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pledged of 6.600 €pledged of 6.600 € goal
backers
Funding Canceled
Funding for this project was canceled by the project creator on Sep 8 2017
Last updated September 22, 2017

Arduino compatible high precision frequency counter (Canceled)

(fr) Carte fréquencemètre de précision compatible Arduino

Arduino compatible high precision frequency counter (Canceled)

(fr) Carte fréquencemètre de précision compatible Arduino

pledged of 6.600 €pledged of 6.600 € goal
backers
Funding Canceled
Funding for this project was canceled by the project creator on Sep 8 2017
Last updated September 22, 2017

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

64dce79dee3fad290e38ffa6a0855e02 original.jpg?ixlib=rb 2.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

About

This project is also presented with more details  on: https://pandauino.com/en/arduino-compatible-frequency-counter/

Présentation détaillée en français sur: https://pandauino.com/fr/frequencemetre-compatible-arduino/

The concept of this board is to build an open, very versatile frequency counter, so it can be used to measure a wide variety of signals. It is designed to be customizable in every possible way.

Freq_LF_HF v1.0 board uses the famous AVR microcontroler Atmega328p-AU. This is not the newest ATMEL model but this chip is standard on Arduino UNO v3.0 board. It is a powerfull microcontroller and very small (TQFP- 32). This gives the opportunity for users to benefit from the Arduino community support and the many software libraries. The firmware uses a couple of the wonderfull functionnalities of this chip, namely the 16 bits timer, interrupts and comparator to an external precision voltage reference.

Proof of concept was done by breadboarding and using a standalone UNO board. Followed 3 prototypes to choose between a couple of topologies and eventually fine-tune the board. It is now time to produce a first batch of at least 100 boards, by a professional assembly company, and using the latest technologies available.

Testing the concept with an Arduino Uno board.
Testing the concept with an Arduino Uno board.
  • Very wideband, It can measure frequencies from less than 5 Hz to above 70 Mhz, thanks to a unique hardware and software architecture. Low frequency signals (LF), high frequency signals (HF) and very high frequency signals (VHF) are treated separately to get full precision accross the bandwith.
  • Signal amplitude ranges from 0,5 volts to 10 volts.

  • High precision: Accuracy: 0.005%, Precision: 0.005%, Resolution: frequency < 10 Khz: 4 digits, frequency >= 10 Khz: 5 digits
Measuring: 5 Hz, 50 Hz, 440.1 Hz, 1.001 Khz, 32.768 Khz, 450 Khz, 4 Mhz, 80 Mhz.
Measuring: 5 Hz, 50 Hz, 440.1 Hz, 1.001 Khz, 32.768 Khz, 450 Khz, 4 Mhz, 80 Mhz.
Measuring at 4 Mhz.
Measuring at 4 Mhz.
  • Uses a standard LCD 16 characters, one line display for clear presentation of the frequency. LCD display can be disassembled from the board and mounted on a box as needed.LCD brightness can be adjusted by a variable resistor.

  • Can be powered using a 9V ac/dc converter or directly to PCB pins or by a 9V battery with the adapter included in the package. It tolerates voltages between 7.5 and 12 volts. The power source is protected by a polyswitch fuse.
  • It is protected against over voltage and under voltage power conditions. The board will show error messages.
  • Signal can be fed to the board using a BNC connector or PCB headers.
  • Input impedance is 1 MOhm.
  • Signal input is ESD protected by a TVS diode up to 600 W / 100A peak power discharges (Caution, this is about electrostatic discharges only! Users should never try to measure signals above 30 volts peak-to-peak!)
  • It has a reset button to reset the AVR.
  • A menu button to choose parameter values:

         * Frequency band: LF/HF (automatic low frequency or high frequency computing), LF, HF and VHF (above 1 Mhz).

         * Calibration.

  • A standby / energy economy mode is engaged when the board does not measure any frequency for 5 minutes or on demand.
  • The board is compact (approximately 82*60 mm).
Application example: sharing frequency values between Freq_LF_HF and Arduino Nano over an I2C network
Application example: sharing frequency values between Freq_LF_HF and Arduino Nano over an I2C network

  • The board comes with the “FreqLfHf” library. It is loaded with a standard program and the user can create his own program.
  •  
  • Programming in 3 lines !
Programming in 3 lines
Programming in 3 lines
  • Allows to tweak the software. Since it is based on standard Arduino libraries and coding you can tweak it and even change the functionality of the board. The library is open source under creative commons licence CC BY NC SA
  • Uses SPI port for programming through a SPI programmer or another Arduino board. It does not require a bootloader but the user can load one. This port can also be used to interface with another peripheral.
  • Has serial port (USART) available for serial communication with a PC through a USB-to-serial adapter or to interface with another peripheral. It can also be used to program the board.
  • Has I2C port available to interface with many integrated components or establish complex communication between Arduino boards.

This is a real kickstarter project, not selling of an existing product. It is an original design, never published anywhere else! It will be tested as a fully functionnal prototype, than an industrialized prototype before batch production. Contributors will have a description of the principle of operation and a DIY project tutorial (see the reward offer). Boards will be under technical and functional tests before delivery.

I live nearby the sea and I am sick of seeing the dirty beaches and the dying sea. Any industrial process, particularly in high technology, involves the use of many chemicals, precious materials, energy, transportation etc… In coherence with one of our goals, for this project I will make a contribution to The Ocean Cleanup. Also the program of the board includes a “standby mode” or “energy economy mode” that shuts down the microcontroller , the LCD screen and the amplifier circuits after an inactivity lap with respect to EU directives, or on demand.

You can read the full details of the project at https://pandauino.com/en/arduino-compatible-high-precision-frequency-counter/  

Risks and challenges

We may experience some delay in the delivery of the final product if, as an example, It happens that the product manufactured shows some quality issue or in case of sourcing problem. While prototyping I could see that this is a real problem since component stocks vary from day to day and many become obsolete. In any case I will do my best to deliver the best possible board, on time.

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Support

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    Pledge €9 or more About US$ 11

    No brainer ! / C'est pas sorcier !

    Help the project and get basic technical info on how to build your own DIY frequency counter.
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    Student offer ! / Offre étudiant !

    For students only!

    Get one high precision Arduino compatible frequency counter if you can proove you are a student during the year 2017.

    Please make sure you fulfill the condition! Limited quantity.

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    Uniquement pour les étudiants !

    Recevez une carte fréquencemètre de précision si vous pouvez justifier de votre statut d'étudiant.

    S'il vous plait n'utilisez cette offre que si vous remplissez cette condition. Le nombre est limité.

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    Early bird ! / Premier contributeur !

    Be one of the 20 first supporter and get a high precision Arduino compatible frequency counter for a reduced contribution!

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    Soyez un des 20 premiers supporters et obtenez une carte fréquencemètre de précision compatible Arduino pour une contribution réduite.

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    Developing country / Pays émergent

    Reduced contribution for people living in a country that is listed on this page https://pandauino.com/en/rdc/

    Please make sure you fulfill the condition !

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    La contribution est réduite si vous habitez un des pays listés sur https://pandauino.com/fr/rdc/

    S'il vous plait n'utilisez cette offre que si vous remplissez cette condition !

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    Support this project and get one high precision Arduino compatible frequency counter.

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    Aidez ce projet et recevez une carte fréquencemètre de précision compatible Arduino.

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    Two boards / Deux cartes

    Support this project and get two high precision Arduino compatible frequency counters.

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    Pack of 5 / Pack de 5

    Get 5 high precision Arduino compatible frequency counters.

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    Pledge €530 or more About US$ 617

    Bulk offer / Offre de gros

    Get 10 high precision Arduino comaptible frequency counters.

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Funding period

- (30 days)

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