Custom 3rd Brake Light (Upd: 18th August)

[Matty_Z4]

For the floating pin can you just not use the appropriately sized pullup / pulldown resistor to tie the signal high or low until triggered? Not sure how it would affect the inbound signal from the voltage divider.

Looks like a pretty good project, always love a good DIY electronic project.

Without getting into a huge electronics lesson, the short answer is no - you wouldn't / shouldn't do that when using voltage dividers. What I've done, and that code snippet is the best method to use.

Thats why I let the engineers engineer no worries about explaining I have google will keep me busy for a while.

 

[IAmOrion]

Thats why I let the engineers engineer no worries about explaining I have google will keep me busy for a while.

haha - if you google voltage dividers and Arduino's I'm pretty sure you'll find the same kind code and circuit diagram. No idea if you'll find a decent explanation on the reasoning but google is always your friend

Do you do Arduino projects yourself?

 

[Matty_Z4]

Thats why I let the engineers engineer no worries about explaining I have google will keep me busy for a while.

Do you do Arduino projects yourself?

Ive only done one or two, spend most of the time reading hackaday thinking that would be cool but somehow never find the time. Im more of a software guy with a passing interest in hardware.

 

[IAmOrion]

Ive only done one or two, spend most of the time reading hackaday thinking that would be cool but somehow never find the time. Im more of a software guy with a passing interest in hardware.

Ah fair enough. What language do you write in?

I do objective c & Swift (so MacOS & iOS), .net, .php, js, Java, python etc etc. Back in my younger years it was all about VB6 or Borland Delphi & Pascal ha

 

[Matty_Z4]

Ive only done one or two, spend most of the time reading hackaday thinking that would be cool but somehow never find the time. Im more of a software guy with a passing interest in hardware.

Ah fair enough. What language do you write in?

I do objective c & Swift (so MacOS & iOS), .net, .php, js, Java, python etc etc. Back in my younger years it was all about VB6 or Borland Delphi & Pascal ha

Wow VB6, Delphi and pascal now your showing your age

I mostly code in manufactures proprietary languages.

NetLinx ( Butchered java without the OOP bit)
SIMPL ( This is more like assembling analog logic with and/or/interlocks etc signals between blocks act very much like it would on a pcb)
SIMPL+ ( Event driven language based on C no OOP)
S# ( C# using .NET 3.5 compact framework and special libraries)


Python and Node.js/HTML5/CSS are in my to learn pile