b/g/n
Ethernet
Controller	W5500, 10/100 Mbps (SPI)
PoE (optional)	IEEE 802.3af, built-in module
Serial / Fieldbus
CAN Bus	Isolated, auto direction control
RS485	Isolated (model dependent)
Protection	TVS surge · ESD · optional 120 Ω term.

Specification	Value
Digital Inputs
Channels	8 × isolated
Input range	5 V – 36 V
Modes	Passive · Active NPN · Active PNP
Isolation	Bi-directional optocoupler
Relay Outputs
Channels	8 × industrial relay
Contact rating	≤10 A @ 250 VAC · ≤10 A @ 30 VDC
Configuration	1 NO + 1 NC · DI linkage control
Power · Storage · Build
Power input	USB-C · 7–36 V DC (isolated) · PoE opt.
Timing / storage	RTC · MicroSD (TF) slot
Indicators	Programmable RGB LED · buzzer
Enclosure	DIN-rail ABS, compact

4Mining · Tracking Point Isolated I/O · industrial-grade · www.4-mining.com

Functions & Firmware

One hardware platform — multiple roles for mining, tunneling and traffic.

Standard firmware — three roles combined in one device

Tracking Point

BLE reader / fixed anchor: scans Personnel Tags, Asset Tags and other BLE tags and feeds real-time positions to the 4MTracking platform over Ethernet, Wi-Fi and MQTT.

Alarm Module

8 relay outputs and 8 isolated inputs drive sirens, strobes and signals — triggered by SOS, zone breach or sensor events at the edge.

Traffic Reader

Reads vehicle and access BLE tags for traffic monitoring and access control at gates, intersections and tunnel portals.

Optional firmware — separate image

Traffic Light Control

A dedicated alternative firmware turns the relay outputs into a traffic-light controller for tunnel and mine traffic management — flashing as a separate firmware image onto the same hardware.

Applications

Underground Mining & Tunneling

BLE anchoring, worker alarms and tunnel traffic control on one device.

Access & Traffic Management

Vehicle reading, gate control and signal lights at portals and intersections.

Johannesburg, South Africa
+27 11 568 4404 · info@4-mining.com
www.4-mining.com

Hardware & software from a single source

ESP32-S3PoE 802.3af DIN-Rail