Find Jobs
Hire Freelancers

make me a PCB with I2C SMD for indoor air quality

€8-30 EUR

Completed
Posted almost 5 years ago

€8-30 EUR

Paid on delivery
in shortest time I want a small PCB that can read indoor air parameters such as: air temperature, humidity, atmospheric pressure, CO2 (dioxyde), VOD, visible light intensity (even UV if possible). Sensors must be SMD type and must communicate to the MCU(arduino like/ESP8266/raspberry) via I2C so that an user can chain more than a such PCB on the same MCU pins. Components can be cheap but reliable. Connector on the PCB has to be JST HX type. A short demonstration coding to put the PCB at work upon delivery is also required. Schematics and BOM must be available, better if in KiCAD format.
Project ID: 19741051

About the project

13 proposals
Remote project
Active 5 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
Awarded to:
User Avatar
Hello, My name is Andrei, i am a Romanian IOT Developer with a lot of experience in IOT projects and automatics . I have made a lot of sensors boards , for what you need here you will need a special I2C expandera , or direct connect to mcu - some of the sensors ar I2C , but some no . I deliver clean and clear solutions for the customers , according to the European regulations . I can work with all types of Microcontroles programming in C , C++ , Mikro C , CCS C , Atmel Studio , Arduino , gcc . Creating Schematics and PCB in Kicad , Eagle , EasyEDA and Proteus (+simulation). i have an workshop full of parts and the infrastructure to build PCB and test the solution end to end using special tools (Spectrum analyzers , oscilloscope , logic analyzers ) Derivable on the project : Wiring diagram for prof of concept . Schematic design PCB Design Gerber files for manufacturing MCU code explained every line - for testing prosperous As an additional service i can make you a full working prototype and ship to you. Regards, Andrei
€50 EUR in 7 days
4.0 (26 reviews)
5.0
5.0
13 freelancers are bidding on average €335 EUR for this job
User Avatar
Hi dear, I'm interested in the position of Indoor High Quality Sensor that you recently posted, particularly being of Hardware Engineering and Embedded Systems. I have experience in PCB design using KiCad, hands-on knowledge on schematic capture and multi-layer layout with signal integrity knowledge (high speed & power signals). Also, I have strong C/C++ skills and experience with microcontrollers(Arduino boards, STM32, PSoC and ESP WiFi Boards). Please see my portfolio. I look forward to hearing from you soon — feel free to contact me directly to discuss the position further.
€244 EUR in 10 days
4.9 (20 reviews)
6.0
6.0
User Avatar
Hello, I have read the details provided and i am positive i can provide quality work,please contact me to discuss more on the project deadline and some other few things
€100 EUR in 1 day
4.5 (20 reviews)
5.4
5.4
User Avatar
Hello, I would like to help with your project, bringing the required skills and experience. I believe to be highly competent in sensory, analog, RF, digital and power electronics design as well as embedded firmware for many microcontrollers. I have followed products from initial concept and prototyping to mass production. Some recent accomplishments are listed under my portfolio. The following are my initial notes: 1. it is generally not possible to use I2C to chain identical PCBs as you wish. For that, you need a different communication scheme/bus. 2. I2C is not suited for off-board connections, especially if the length exceeds some 30-50cm. Reliability suffers. 3. The requirements “SMD,cheap,reliable,I2C” cannot be met with the variety of sensor types you wish to include on the PCB. 4. Your budget is ridiculously low. Thank you for the opportunity, Best Regards -v8volante PS: I live in Italy, after 10 years in Silicon Valley. I speak fluent English.
€1,666 EUR in 1 day
5.0 (4 reviews)
4.6
4.6
User Avatar
Dear Sir, I am embedded system developer. I have expertise in designing miniature circuits. I can provide you a perfect hardware design for your project. Best Wishes
€1,000 EUR in 7 days
4.8 (7 reviews)
4.3
4.3
User Avatar
Hello sir! I already have a design that almost completely meets your requirements (see the portfolio, "air quality board" please). I am ready to adapt it to your needs as soon as possible. PS price is indicated for design only.
€88 EUR in 2 days
3.8 (22 reviews)
5.6
5.6
User Avatar
I can made I2C communication in Arduino or PIC microcontroller. I also made my designs on KiCAD. I can do what you want.
€111 EUR in 20 days
5.0 (3 reviews)
4.3
4.3
User Avatar
Hi. I'm an electronic engineering student from Argentina. I've been working in freelancer.com for more than two years, and I've completed more than a dozen projects, all with good recommendations, you can check my profile. You will get from me the best effort to deliver a project that is up to your expectations and receive a good rate from your part. I can deliver Schematic design + PCB design + GERBER files for production. Please, if you have any questions, feel free to ask me! Regards, Esteban.
€500 EUR in 15 days
4.8 (23 reviews)
4.7
4.7
User Avatar
I am a BEng. Electrical and Electronics Engineer with 5 years of experience in field living in Cyprus. I am specialized in Circuit Analysis, PCB design (EAGLE, Protheus, KiCad, Altium), Microcontrollers ESP8266, ESP32, Arduino, RaspberryPi. I have advanced knowledge on C++, Image Processing, Signal Processing, Neural Network, MATLAB and Simulink.
€277 EUR in 1 day
4.9 (8 reviews)
3.7
3.7
User Avatar
i am the coordinator of electrical engineering society at Sukkur IBA university. and My Team is consist of experts in Electrical & electronics engineering like: -- PCB designing -- Circuit Designing -- MATLAB -- LABVIEW -- PROTEUS -- Mathematics -- And almost any kind of Electrical and Electronics base projects. We will serve you with our all efforts. we will do it with reasonable price. so give me a chance to prove my team best. for more discussion, do inbox me. Thank you.
€8 EUR in 7 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hello! I have briefly read the description on pcb-with-smd development project, and I can deliver as per the requirements however I need us to discuss for more clarity on the details, deadline and budget as well. I reach out to see whether the opportunity is still available. If the job’s no longer available, I’d appreciate you throwing my hat into the ring for any similar opportunities in the future. Thank you for your time, I look forward to hearing from you soon, Best Wishes, Kevin M.
€50 EUR in 1 day
0.0 (0 reviews)
3.7
3.7
User Avatar
Hello, Sir. I can speak in English freely. I am expert of Electrical Engineering, Electronics, Mechanic, Machine learning, Microcontroller and etc Engineer. I have rich experiences in Bluetooth, BLE, Arduino, Raspberry, Altium, PCB, ARM and etc. I have full experiences of OCR, object detection, recognition, tracking, counting with python, c++/c#. so I think I can do your project perfectly. I am also FULL STACK web and mobile Developer. I will provide you high quality. I will share my previous working via chat. I will wait for you. Thanks.
€200 EUR in 2 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hello I can help you We use Kicad or other software which you want to do the design I will make you a concise pcb
€55 EUR in 4 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of ITALY
MILANO, Italy
5.0
1
Member since Dec 4, 2017

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.