Only a hardware development is required. No code.
Time for project development: max 6 days.
Sensor used for input: piezoelectric
Microcontroller used to receive the amplified sound: ESP32. Output voltage range: 0-3.3V. Midpoint Bias near V=1.65V (half of 3.3V)
Operational Amplifier model will be defined before start the project. We have some circuits tested but with problems as clipping and sensitivity signal.
Signal amplification should be the higer possible. In oder to avoid the noise, a 10-15Hz filter can be used.
We can cut any input or output signal above a specific voltage threshold
Battery used: 1x3.7V (voltage used as input for sensor = 3.3V)
Software to use: KiCad for schematic and any other software for simulate it (for example LTspice).
Project files will be provided. Mouser reference will be used for the BOM. ([login to view URL])
12 фрилансеров(-а) готовы выполнить эту работу в среднем за €45
Hi there, I am an Electrical Engineer with long experiences. I have read your project details carefully. I am interested to do the project. Lets chat and discuss further to start working. Thank you.
Hi I am an electronic engineer with rich experience of over 7 years I think I can work for your project correctly. Please let me discuss about your project in detail Thanks Tran
Hi i have more than 8 years experienced In circuit design and development in my past i have deisgned lot of opmap based board for company i can design best way under meiemc
Hi friend, My name's Hieu, an Electric Engineer, I'm good at Power, Charger and Wireless also. I see your request but i think we need a conversation for more information. Please contact me for best result Regards,