Design me a data logger

Hello, No doubt.. it is a project created for me. I have done very similar project to log Temperature and Gas sensor data to sense LPG and CNG and to send it to web server via wifi. I can send photos of the prototype we made. Also the device had USB port to configure the settings like wifi parameters, web server parameters etc. Please msg me back so I can send you photos. I am an electronics designer with 12+ years of experience in electronics designing . Please see my freelancer profile for my previous project experiences and feedback scores. I am sure that I will be on the top of the bid list if there is no sponsored bids. I can send you Photos and videos of my previous project prototypes. Thank you Joby

Dear Sir, We have past experiences with electronic data loggers for temperature. Please see our profile for more details of previous projects. We will provide, 1. schematic diagram 2. PCB design 3. firmware programming 4. one prototype on development tools features 1. temperature and humidity sensing 2. WiFi connected 3. battery backed up 4. USB configurations via PC software Best regards Lasantha Prasad

Hello, I represent the team of the electronic devices developers, industrial designers and programmers. We are based in Croatia. I speak fluent English so we can communicate via Skype on a daily basis. We are currently finishing quite a similar system for a German client. I can provide more info if you are interested. I would like to hear some more informations about your idea (what kind of server are you running, how long should it run on the batteries, etc.). Also, why do you want to use USB for server connection? I would suggest using ethernet. Do you really need a PC application? I would suggest to go for a web based application. Better, safer, more convenient. We should discuss these details. We can design and make the fully working prototype of the device and prepare it for mass production. That also includes the enclosure prototype and all documentation. If you have any questions, even before you award the project, I will be happy to answer and provide any help. Kind regards Vlatko Matijevic

Hi, I have experience in similar logger systems using Arduino. Now I do test of my own logger system including Temperature, Humidity, Pressure, Power accumulators capacity and other sensors. I have experience with Arduino - sensors, wire and wireless communication, motors, data processing, TFT touch LCD, WEB interface. Also I am PC software developer and I can do PC-part (web or Desktop). Please send me details of your project. And we will define milestones for development process. I can do your project. Best regards, Slavi.

Boğaziçi Üniversitesi elektrik elektronik müh. lisans, master ve doktora mezunuyum. Renyum Elektronik adlı Ar-Ge şirketinin kurucusuyum. Benzer telemetri/veri kayıt sistemlerinin tasarımlarıyla uğraşıyoruz. İstediğiniz kalitede sensörle sıcaklık/nem ölçümü yapıp Zigbee veya daha iyi penetrasyon için 433MHz adreslenebilir CRC kontrollü alıcı/verici takımlarıyla merkezi üniteye iletebilir, PC yazılımıyla kayıt ve kontrolünü sağlayabiliriz. Mesaj atarsanız ayrıntıları görüşüp daha net fiyat ve süre bilgisi verebilirim. Pricing and duration are to be made more accurate based on the details. I have BS, MS and PhD degrees in Electrical and Electronics Engineering from one of the most reputable universities in Turkey and have 15 years of analog and microcontroller-based systems design experience (both hardware and firmware). I am founder and manager of an R&D company focusing on analog and embedded systems design. I have extensive experience with PCB designs from various fields including analog, digital, RF, low-noise and power. Please visit my profile where I present some of my work. Please note that the requested prepayment is only for the site's commission. I found it necessary because of employers disappearing after awarding the project. It can be replaced by an early milestone.

To whom it may concern, With more than 35 years of combined experience, our team of Electronic, Mechanical, Naval & Embedded Systems Engineers, offers a broad range of specialized skills, and with recognized experience in industry and research groups. We work on projects from minor design changes or analysis, to complete turnkey solutions to produce new product development and finished prototypes meeting all of your specifications. Can simulate, design and manufacture almost any Electronic circuit/design, RF & MW component, system or subsystem up to 40 GHz, Custom Instrumentation & Embedded Systems with Arduino or Raspberry PI, can provide final working prototypes, and short or long manufacture series. We provide full final documentation report with tables & graphics, pictures, simulation, etc. as needed. Altium Designer is used as a standard PCB design and layout tool, Class 3 (Military & Aerospace), generated documentation include Schematic, BOM, gerbers, mechanical drawing, drill files, pick and place files, fiducial markers, up to 8 layers, Fiber Glass FR4, CEM, PTFE & Alumina, EMC-RFI compliant if needed, double side SMT, unless otherwise stated we only provide high quality and professional made PCB´s. We will be pleased to work in your project, If you have any questions do not hesitate to contact me, hoping we meet your needs and hear from you soon. Thanks in advance, best regards. Amador G. Montero SOUTH-FIELD – SPAIN agmcia at gmail dot com

I am Venkatesh, from Brevera technologies pvt ltd, India. We are an one stop solution providing company for embedded product development. We have developed a system based on raspberry pi compute module, which has similar specifications. As per my understanding of your specification, this project needs following nodes: 1. master (data-logger) with temperature & humidity sensor, wifi , USB and zigbee connectivity. 2. Sensor node with temperature & humidity sensor and zigbee connectivity. Both nodes are battery powered. Master node should have battery charging capability too. We can provide end to end solution for you, right from product conceptualization to manufacturing prototypes, if needed enclosure design and fabrication. ( Enclosure costing not included in the proposal).