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Help with Microblance project

So currently I am trying to build a custom microbalance based on the Arduino MEGA 2560 chip, some At-cut quartz crystals with a 6MHz resonance frequency and a crystal oscillator driver (SN74LVC1GX04). Firstly, I want to try and make a prototype that prints the frequency value through the serial port. If this works properly I will try to add a display, an SD card and maybe some Wi-Fi if it's not too complicated. However, before trying to connect the crystal I wanted to see how accurate and stable can the frequency measurement of the ATMega 2560 can be since for this application they should be as good as possible.

Main problem that I am encountering is that arduino Mega 2560 is running on a 16MHz ceramic resonator and frequency mesurements are not accurate or stable. My idea is to make a custom PCB and replace it with a crystal oscillator (TCXO). My objective is to get a 1Hz accuracy and resolution since this is for accurate microbalance mesurements. However, after looking into it the best TCXO the best that I have been able to find with the same 16MHz resonace frequency have only 2.5ppm frequency stability. I have also seen the option of using a OCXO wich is in the range of ppb wich would be much better but I was unable to find a 16MHz option to fit directly (after changing fuse bits ) in the ATmega2560.

I would need someone experienced to solve doubts and provide guidance on how to follow this project to obtain the desired results.

Skills: Electronics, Microcontroller, Arduino, PCB Layout, Embedded Software

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( 1 review ) Barcelona, Spain

Project ID: #28803623

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(3 Reviews)
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5 freelancers are bidding on average €238 for this job

doggar302

Hi! I am an Electronic engineer, PCB Layout, Circuit Design, microcontroller, STM32 microcontroller, C programming expert having past experiences with ,Altium, arduino, pic, AVR, chipkit and Texas instruments microcont More

€250 EUR in 7 days
(9 Reviews)
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Devpro11

Hello, there. I know enough about the SN74LVC1GX04 device and have the experience of making the DDS wave generator. I have 3+ years experiences in Electrical Engineering & PCB Layout & Circuit Design. Hope further disc More

€250 EUR in 5 days
(6 Reviews)
4.1
braincenter

Hello, Hope this message finds you well, I checked your details and I believe that my experience is what you are looking 4. I have been working on similar projects for the past eight years, and I have the essential sk More

€140 EUR in 7 days
(8 Reviews)
4.4
marinafokina9696

Have a good time! I know your "Help with Microblance project" project specifically and I can make it perfect using ELECTRONICS, PCB LAYOUT, ARDUINO skill. As a well-known development team in Russia, we have ama More

€300 EUR in 7 days
(3 Reviews)
3.9