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Review my PCB design - a audio shield for a ESP32 dev board

$10-30 USD

Закрито
Опублікований over 2 years ago

$10-30 USD

Оплачується при отриманні
Hi, i have created a shield for a ESP32 dev board and before i send it to production i would like to get a second opinion on it. It is a audio recorder with a LiFePo4 MPPT solar charger for a 6V panel. So noise should be considered even though a digital microphone (I2S) will be used. Here is a link to the design: [login to view URL]
ID проекту: 31852599

Про проект

14 пропозицій(-ї)
Дистанційний проект
Активність 2 yrs ago

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14 фрілансерів(-и) готові виконати цю роботу у середньому за $49 USD
Аватарка користувача
We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: • Embedded C Programming. • VHDL/Verilog, LABView/ Multisim/PSPICE • Network Simulator NS2/NS3 • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM32. • IDEs like Keil MDK V5, ATmel studio and MPLab XC8. • PLCs / SCADA • PCB Designing-Proteus, Eagle. • IOT Technologies like Ethernet, GSM GPRS. • HTTP Restful APIs connection for IOT Communications. Also we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements. We can deliver your project efficiently within timeline. If you choose me, I think you won't regret. Best Regards.
$250 USD за 7 дні(-в)
4,6 (51 відгуки(-ів))
5,9
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Аватарка користувача
Hallo, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems' design. So far I have designed many PCBs and I am experienced with EMI hence I am quite sure that I can help you with your project just give me all the details and I will do my best to help you. Best regards
$50 USD за 7 дні(-в)
5,0 (34 відгуки(-ів))
5,2
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Аватарка користувача
Hello Dear Sir, I am Electronic Engineer. Experienced in field of Embedded System Design and Develompent. Main Area of Interests Are Home Automation,Industrial Automation,IOT System Design,Embedded System Design,Altium ,Eagle ,PCB Design,Live schematic,Proteus,Vision System Design based on Matlab. Expertise in Technologies:AVR,PIC,ARM,PSoC,Arduino RaspberryPi. I'm Full Stack Developer( prototype/ PCB/ firmware/software/Mobile Application/Mobile accersories).
$25 USD за 7 дні(-в)
5,0 (14 відгуки(-ів))
4,3
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Аватарка користувача
Hello, thank you for your job posting. I have 5 years experience in PCB and circuit design and Manufacturing, Embedded programming, and i can help you with any kind of request in these fields. I will do my best to satisfy the clients with my excellent skill and help them achieve their goal. You give me the opportunity, then i will give you the perfect result in return.
$25 USD за 2 дні(-в)
4,9 (5 відгуки(-ів))
4,3
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Аватарка користувача
A ) I have over 20 years of experience in PCB Layout, HW, RF, EMI, FW, PSpice … etc. We can complete various design and layout requirements and Android / iOS app development. # 8051 MCU / ARM Embedded system / Arduino / STM32 / IM6x / AVR / TI MSP430x / PIC / EP32 # WIFI / BT / BLE / GPS / LCD / DTV / MD / Web Camera / LED / Lighting / RPIx / CM4 / CM3 / UP CORE PLUS # LCD Inverter / Touch sensor / NIC / LAN / KSZ9031RNX / LAN8720 / IOT / nRFF528x / ESP8266 / TI CC26x # Battery / Solar Charger / BMS ( Battery Management System ) / Audio / CSR / Codec / AMP / IO-Link / LTE EC25 / BG95 B ) I can use as below to design and layout # Altium # Protel99SE # Eagle # PADS # KiCad # OrCad # Allegro # Proteus # DipTrace C ) I can communicate well in English, please contact us by e-mail or s-k-y-p-e me (saludpcb) to find out relevant details D ) I also have to provide PCB layout design service (super low price) # 1 ~ 8up layers ( PCB / FPCB ) High Speed / High Density PCB layout # Differential Signal PCB layout # RF Signal PCB layout # 3D Models # FreeCad E ) PCB / PCBA (EMS) # Prototype # Components procurement # Assembly # High quality # Quick, 24hr lead time # Low cost
$30 USD за 7 дні(-в)
4,9 (6 відгуки(-ів))
4,0
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Аватарка користувача
Hello. We are a company of mechatronics, electrical, computer and software engineers with vast expertise in PCB layout. our main area of interest are embedded systems, AC/DC converters, stepper motors, transformers, machine learning, raspberry pi, automation, power management, sensors & signal processing projects. We have completed several projects in hardware and pcb design. We can assure you that your work will be done within the given timeline with complete task achievement. Feel free to contact for further queries so I may guide you well.
$25 USD за 7 дні(-в)
5,0 (8 відгуки(-ів))
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Аватарка користувача
HELLO DEAR EMPLOYER, First receive warm greetings, and hoping you are good, i welcome you to TOP GRADE SERVICES LTD, the home of Amazing services and quality. EXPERT IN NAMED SKILLS, OVER 18 YEARS OF EXPERIENCE, After KEENLY reading your description and being in possession of all CLEARLY STATED REQUIRED SKILLS as this is my area of PROFESSIONAL SPECIALIZATION having the above QUALIFICATIONS, i hereby humbly request you to consider my bid for QUALITY and PROFESSIONAL work. ###No Upfront payment// No timeline & Quality Excuses// Unlimited Revisions// Milestone payment STRICTLY after 100% Client Satisfaction### Message Me We Discuss More About The Project. THANK-YOU & WELCOME.
$30 USD за 1 день
4,9 (7 відгуки(-ів))
3,6
3,6
Аватарка користувача
Hello How are you? Thanks for your posting job. I have read your project requirements and I am 100% sure I can complete your project perfectly. ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ I have 15 years experience in Circuit & PCB layout design and Microcontroller Firmware design. I will do my best to give you satisfactory results if you hire me. Please discuss about your project in more details. I can deliver your job efficiently within timeline. If you hire me, I think you won't regret. Best regards. Thank you Koba
$30 USD за 1 день
5,0 (3 відгуки(-ів))
3,4
3,4
Аватарка користувача
Hello, I am an electronics engineer with extensive experience in hardware and firmware design for microcontroller-based systems and IoT devices. I have developed many products, and some of those are following. 1: Tank level sensor with the online dashboard. 2: BLE IoT gateway for scanning Bluetooth beacons. 3: A Parking guidance system. 4: An IoT wristband for social distancing. 5: Temperature/humidity logger. Kindly contact so I can share my portfolio with you. We can discuss cost and timeline in chat.
$25 USD за 7 дні(-в)
5,0 (1 відгук)
3,4
3,4
Аватарка користувача
Hello, I have 10+ years of Embedded product design with multiple domains like a consumer, industrial, automotive, IOT and wearable product. -Hardware architecture design using MCU, controller, and FPGA, as well as low power battery, operated device -Experience in all phases of product development from prototyping to mass production -Experience in Schematic and high-speed PCB layout board design with multilayer PCB design, Blind & Buried Vias in HDI Design. -Expertise in hardware testing and troubleshooting/root cause -Working experience on power management system design with Buck-boost, Battery charger, and fuel gauge, USB3.0 Ctype and PD charging, POE and etc -Expertise in design and simulation of analog circuits -Experience in Microprocessor and microcontrollers like NXP, ST, Microchip, Marwell, Qualcomm, MediaTek, TI, Renesas, and Atmel -Exposure in mechanical design review -Expertise in wireless SOC with Bluetooth, WIFI, 4G, Lora, Zigbee from NXP, Nordic, Ublox, Qualcomm, Cypress, Broadcomm, TI, ESP, Silabs, Microchip -Experience in wire interface USB2/3, SPI, I2C, UART, HDMI, Ethernet, SDIO, MIPI-CSI/DSI, CAN, Modbus, RS232, RS485 -Expertise in solving problems of EMI/EMC -EMI / EMC compliance testing and product certification like CE/FCC/UL and etc Also, We have a team for software development, firmware development as well as CAD design. we will define milestone and adjust amount after discussion Let me know if you need help from me. Thanks. --Alpesh
$25 USD за 7 дні(-в)
5,0 (1 відгук)
1,6
1,6
Аватарка користувача
Hello! I just read your job description and confirm I can provide your some help to you because I have already developed lots of Li-ion and lithium phosphate battery management system. I'd like to start the project by discussing the project in detail with you. By doing this way, we will save our time and focus on projects more. I am confident of my skills and I am sure that I can finish your job perfectly. Please contact me for further discussion. Thank you!
$20 USD за 1 день
0,0 (0 відгуки(-ів))
0,0
0,0
Аватарка користувача
Hi, I can help on this. I can tell you missed some parts on the schematic. Why did you already make the design before having the schematic checked? Regards, Michel
$100 USD за 7 дні(-в)
0,0 (0 відгуки(-ів))
0,0
0,0

Про клієнта

Прапор GERMANY
Schoellnach, Germany
5,0
7
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На сайті з лист. 22, 2017

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