pcb design

Hi all, We have prototyped our design with icebreaker board. Now we designed a new PCB with just ice40up5k and SPI flash chip. I used this FTDI board to upload my bitstream using radiant programmer. Everything worked perfectly till here, SPI flash is erased, bit stream upload successful, but...

Hello, I am trying to get a PCB design put together through a Fiverr contractor. I wanted to use the Makura 1SC-151 cellular modem IC instead of the SIM7600E. Does anyone know where I can get an IC Schematic for this chip? If I can't get a IC Shematic for this chip what can we do so that...

I’m currently designing a PCB with usb-c, and I’d really appreciate some help reviewing my schematic and pcb layout for my usbc layout and especially the esd protection

I designed this capacitive moisture sensor, I'm not sure if it will work. I'm posting it here to see if anyone can find anything I should fix before I order the PCB (I'm a student, I don't have a lot of money to waste so I'd like to catch errors before I spend the money).

Hi, I'm Felix a 19 year old aerospace student and i have a vintage lamp for my bureau. I got it from the office where my mom used to work, why i got it is also the problem I'm having with it. It gets really hot. There is an old 50W transformer in the base and there is an halogen bulb inside. It...

To add some context to this PCB layout, it's a four-layer board with a signal/ground/ground/signal stack-up. Since the inner layers are just reference planes, I didn't add any tracks and didn't see the need to include pictures of them. I used 0.4 mm tracks for nets that needed 5V, 0.3 mm for...

Hi everyone, I’m designing a PCB that uses USB-C to program an ESP32-S2 Mini 2. It’s my first time routing USB, and I’ve run into a layout issue I’m not sure how to handle correctly. Setup USB-C receptacle (USB 2.0 only: D+, D−, CC1/CC2). ESD protection: USBLC6-2SC6 (2-channel low-cap device...

I have designed a PCB for a small battery powered hand-held gaming device that utilises the ESP32-S3. I used the ESP32-S3 Zero dev board as a reference and closely followed the recommended layout from the chip’s datasheet. The PCB was manufactured by JLCPCB however it is not able to connect to a...

There needs to be an RF antenna and detector on the PCB that can detect signals from 8GHz to 40GHz. How can I do it?

I'm totally new to PCB design. I'm struggling with this schematic circuit. Im trying to design its pcb layout using easyeda

hey hope everyone is doing great, my name is QIK I’m a student working on designing a motor system for an e-bike project. I’m seeking guidance on the best practices for motor control, selecting materials for motor components, and ensuring efficient power management. Specifically, I need advice...

Hello, I'm using the Elektra Distortion box design as the basis of my PCB. Single 2N3904 NPN transistor and clipping diodes. (I have a switch choosing between 2 silicon diodes and two germanium diodes). Any advice, suggestions/comments. Sincere thanks for the help. TonyAm

Hi all, A friend and I are in the middle of designing a KVM switch for two computers to a single monitor using the HD3SS215 from Ti. https://www.ti.com/product/HD3SS215/part-details/HD3SS215RTQR We are confused as what to do with the Config 1 signal in displayport to HDMI converter...

I apologize in advance if I violate any forum conventions here. If that happens I will adapt postings accordingly moving forward. Context: I have been working on a PCB design that incorporates the TPS61090 (Boost converter) and MCP73871 (Charge controller) of Adafruit's Powerboost1000C. I've...

Hi All, I have created a schematic, see the attached screenshot. Now I am trying to simulate how it works in a digital Spice simulator (built-in DipTrace 5.0 beta). In general, it works almost reasonably. But there are strange signal distortions on some outputs of U3 on each...

Hi, This is my first time designing a PCB and I just wanted to check that I had done it correctly or if there's anything I can improve. The main focus of this design is to scale down Voltage into a GPIO entry on an MCU and then scaling back up the voltage coming out from the MCU to the OEM...

Hello, I am trying to build an ultra-slim Raspberry Pi compute module 4 carrier board with as small of a footprint as possible. Currently I am trying to stick to the footprint of the cm4 with the connectors mounted on the bottom of the board. I am looking to have power over usb-c, a usb-a...

Subject: Seeking Guidance on ATM90 IC for Energy Metering Hello fellow electronics enthusiasts, I hope you're all doing well. I'm reaching out to this wonderful community in the hopes of gaining some insights into a specific area of interest. My name is Ammar Waseem, and I'm an electrical...

Hi all, I have a design for a SSD1306 display driver below that I tested last night and worked (given the I2C address sometimes changed out of nowhere and every couple hundred frames would have artefacts), however this morning the display is no longer even being detected by an I2C bus scan. I...

Hi I am doing a double pulse test of MOSFET (PN: IAUS300N08S5N012TATMA1). Since we have high voltage spikes and oscillation of Vds in hardware testing, I am also working on LTSpice of double pulse test. I am so confused about the parasitic parameter of the MOSFET lib, I know the MOSFET has...