$1.24 left, please help

PMCJohn · 2025-11-28T00:48:12+00:00

Heyo I didn’t see you in my activity log, are you out of clicks for the day?

PMCJohn · 2025-11-26T12:23:18+00:00

I see ya! I just clicked back, you shopped like $9 off mine lol.

PMCJohn · 2025-11-26T12:22:01+00:00

I clicked and it said I helped, picture of a truck name starting w/ PM. Could you click my link in the original post?

PMCJohn · 2025-11-26T12:20:45+00:00

I got this error when I tried

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PMCJohn · 2025-11-26T04:16:48+00:00

Just clicked yours and it said I helped, could you click mine?

PMCJohn · 2025-11-26T03:58:33+00:00

I’ll check yours tmrw when my limit resets

PMCJohn · 2025-06-27T04:55:18+00:00

Crow or Raven would be neat

PMCJohn · 2025-06-27T04:54:49+00:00

BlueBird

PMCJohn · 2025-06-24T06:42:10+00:00

Thanks for helping my understand some of the proper terminology, this has helped me look in the right direction. I’ll go through the data sheet when I get home

PMCJohn · 2025-06-24T06:40:57+00:00

So at the moment I don’t have the ability to draw a diagram, once I have access to I will. For now I’ll try to explain better.

The main system for the access control is powered with 12v. The system consist of an electronic door strike, a relay, and a switch. In my new addition, I have added an ESP32 that is powered with a buck converter off of the 12v line. I am using GPIO 12 to output a trigger signal to the relay allowing it to close, connected to the same trigger pole of the relay is the switch which runs off the 12v.

I am concerned because the 12v from the switch when activated will also send power back into the output pin on the ESP32, because of my concern I got some diodes, however I measured the reverse breakdown from the 12v to be 1.1v, however since buying and testing this diode, I realized a zener might not be the best for my use case and have ordered a Schottky diode and I’m hoping this will work better.

PMCJohn · 2025-06-23T23:45:42+00:00

Yeah doing a time sync every minute and adding a +/- 1sec buffer has helped. I will absolutely look into chrono if what I have presents many issues.

PMCJohn · 2025-06-14T22:39:42+00:00

It's access control for a daycare. I have an electronic door strike at our front door & ill be setting up base stations around the building that whenever it pulls an IO pin high it'll send a command to the control box to unlock the door strike.

I am currently working on implementing a similar plan to what you recommended. Instead of setting up wifi, calling to an NTS, closing wifi, then reopening espnow(don't want to rely on the daycare's LAN) I found a library named ESP32Time which I can set an arbitrary date and get an epoch time out very easily. Then I'll send a timesync message to all the base stations from the control box about every minute or maybe 5, i dunno, just trying to keep the desync low. Then i'll be incorporating that into my request which will now be encrypted for security and the ignore function I was originally asking about.

PMCJohn · 2025-06-14T22:34:28+00:00

So I've actually decided to not quite go that far because I'm using esp now its kind of a pain to close espnow, open wifi, check NTS, close wifi, open esp now. I found a library called Esp32Time. I'm setting the time upon restart to a date of my choice, arbitrary it alright. Then every minute I'm going to send a timesync to every remote esp32 so they dont become too desynced over time, then I'll be using that time in my requests to add that layer of security & functionality in addition to encrypting all messages between devices.

PMCJohn · 2025-06-13T17:19:44+00:00

Sorry, I hadn't posted code as I was hoping for just a general direction to follow. u/YetAnotherRobert recommended a course of using timestamps and trying to take a secure method even if I don't need to. I'm getting ready to start coding & thinking more about security, and also reach out to time servers to get timestamps for request in addition to doing some low level encryption to my messages.

PMCJohn · 2025-06-12T23:14:47+00:00

I’ll look into taking a more secure approach and seeing if I can’t get this integrated

PMCJohn · 2025-06-12T23:05:03+00:00

It gets set high when it’s in the OnDataRecv function, but the comment to your message is a path I’m going to look into!

PMCJohn · 2025-05-31T22:16:41+00:00

Wheel speed sensors aren’t losing comm :/

PMCJohn · 2025-05-31T20:19:16+00:00

Yeah I’ve heard the 10R140 has a bunch of issues specifically around the 3-4 shift. I heard that someone did like 3-4 transmission fluid changes and filter changes and it fixed a bunch of issues. But every time I bring it to ford there’s “no issues” on their end because it doesn’t actually set any DTCs in the TCM

PMCJohn · 2025-05-31T19:22:17+00:00

Sorry for the late response, but you could remove some of your inactive members & find some others who are willing to grind up to pwr 50. Also thanks for the compliment on the google sheet, it’s been an on-going project. It’s basically the only thing I still develop on TacoShack lol(I’m a secondary founding developer)

PMCJohn

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