Your Camper.
Your Comfort.
Your Control.
Control your Truma heater from anywhere — via app, Telegram or MQTT. Plug & Play in 10 minutes.
Full Control. From Anywhere.
CampMatic works like a Truma iNet Box — but with WiFi or 4G, web app, Telegram bot, MQTT and many extras. The smart upgrade for your Truma heater.
Heating Control
Room heating & hot water control, set target temperature, choose energy mix and adjust fan mode — all via app.
Live Monitoring
Real-time room and water temperature. Target vs. actual comparison, heating status and WiFi signal strength at a glance.
Temperature History
48-hour chart with room and water temperature. Target and actual values compared with automatic updates.
Notifications
Email and Telegram — configurable per event. Target temperature reached, frost alert, heating on/off, box offline.
Telegram Bot
Control heating directly in chat. /status, /control, /set 22 — with push notifications and multi-user support.
Heating Scheduler
Schedule heating times to start automatically. Create daily and weekly plans — your camper is warm when you arrive.
Progressive Web App
Installable on any device. Dark mode, light mode, English and German. No app store required.
CampMatic App
Intuitive web app with live temperatures, heating control and 48h history.
Telegram Bot
Control heating and receive notifications — directly in Telegram chat.
Ready in 10 Minutes
No soldering, no crimping, no cable routing. Just plug in and start heating.
Connect Heater
Connect plug 1 to the Truma Combi heater (LinBUS socket).
Connect Control Panel
Connect plug 2 to the Truma CP Plus control panel.
Connect & Go
Place box in service compartment, connect via WiFi or 4G — done!
Place the box in a protected, dry area near the Truma heater — e.g. in the service compartment under the bench seat (VW Grand California) or a similar compartment.
Detailed installation & setup guideWiFi, 4G or local — you decide
Via WiFi
GC_HW01
Connect the WiFi box to any WiFi network — LTE router, smartphone hotspot, campsite WiFi or Starlink. Full access from anywhere in the world.
Via 4G Cellular
GC_HW_GSM01
The 4G variant connects directly via the cellular network — no WiFi needed. Works with any SIM card, compatible with all European mobile carriers.
Local Fallback AP
Both variants
No network? No problem. The box automatically creates its own WiFi network. Connect directly and control the heating locally.
Will it fit my camper?
CampMatic works in any vehicle with a compatible Truma heater and CP Plus control panel (C4+). Tested in VW Grand California 600/680 among others.
Truma Combi 4 (Diesel/Gas), Truma Combi 4E (Electric/Gas), Truma Combi 6 (Diesel/Gas), Truma Combi 6E (Electric/Gas), Truma Combi D 6 (Diesel), Truma Vario Heat (Gas).
Check in INIT menu: Settings → INIT → Version must start with C4.
Older protocol — data readable but no control possible. Upgrade to C4 available.
Uses a different communication method and is not supported.
CampMatic simulates an iNet Box. An original iNet Box must be removed first.
Truma® is a registered trademark of Truma Gerätetechnik GmbH & Co. KG. CampMatic is not an official Truma product and is not affiliated with Truma. Trademark references are used solely for compatibility purposes. Your Truma heater manufacturer warranty remains unaffected by the use of CampMatic.
Under the Hood
For Pros: Your Own MQTT Server
CampMatic communicates via MQTT. Connect the box to your own MQTT server and integrate it into Home Assistant, ioBroker or Node-RED. Customise the firmware at any time.
What Our Users Say
"Brilliantly simple! Installation really took just 10 minutes. Now I pre-heat my Grand California before arriving at the campsite."
"The Telegram bot is amazing. My wife now also controls the heating — right from the chat. And the frost alert already saved us once."
"As a Home Assistant user, this is fantastic: MQTT integration works perfectly. Integrated the box into my smart home and built custom automations. Top product!"
"Works as described. Plug in, connect WiFi, done."
"We spent a week in the Alps at -12°C. Heated the GC remotely every morning before getting up. Absolute must-have for winter camping."
"Solid product. Clean build quality, good documentation."
"Does what it should. Temperature history is a nice bonus. Looking forward to the GSM version."
"I'm not technical at all and managed the installation myself. The app is super intuitive. Best camper upgrade I've made."
"Replaced my Truma iNet Box with this. Way better — faster, more reliable, and the Telegram notifications are brilliant."
"Top!"
"ioBroker integration running perfectly. OTA updates are a plus. This is how IoT products should work."
"The scheduling feature is exactly what we needed. Heating starts automatically before we arrive on Friday evenings."
"Had a question about the CP Plus firmware — support replied within an hour. Great product, great service."
"Works perfectly with my phone hotspot. Turn on hotspot, CampMatic connects automatically. Super easy."
Ready for Smart Heating?
Everything you need — in one box.
GC_HW01 — WiFi
WiFi Truma Combi Controller
Connects via your WiFi network or smartphone hotspot.
GC_HW_GSM01 — 4G
4G Cellular Truma Combi Controller
Total freedom — no WiFi needed. Works with any SIM card over the 4G cellular network.
Questions? info@campmatic.de