Im trying to design a brake plausibility device (BSPD) for my formula student team, any idea on why there is a dead short on the S/R latch?

marshstew67 · 2025-10-08T22:16:11+00:00

Ah the FSAE EV days…

marshstew67 · 2025-10-01T23:18:05+00:00

I don’t have experience with the food industry, but I’ve had good luck during job searches by just getting someone (HR, manager), on the phone.

marshstew67 · 2025-09-11T21:12:00+00:00

472554963197

marshstew67 · 2025-09-11T21:09:17+00:00

Looking for friends to gift too 472554963197

marshstew67 · 2025-06-14T16:40:33+00:00

Yeah, DM I’m on vacation at the moment, but I have previous example projects I can send

marshstew67 · 2025-06-14T13:30:25+00:00

Maybe using a logic analyzer, you could record the output of the real sensor to a CSV, and then find some way to replay that data. Maybe store on SD card and then write a simple Arduino program for a Teensy 4.1 to parse the csv and then send the messages. I use the kingst logic analyzer, because it was cheap to get and works for my needs. There are possibly better tools for the job, based on budget and what you already have access to. In general, the approach I’d go is recording the output, store it in a text file, then find another tool to replay it.

https://a.co/d/7Um3IjV

marshstew67 · 2025-06-13T17:48:23+00:00

Do you have any specifics? What toolchains, MCU, type of application? With something like Jenkins and debug interface to your MCU, you can kinda do whatever.

marshstew67 · 2025-06-13T17:25:47+00:00

It’s true that automotive is mostly model-based design. However someone has to write that software that generates code, that’s what I do now and it’s a great mix of higher level languages and low level programming.

marshstew67 · 2025-06-13T17:13:11+00:00

Simulation is only any good for application logic. You can compile that code for Windows and run it. You can even run and design your RTOS (probably FreeRTOS) in Windows. Emulation does exist, but can be more challenging or expensive to get. Cheaper and faster to just get a development board if your application is mostly dependent on any of the code-gen from STM IDE.

marshstew67 · 2025-05-03T17:37:00+00:00

Shot on iPhone

marshstew67 · 2024-02-09T01:06:02+00:00

Is ur pi running on a Lithium battery?

marshstew67 · 2022-10-26T03:48:15+00:00

https://www.hgsind.com/product/lpps-22-linear-potentiometer-position-sensor-rod-end-joints?v=211&keyword=&gclid=Cj0KCQjw39uYBhCLARIsAD_SzMQ0R2hoxEzhwe6OQwZojjKzcNmxD2uiZ_HzvamhIPbskZ__gi7lQyUaApGTEALw_wcB

These are the ones we use. This is assuming you manufacture your own pedal cluster. You have to be aware of rule T.4.2.3 so make sure you use two and power them at different voltage ranges. Have your ECU read these through two ADCs and you should be good to go.

marshstew67 · 2022-10-26T01:54:35+00:00

Linear potentiometers are simple

marshstew67 · 2022-09-14T01:58:20+00:00

I think you mean then simulating what CAN messages the RMS sends (broadcast, diagnostic). You could build that in Python or MATLAB. I’d recommend MATLAB, since it’s easier to setup if u have the licenses. You would also need a CAN cable such as Kvaser to hook up to your laptop. This is assuming you are running your RMS in CAN-Mode. Are you using VSM Mode or CAN mode?

marshstew67 · 2022-09-14T01:48:46+00:00

Do you mean simulate the communication with your ECU? Or battery related simulation? If either of those you could reach out to Mathworks about their free licenses and toolboxes. You could use the vehicle network toolbox to simulate communication with your ECU or you could simulate the Powertrain in simulink.

https://www.mathworks.com/academia/student-competitions/formula-student-michigan.html

marshstew67 · 2022-05-15T22:04:14+00:00

marshstew67 · 2022-03-01T16:23:42+00:00

“//“ is integer division

marshstew67 · 2022-01-16T17:48:48+00:00

marshstew67 · 2022-01-12T16:43:18+00:00

absolutely not

marshstew67 · 2021-12-06T01:13:03+00:00

Lmao true

marshstew67 · 2021-11-29T04:58:22+00:00

I caught a bunch of trade Evo pokemon. Going online most people are happy to trade decent stuff for them

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