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I need someone to build a Karaoke circuit that consists of 5 blocks. All are connected together, the only thing is the output of block 3 is connected to both block 4 and 5. I need no errors done at all, because it is difficult to track it. The design is better built in a software so that I can follow the instructions. Note: I was told that in block 4 the resistors are connected to the negative terminal of the op amo. Also, the op amp used is the LF412 Dual Op-amp. Switch used is SPST, (EG1218). I also need instruction to test the circuit in MyDaq, we could go over it together through Zoom after the design is build. I need the design built in less than 48 hours. The description pdf file is just an overview of the whole project, just to get an idea of what we are doing.

Please refer to the word attachment for gas monitoring system.

Couple of Lab questions need help with circuit design and risc v programming , Quartus Need help for next 10-12 hours to be completed

This project focuses on designing and developing a compact ESP32-S3-based control device for smart lighting systems. The device will feature ON/OFF relay control, smooth dimming functionality, and real-time wattage monitoring, catering to residential and industrial applications. The system will transmit data in JSON format to designated endpoints, ensuring seamless integration with modern IoT platforms. The project will progress through structured phases, including planning, hardware development, firmware implementation, testing, and documentation, delivering a fully tested prototype that meets our specifications.

6 Layer Altium Designer board which has been updated and now needs the layout completed.

We are seeking an experienced PCB designer to help us mount a microamplifier onto a suitable substrate. We particularly want to mount the Nixel 512 channel chip onto a PCB board: https://science.xyz/docs/d/ic-nixel-512/index Mounting this chip requires a microfabricated substrate such as a silicon interposer or high-density PCB with multiple layers, capable of routing signals from the chip to connectors or larger pitch PCBs. The substrate should support fine-pitch routing, possibly utilizing: - Silicon substrates with Through-Silicon Vias (TSVs) for vertical interconnects. - High-Density Interconnect (HDI) PCB technologies. You should scan/read the documentation at the above link before bidding on this job. PLEASE NOTE THIS JOB REQUIRES EXPERIENCE with custom substrate and flip-chip bonding. If you don't understand or have worked with this before, please do not bid on this job. Thank you for your understanding.

I am seeking a skilled PCB designer to create a Gerber file for my custom PCB project. I have already selected all the necessary components and will handle the soldering myself. The ideal candidate should have experience in PCB design and be familiar with electrical engineering principles. Your expertise will help ensure the design is optimized for performance and manufacturability. I prefer you to use EasyEDA. Please share your portfolio or examples of previous PCB designs when applying. Please see more about this project scope "PCB Designer Scope Task" as well as additional resources for this project here: https://drive.google.com/drive/folders/1hrFCqAQvWG_1_qZvGIjTOBcQvvZOWj88?usp=drive_link

We are looking for someone who has experience in designing intrinsic safe circuits that can be used in explosive environments. We already have a design for a battery powered sensor node, we want it to get reviewed and redesigned to comply with the ATEX/IECex standards

I have pcb design already that I would like refined and made smallest as possible. The pcb circuit is a standalone bluetooth beacon. Would like to discuss with an expert on what can changed so that the overall height is thin as paper if possible.

Simple PCB layout design (interface board for Arduino Nano: small PCB for mounting 5 electronic components. KiCad, Eagle or Altium. This is fixed-price micro project.