Compact IoT Hardware Design & Development

@amelectronics

Hi, I have experience in designing Circuits and can complete your project. I have expertise in the following: 1- Designing schematic and PCBA 2- Ordering the PCBA and getting boards manufactured. 3- Writing firmware for the PCBA to make sure everything works as expected. 4- I can also develop smartphone apps to communicate and control the hardware. If you wish we can discuss in chat. Thank you.

@cpp2048

Planning to design this board in KiCad 9.0 or 10. I will design it with all 3D models and if you have stock enclosure and STEP file is available, I can collaborate with my ECAD to fit in perfectly. Deliverables will be KiCad design files, Gerber files, BOM and CPL as well as STEP file for the board. If you have schematic already ddesigned, I can do that at lower cost.

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@shivkantverma

Hi, Greetings! I am interested in working on your project. Please share the design details, specifications, and project requirements so we can discuss them further. I look forward to working with you. Thank you. Shivkant Verma

@abdurRafiqM

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq

@shadabkhan92

Having analyzed your project description, I can confidently say that I'm the right candidate to bring your Compact IoT Hardware design and development dream to life. Complementing my skills in Electrical Engineering, Electronics, and Embedded Systems, I possess a robust experience in Microcontroller selection and usage. In particular, my familiarity with the R7FA8M1AHECFB (Cortex-M85 400MHz + Helium, LQFP144) model mentioned in your project speaks to my expertise in the field. My proficiency in PCB Design and Layout and having worked on numerous 4-6 layer PCB designs matches perfectly with your project's requirements. Additionally, my experience with storages like the W25Q64JV (8MB NOR SPI) will prove vital to optimizing the memory resources within your hardware design. Notably, my advantages extend beyond just hardware knowledge; I am also well-versed in deploying on AWS, GCP, Azure, using MQTT-connected sensor networks. This makes me uniquely positioned to ensure that your hardware integrates seamlessly into the larger IoT ecosystem you envision. I build production infrastructure projects like yours – not mere prototypes! Choose me for a finished work that exceeds expectations both qualitatively and functionally. I await your positive response.

@Santoshchaulaga

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist

@Webslinger01

Your BOM tells me you've done your homework — Cortex-M85 with Helium, nRF5340 plus nRF7002 for dual wireless, and that smart pairing of IIS3DWB for high-frequency vibration with ADXL357 for low-g acceleration. Here's what I bring to this: → I shipped a production nRF52840-based board for the Smart Golf Ball project that handled BLE Mesh, 9-axis IMU data at high ODR, and strict power management on a coin cell → I've designed 4-6 layer PCBs with cellular (BC660K-GL) and WiFi/BLE antenna routing, including the Taoglas FXP73 and FXP70 antennas you've specified — RF layout is where most boards fail → I can handle the full stack from schematic capture through layout to firmware bring-up, including the nRF5340's BLE stack and the R7FA8M1's Helium DSP pipeline for your sensor data My approach: → Start with a power tree and signal integrity review — the dual TPS62840 buck converters need careful sequencing, and the BQ25180 charger path with the BQ27441 fuel gauge needs to be validated against your battery chemistry → Lay out a 6-layer PCB with controlled impedance for the LTE and WiFi/BLE traces, keeping the nRF5340 and nRF7002 SPI path clean and the IIS3DWB SPI line short → Deliver a fully assembled prototype with firmware that exercises every subsystem on your BOM, plus full KiCad source files, a verified BOM with stock-checked distributors, and a bring-up document For this scope, the cost would be $13000. Happy to jump on a chat.

@soniaer987

I read through your BOM and honestly, this is a really well-thought-out design — Cortex-M85 with Helium, dual wireless with nRF5340 plus nRF7002, and that mix of high-frequency and low-frequency accelerometers. You've clearly put serious thought into the architecture. I'd love to help take this from a parts list to a working, testable PCB. Here's what I bring to this: → I've built similar multi-radio boards before — my work on the Smart Golf Ball involved integrating nRF52840 with BLE Mesh alongside IMU and power management on a tight 42mm form factor, which maps well to your 60x60mm constraint → I can handle the full stack — schematic capture, 4-6 layer PCB layout in KiCad, firmware bring-up for the R7FA8M1, and even the companion nRF5340 firmware if needed My approach: → Start with a detailed schematic review against your BOM, checking power sequencing for the dual-buck setup (TPS62840s) and the BQ25180 charger path, then move to a 6-layer stackup optimized for the cellular and WiFi/BLE antenna routing → Develop the firmware bring-up in phases — first the R7FA8M1 with FreeRTOS and the IIS3DWB SPI driver, then the nRF5340 BLE stack, then the BC660K-GL cellular AT command integration For this scope, the cost would be $12500. Happy to walk you through my approach and past work on a chat — I think this is a really interesting project and I'd love to help get it built.