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pcb design ISM Band Temperature/Humidity/Acceleration sensor

we are producer of IOT security devices and like to enhance the products by ISM Band Temperature sensor connected to our IOT devices.

Design and layout of 868 MHz Temperature/humidity sensor unit including layout and firmware. Battery operated 2 year with CR2032 (soldered). Sending every 7 s Data. Data acknowledge (so need transmitter) Temperature sensor -20°C + 70°C + Humidity sensor Capable to be calibrated by software. Expandable to enable additional 3d acceleration sensor to be integrated on board as option.

Option for PIR Sensor with light detection sensor.

Sensor is connecting to IOT Modul. Self connecting. Sensor has UID. Up to handle 128 units with one IOT device (non collision support by statistic modulation duty cycle).

low power microcontroller STM + ISM Transmitter + sheet metal antenna.

Requirements: electrical engineer with experience in microcontroller and ISM Band RF design + firmware.

preferred: experience in battery operated device development for low power design

TIMEFRAME: ~ 1 month circuit + PCB design + 2 month firmware + Test + support industrialisation.

Skills: Arduino, Electrical Engineering, Electronics, Microcontroller, PCB Layout

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About the Employer:
( 0 reviews ) Germany

Project ID: #16328229

3 freelancers are bidding on average €4745 for this job

sagradoamicus

Hi I am experienced embedded system developer with more than 8 years of experience. I have completed a number of projects before, Please review my profile to see the feedback from my previous employers Regards

€4529 EUR in 30 days
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gold2star

Hello sir, how are you? I am an Electrical Engineer with the areas of expertise in Microcontroller,Embedded System, Zigbee, BLE, and firmware development for systems. I believe that my experience and skill in this b More

€4705 EUR in 30 days
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udayd75

Dear sir, I read the project brief and understood the requirements. i have 20 year experience in design, our expertise is -Concept design, Mechanism design, Electro/Mechanical product design. -Detail design -FE More

€5000 EUR in 90 days
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