Following and very excited to see the end result - will likely purchase as well. Great work so far.
100 Series NAV Delete – True Standalone HVAC Solution (OEM+)
- Thread starter Anarchy
- Start date
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- Thread starter
- #82
I voted OEM.
Momentum has picked up significantly.
Finishing out the last pieces of system robustness before fully closing this phase.
Current work is focused on:
CRC framing and counters (ensuring data integrity and sequencing)
Missed heartbeat detection (handling dropouts / fault conditions)
Capturing the last -N frames for debugging and traceability
Everything is behaving as expected. This layer is about making it reliable, diagnosable, and predictable under all conditions.
Once this is wrapped up, the focus shifts into documentation and hardware execution.
There’s a real fork in the road right now, this is the point in the project where decisions start getting locked in.
Input from people who would actually use this is valuable, so I’m genuinely interested in where people stand.
Would you rather have something with more features, or something simple that just never glitches? (Both is a valid answer too.)
What I mean by “features”:
Enhanced Display (OEM+)
Subtle LED / segment / dot-matrix display
Temp (actual + setpoint), fan speed, vent mode
Integrated cleanly into knobs or buttons
Smart Rotary Encoders
Precision detents
Push-to-select
Potential dynamic behavior (fine vs coarse adjustment)
Visual Status Indicators
Backlighting that actually communicates state
AC, recirc, defrost, fan intensity, etc.
How important is it to you that it feels like it could have come from the factory?
If you had full control of this project, what would you change first?
Momentum has picked up significantly.
Finishing out the last pieces of system robustness before fully closing this phase.
Current work is focused on:
CRC framing and counters (ensuring data integrity and sequencing)
Missed heartbeat detection (handling dropouts / fault conditions)
Capturing the last -N frames for debugging and traceability
Everything is behaving as expected. This layer is about making it reliable, diagnosable, and predictable under all conditions.
Once this is wrapped up, the focus shifts into documentation and hardware execution.
There’s a real fork in the road right now, this is the point in the project where decisions start getting locked in.
Input from people who would actually use this is valuable, so I’m genuinely interested in where people stand.
Would you rather have something with more features, or something simple that just never glitches? (Both is a valid answer too.)
What I mean by “features”:
Enhanced Display (OEM+)
Subtle LED / segment / dot-matrix display
Temp (actual + setpoint), fan speed, vent mode
Integrated cleanly into knobs or buttons
Smart Rotary Encoders
Precision detents
Push-to-select
Potential dynamic behavior (fine vs coarse adjustment)
Visual Status Indicators
Backlighting that actually communicates state
AC, recirc, defrost, fan intensity, etc.
How important is it to you that it feels like it could have come from the factory?
If you had full control of this project, what would you change first?
This thing is getting out of hand in the best way possible! I never gave any thought to the intricacies of HVAC controls…because I never had to. You clearly have a vision and I think you’re going to see a lot of support for the decisions you make as it relates to this. For me, I’d prefer simple, bombproof design without any potential failure points.
Do any OEM designs come to mind as you described the above? My wife’s Highlander controls are all I could ever ask for - but they’re pretty basic. Physical dial to set the auto temp and the system does the rest. Perfect simplicity.
Do any OEM designs come to mind as you described the above? My wife’s Highlander controls are all I could ever ask for - but they’re pretty basic. Physical dial to set the auto temp and the system does the rest. Perfect simplicity.
- Thread starter
- #84
Thank you for your comment, that is a great way to look at it, which Gen highlander? Photo example?
Are there any vehicles you’ve used where the HVAC controls really stood out as “this is exactly how it should be”?
simple and never glitches! these are 20 year old trucks.
Agreed on simple, reliable design. That's the whole ethos of the land cruiser.
I could also imagine that engineering a complicated UX adds substantial scope creep to an already complicated project.
Less is more. Keep it simple and elegant. I cannot stand the trend towards complicated confusing non-intuitive options and controls.
Question: How will this impact the rear passenger climate controls? I've owned my truck for 10 years and they haven't been used once.
I humbly submit for consideration the name "Occam's Climate Control System"
Question: How will this impact the rear passenger climate controls? I've owned my truck for 10 years and they haven't been used once.
I humbly submit for consideration the name "Occam's Climate Control System"
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Exactly.
- Thread starter
- #91
Less is more. Keep it simple and elegant. I cannot stand the trend towards complicated confusing non-intuitive options and controls.
Question: How will this impact the rear passenger climate controls? I've owned my truck for 10 years and they haven't been used once.
I humbly submit for consideration the name "Occam's Climate Control System"
No impact to Rear Climate Control!
OCCS does have a nice ring to it.
My 2014 CR-V Climate control is great - it's dual-zone, but if one knob was the temp setting and one was the fan that sort of layout would work well here too.
Actually, come to think of it, that's exactly how my '03 Sequoia is setup:
Both of those layouts just 'make sense' to me - probably the Sequoia the most. One knob for temp, one knob for fan, a simple LCD, and buttons for other stuff.
Actually, come to think of it, that's exactly how my '03 Sequoia is setup:
Both of those layouts just 'make sense' to me - probably the Sequoia the most. One knob for temp, one knob for fan, a simple LCD, and buttons for other stuff.
Just as an fyi for anyone on this thread that has a Teyes CC3 installed. There's a new version of the Climate100 app that @cryptyk created that can be used to control HVAC using a dedicated Android app instead of the Teyes version. Here's a brief summary:
If I ever decide to strip out the nav on my LC100, I definitely will be looking at this project, but for now this app is working very well for me.
cryptyk's app is much better than the Teyes version (I have and use it), but you still need to use the touch screen and have to navigate to it if you are using any other app.
Physical controls that are always available and that you can use without looking is SOOO much better.
I will probably keep the Teyes unit for carplay, audio, backup cam, but Anarchy's project has me very excited.
Physical controls that are always available and that you can use without looking is SOOO much better.
I will probably keep the Teyes unit for carplay, audio, backup cam, but Anarchy's project has me very excited.
Is there any consideration of maintaining a volume and radio tuner knob in this new control section? I know the HVAC stuff needs space but having that oversized volume knob is pretty handy, and many of the aftermarket double DIN products either omit the physical controls entirely or they are small by necessity.
Speaking solely for myself, having a fast & bulletproof system is the most important for me. Currently have a Grom VL2 and would swap it out in a heartbeat. The startup delays, terrible call mic quality, and random bugginess are the pain points. All of our other vehicles have zero friction
I am definitely interested in this for my 2003 as my only real gripe is the radio/nav/climate issue. Currently running the latest Grom VL2 and it gets the job done….but with a good bit of friction. I make lots of small trips daily with the 100 series so the 45-60 second startup and connection delay 15-20+ times/day is aggravating. My 200 connects immediately, my trucks connect immediately, that delay is juuuuuust enough of an annoyance. Definitely a first world problem, but one that I would eliminate in a moment once your solution is viable.
To answer your question, something OEM, stable, factory reliable, and fast is what I would want. Seems like that’s in line with what you’ve accomplished so far. My hats off to you for pursuing this.
- Thread starter
- #99
This.
I can't remember ever using the climate screen on my '04 LX470, the Auto button and temp control toggle seem to be all I need. Planning on putting in a Teyes HU, and thought that it would be ideal to chop the buttons and display from below the OEM screen and 3D print a surround to replace the audio control. Sizes are closer that the attached photo appears. It would be nice to keep it OEMish. No idea if the pins from these boards just pass through the OEM headunit, or if it relies on that to operate.
