ESP32 / SIM7600G / SD

Mission console built for field use

Live telemetry, cellular diagnostics, and GPS-aware messaging in a clean, mobile-first interface.

Wi-Fi Connecting

Last update --

GPS ping age --

SD host /www

GPS Waiting

LTE Waiting

RSSI --

APN -- · waiting for session

SIM --

CREG --

Attach --

DL / UL -- / --

Messaging

Template SMS

Send a formatted message with your name, contact number, and live location preview.

The message box below shows the exact template that will be sent, including current GPS location when available.

Sender name Sender contact number Alert message body Phone number Message preview (what will be sent)

Idle

Session logs

Loading logs...

Location

GPS and map

Live coordinates, fix quality, and a direct Google Maps link from the current GNSS solution.

Navigation

Open map

Current fix

Waiting for satellites...

GPS status Waiting

Coords

Altitude

Raw GNSS

Inbox

Received SMS

Read messages currently stored on the SIM7600G modem inbox.

SIM Inbox

Loading inbox...

Hardware

Modem diagnostics

Real-time SIM7600G signal quality, registration, and attachment status.

Live modem health

Signal Quality

RSSI: --

Registration

Packet Domain

Data Attach

SIM Status

Data Connected

IP: --

Interpreting the signals:

Signal Quality: Excellent (≥-85 dBm) → Good (≥-95) → Fair (≥-105) → Weak
Registration (CREG): 0=Not registered, 1=Home, 2=Searching, 5=Roaming
Packet Domain (CEREG): Same scale. LTE registration separate from voice.
Data Attach (CGATT): 0=Detached, 1=Attached. Must be 1 for data.
Slow NETLIGHT blink (15s+): Usually indicates mode active but idle. Check power supply (should be ≥4V @ 800mA capacity).

RF Interference Test

Disable GPS to check if it's interfering with LTE signal. Watch RSSI and registration before/after. If signal improves when GPS is off, RF interference is likely.

Ready

Developer

Developer interface

Learn about the project, reach the researcher, and review the design focus behind RESQLinkDrone.

Researcher profile

RESQLinkDrone is a field console built around ESP32, SIM7600G, GPS, SMS, and SD-hosted web tools. It was designed to support practical modem control, telemetry, and location-aware messaging.