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  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam8 months ago
    Car Raspberry Pi3 Dash Cam

    Yeah..It did look confusing when i see it now. COM receives always ON circuit[+12V] from car battery. NO - Normally Open goes as an input [ +5V via LM2596 ] to Raspberry PI. You can see more configuration options for this timer in http://www.plexishop.it/pdf/I120%20-%20datasheet.pdf

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  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam9 months ago
    Car Raspberry Pi3 Dash Cam

    I am already accessing the files using mobile tethering[Step 4 screenshot] to retrieve only that is of interest to me. But you can very well extend this to upload all your files to your home server using wifi and a simple python program considering the proximity of car garage.

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  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam11 months ago
    Car Raspberry Pi3 Dash Cam

    Hi Marco,I have thought about this and was sceptical initially about the compatibility/interference and tight corners that the cable needs to go through. Anyway I am trying to directly solder the 15 pin flex cable to the 19 pin HDMI cable instead going through the module [Why not do it the hard way :)]. I am working with an upgraded version of this project now and will let know once it works without any issues.Appreciate your inputs as well !!!ThanksVijay

    Hi Marco, I have thought about this and was sceptical initially about the compatibility/interference and tight corners that the cable needs to go through. Anyway I am trying to directly solder the 15 pin flex cable to the 19 pin HDMI cable instead going through the module [Why not do it the hard way :)]. I working with an upgraded version of this project now and will let know once it works without any issues. ThanksVijay

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  • vijayp44 commented on Nick_Zouein's instructable Aux Input for BMW 325i Business CD1 year ago
    Aux Input for BMW 325i Business CD

    Thanks Nick. That clarified on what I was looking for. Though not required I will use a 'silence' CD in 'CD' mode and then will adjust my volume in the MP3 device.

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  • vijayp44 followed Nick_Zouein and vijayp441 year ago
  • vijayp44 commented on Nick_Zouein's instructable Aux Input for BMW 325i Business CD1 year ago
    Aux Input for BMW 325i Business CD

    Looks like you are directly inputting audio signal to TDA7376B chip - Power amplifier for car radio. Can you still use the volume control in the car when using aux input?

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  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam1 year ago
    Car Raspberry Pi3 Dash Cam

    Thanks Stuart for your feedback. It records @ 480 resolution/15 frames per second. Believe it or not this was the toughest part in the entire project to tweak, as anything lesser resulted in poor video quality and anything higher it started to hog the CPU for resources. Overall the whole project is running fine for the last 4 months without any major issues and I am surprised as well with its robustness. The only issue i have faced so far is with maintaining time a couple of times though i have the RTC module - ds3231 installed with a good battery. Yeah, and as you pointed out writing onto SDCard all the time is prone to card failure issues...will try to incorporate USB storage when i have some time.

    Hi, I really wouldn't recommend 2 USB cameras attached to Raspberry PI3, as it will enforce all video encoding in CPU resulting in resource hogging & poor video quality. You can have 1 USB and 1 Raspberry Pi camera. That will definitely work, as Pi camera uses the CSI port and thus not heavily relying with Raspberry Pi CPU. The final picture would look like :- 1) 1 USB camera - Uses CPU and records @ 480 resolution/15 frames per sec 2) 1 Pi Camera - Uses GPU and records @ HD. I haven't tried this setup, but it should work for most part without any issues. Refer to my GitHub for coding instructions. You can use the crontab to add an entry for another Pi camera using python program. Best of luck and let us all know on how it comes. Thanks,Vijay

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  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam1 year ago
    Car Raspberry Pi3 Dash Cam

    Hi, Thanks for your inputs, have couple of queries with that setup and appreciate your response. 1) Looks like GPU hardware encoding is supported only through CSI port. So even if it is adapted to HDMI Cable will it still support GPU encoding and will I be able to achieve the 720P, 30fps video recording? 2) Does that setup still support/work with the pi Camera python libraries?

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  • vijayp44 followed vijayp441 year ago
  • vijayp44 commented on vijayp44's instructable Car Raspberry Pi3 Dash Cam1 year ago
    Car Raspberry Pi3 Dash Cam

    I did verify and test this part with the help of multimeter when doing my initial testing/setup with the car. The Voltage sent to Pi didn't drop any less than 5V. I could only think of 2 reasons here:-1) Either the electrical system is rock solid in my car as I usually don't see that much voltage drop in the instrument cluster or2) The combination of Timer circuit with Voltage regulator- LM2596 helped it. The timer circuit continues to power the whole setup for 3 seconds even after a complete switch of and may be that helped if there were a drop.Anyway it's been 3 days, at least started my car for 20+ times and haven't found a single improper bootup or shutdown.Will post if I encounter any issues and thanks for your queries.

    I did verify and test this part with the help of multimeter when doing my initial testing/setup with the car. The Voltage sent to Pi didn't drop any less than 5V. I could only think of 2 reasons here:-1) Either the electrical system is rock solid in my car as I usually don't see that much voltage drop in the instrument cluster or2) The combination of Timer circuit with Voltage regulator- LM2596 helped it. The timer circuit continues to power the whole setup for 3 seconds even after a complete switch of and may be that helped if there were a drop.Anyway it's been 3 days, at least started my car for 20+ times and haven't found a single improper bootup or shutdown.Will post if I encounter any issues and thanks for your queries.

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