submitted by /u/OscarCravatte [visit reddit] [comments ..read more

Hey guys, my first time here, I want to etch a double sided pcb home but I simply have no clue how can I make vias or even connect a pad on the two layers. Any information can help. submitted by /u/Muhammad_Subhi [visit reddit] [comments ..read more

Hello there, This is part of my very first attempt at pcb design. I want to make a basic hx711 board with a servo pin input this will act as a pcb relay where a servo connects to this board. I'm not so sure about the wiring and all the specificities. Tried to follow this : https://cdn.sparkfun.com/datasheets/Sensors/ForceFlex/hx711_english.pdf The goal here is to have low noise on the hx711 so it might need something more here ... I also connected rate to ground so it's in 10hz which is better in terms of noise. I'm only using 1 layer for cheaper pcb. I hope I formulated everything correc ..read more

Hi all, I am working on a hobby project to convert a GameCube shell into a PC case for an intel NUC. I wanted to reuse the original GameCube power switch, which is a normally open latching SPST switch. However, the case headers on the NUC require the power switch pin to be pulled to ground momentarily: NUC Front Panel Headers I have designed a circuit to achieve this which will replace the original GameCube power switch PCB. I am a mechanical engineer with very limited electronics experience so this was quite the undertaking. I have never designed a PCB before but I have been doing my hom ..read more

I have a board I designed in EasyEDA. In order to have the through holes NOT get plated, I need to name them all as "pcb.name-NPTH.txt". There are 1521 holes which I need to not be plated so renaming them individually is not sensible. If I select a hole and then choose "select similar" however, the ID field goes away so I cannot rename them all that way. Does anyone know how I can rename all the holes to "pcb.name-NPTH.txt"? Thanks. submitted by /u/Prestigious_Dust_827 [visit reddit] [comments ..read more

I'm seeking a review for the power management aspect of my ESP32 project. The goal is to enable running from the battery when USB power is absent, run from USB and charge when connected, and maintain awareness of battery status. However, I've encountered several issues: The battery gauge consistently shows the battery at 200% full, potentially indicating an incorrect reading from the charger. Controlled 3V3, the idea was to be able to cut off power to peripheral devices when the ESP32 during sleep mode. However, now power is supplied when VOLT_CONTROL is low (i.e., the opposite). Also, t ..read more

Hello, I have been building this small gadget board based on the Attiny 3224 which purpose is to display little graphics on an oled ssd1306 128x32 screen. It is powered by being plugged into a USB A port but doesn't have any data connections. I don't have a lot of experience so any feedback is appreciated ! Schematics Front PCB Back PCB 3D straight ​ 3D fantaisy Thank you ! submitted by /u/angusluigi [visit reddit] [comments ..read more

submitted by /u/ruari636 [visit reddit] [comments ..read more

Hello! I have done some electronics projects in the past, but this will be my first PCB design! Essentially, this is a barometric altimeter based on an ATmega32u4 that will be running on Arduino. As this is my first design, I expect there to be a decent amount of both obvious and nuanced problems with my design, and I hope you guys can help me work through them. Here is some additional information about the project. (feel free to skip the yapping) This altimeter is intended to be flown in some model rockets that range from mid-power (F motor) to some lower(ish)-high-power (H, J, K motors ..read more

Hi guys, I'm doing a PCB with a BGA153 footprint for an eMMC device(0.5mm pitch, 0.3mm pad size). Its a simple adapter board, so there are no other components(just a few passives). From what I've read, ENIG is the way to go due to its superior flatness over other types of surface finish. But i'm wondering if I can get away with the cheaper HASL, or if I actually need ENIG finish on the board? Could I "clean up" any height differences like you do with solder wick before you hand-solder a BGA? I don't see why that wouldn't be at least as "bad" as factory-made HASL? The eMMC will be reballed pri ..read more