Local machine page
Open the gateway from a phone or laptop on site to check live values, Wi-Fi state, and machine status without waiting on a cloud dashboard.
Generic Modbus monitoring for field teams
Fast machine telemetry, without the mess.
MojoScale turns Modbus equipment into practical live telemetry: built-in support for common machines like gensets, custom profiles for everything else, and alerts your team can act on without digging through a cabinet.
Any Modbus machine
Start with gensets, then add pumps, meters, chillers, VFDs, and site equipment.
Phone-ready alerts
Send status changes, alarms, and updates to the people who need them.
Multi-site view
Monitor machines across sites from one simple console.
Built for real equipment
One connector for the machines already sitting in the field.
The gateway reads Modbus data, keeps a local web interface available on site, and sends telemetry upstream when remote monitoring is useful. Gensets are the clearest starting point, but the same profile system can describe motors, pumps, chillers, meters, and other Modbus devices.
Built-in and custom profiles
Use built-in profiles for common controllers, especially gensets, or clone a profile and define the exact Modbus registers, units, enums, and alarms your device needs.
Updates and alerts
Send machine updates to the server and surface alerts on phones, so teams can see what changed before a truck is sent to the wrong site.
Service topology
The setup is simple enough to explain at the panel.
A machine controller talks over RS485 to a small gateway. The gateway hosts a local page for technicians, stores recent readings, and forwards data to the MojoScale server for dashboards, history, and alerts.
1
Controller to gateway
Read operating values from a Modbus controller using a selected device profile.
2
Gateway to local browser
Use the onboard webserver for status checks during service.
3
Remote layer for teams
Send values, alarms, and health updates to one console for multiple sites.
Local webserver view
Plain readings first, remote sync when available.
Online
Machine state
Running
Load
68%
Battery
13.7 V
Alarm
None
The first useful screen is deliberately boring: current values, connection state, and enough context to decide whether the machine needs attention.
No hardware lock-in
Use cheap, replaceable industrial boards.
MojoScale is designed around commodity hardware instead of proprietary gateways. The target class is ESP32 with RS485 for Modbus controllers, with ESP32-S3 RS485/CAN boards as a natural next step.
RS485 Modbus
Connect to controllers, meters, drives, and field modules.
Built-in profiles
Start fast with supported machines, especially common genset controllers.
USB-C flashing
Provision firmware, Wi-Fi, access point, and profile settings from the browser workflow.
Phone and site console
Route telemetry toward alerts, summaries, and multi-site monitoring.
The goal is simple: connect machines quickly, keep local access available, and make remote monitoring useful without adding mystery hardware.
Provisioning flow
Pick a profile, flash the gateway, watch the machine.
The workflow is meant for technicians, not software teams. Choose a built-in profile or a custom Modbus profile, flash the generated app, then verify readings locally and remotely.
01
Connect over USB
Use browser serial to identify the chip and load the matching firmware.
02
Choose the profile
Use a built-in machine profile or define the Modbus metrics, units, and alarms yourself.
03
Read the machine
Poll values over RS485, keep recent readings cached, and show them on the local webserver.
04
Send updates
Forward telemetry and alerts so phones and the site console can show what needs attention.
For practical teams
Monitor more sites without making the system weird.
- Use one Modbus connector pattern across different machines and sites.
- Send alerts and health updates to phones instead of waiting for manual checks.
- Keep local readings available even when internet access is weak.
- Clone built-in profiles, adjust metrics, and grow coverage as new equipment shows up.