u/hfurbd

This is the 2 pcb for my line follower robot, I plan on plugging in a 3s lipo battery into the xt30 to power the board, then just connect the two pcbs via ffc.

I'm not sure how I'm going to model the chasis, I wanna just have it 3d printed but I don't know any applications to use so the dimensions would be accurate to the pcb.

I'm pretty new to pcb making so there's probably some problems with the tracing.

another thing, I have no clue if I have the ffc latch backwards or not so there's that.

I'm pretty new to pcb making and I'm not sure if I'm making this right, I also don't have allot lf reference for this.

This is the main board for my Line tracer robot, I plan on powering it with a 3s lipo battery to achieve the needed 12v for the motors.

the ffc latch is connected to another pcb tha thas the ir sensors that's connected to a mux.

The drv8871 is a breakout board, I wanted to make the robot semi modular so I can just swap stuff out if needed, the motors are also just placeholders for the actual 12v I'll be using. As far I can tell from what I've read, the P+ is just an alternative 12v input? I'm not sure on that though

I can't find any use sample for the buzzer so I just guessed what I thought it might look like with soem cross referencing.

3 buttons for programming purposes

The xt30 is gonna be the plug I use to connect it to the battery, not sure if I have the switch implemented correctly

The buck converter might also be wrong but probably not since I just copied what was on the data sheet + the led, if anything is wrong it's probably the values.

This is the schematic I have for my line tracer robot's plug, switch and buck converter.

I'm fairly new to this so I'm not sure if it have this right.

Also not sure if I did the schematic right.

any help or tips is appreciated, thanks.

Making the buck converter for my line tracer robot, I need both 12v for the motors and 5v for the components

I'm planning to plug the xt30 to a 12v battery

I'm notsure if I'm supposed to hse the net codes like this or if I'm supposed to connect them all together with wires

Working on the light sensor array pcb for my line follower robot and just finished it. Not really sure how well I did since this is my first pcb(Technically 2nd because I redid it after finding out how much double sided assembly costs), a review and things to note would be a big help, thanks.

edit: sorry for the blurry pic

Using the qre1113 ir sensor and I'm not sure if I can use the connection in the second pic for the signal or if I have to do it like the the third pic, sample use in the first pic.

(For clarification the one in the second pic is connected in the pads and the third one it isn't)

Currently working on the array pcb for my line follower robot and are in the process of actually connecting everything together and noticed things quickly start to devolve to messy tracing and constant use of vias. A few thing I want to ask.

1. Is using this many vias fine?

2. Is there a method so it doesn't just devolve into a mess?

3. is this pcb fine or do I just need to power through til it's done?

currently struggling because everything seems to be overlapping with one another and I'm not really sure when it's fine to connect things in parallel or in series (connected the emmiters in parallel and the collectors in series)