Author: Cont
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Discovery 3 CAN Bus Sniffing, Part 3: When OBD-II Frames Stay at Zero
Part 3 of the Discovery 3 CAN bus sniffing series: what to check when USB works, diagnostic requests transmit, but no CAN frames arrive.
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Discovery 3 CAN Bus Sniffing, Part 2: LilyGO ESP32 CAN Board Setup
Part 2 of the Discovery 3 CAN bus sniffing series: getting the LilyGO CANbus ESP32 detected on Windows and ready for OBD-II testing.
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Discovery 3 CAN Bus Sniffing, Part 1: OBD Pins and Incorrect Wire Colours
Part 1 of the Discovery 3 CAN bus sniffing series: the vehicle OBD port was fine, but the DIY pigtail colour chart was wrong.
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How To Hook Up The New 4-Zone Wall Controller
Wire the TekOnline four-zone button wall controller for compatible low-voltage HVAC systems. Check the pinout, actuator requirements and installation guidance.
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4-Zone Wall Controller Faceplate Update: Working Toward a Cleaner Clipsal 2000 Series Style Look
We are developing a cleaner faceplate direction for the TekOnline 4-Zone Wall Controller, aiming for a more familiar wall look inspired by the Clipsal 2000 Series style while…
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4-Zone Wall Controller Compatibility List
Check whether the TekOnline 4-Zone Wall Controller is a likely replacement for your existing 4-zone wall controller, including the SZ-SW4, and see what details to send before ordering.
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Zone Control (7 Zones) – Open-Source ESPHome HVAC Controller
Historical overview of TekOnline seven-zone ESPHome control. Identify your board revision and find the current eight-zone V3 product and setup resources.
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Installer Perspective: Deploying Open HVAC Zone Control Without the Usual Pain
An installer-focused overview of open HVAC zone control. Review wiring, board revisions and commissioning requirements before planning an ESPHome retrofit.
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How We Built a 7-Zone HVAC Controller with ESPHome
Read the development story behind TekOnline’s original seven-zone ESPHome HVAC controller and find the current eight-zone product and setup resources.
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Open-Source HVAC Zoning vs Closed Systems: What Actually Matters
Compare open ESPHome HVAC zoning with closed controller ecosystems, including local control, firmware access and integration considerations.