LM358 Circuit for Arduino

Other Hardware General Electronics
1

Hello everyone,
I want to make that arduino seismograph: DIY extremly Sensitive and cheap Arduino Seismometer | Arduino Project Hub, but I dont know how to make the LM358 amplifier circuit without the module (Post mentions that this can be done with some resistors).
Can someone provide a suitable scematic?
Any help will be greatly appreciated.
Thanks!

2

Often, you can buy the PCBWAY module from PCBWAY. Note that there is a precursor project, so this is part 2/2.

3

Just buy the module. Search on Amazon for " LM358 Weak Signal Amplifier".

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4

IMG_4165
IMG_41651298×1300 135 KB

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5

Thanks for the info everybody!
Now I tried to compile the nerdaqII sketch with all its libraries (Memoryfree ,biquad,boost_filter,denoise_filter,detrend_filter) but I got the following errors:

code.ino:209: undefined reference to `biquad_clear'
code.ino:210: undefined reference to `biquad_clear'
code.ino:234: undefined reference to `detrend_biquads'
code.ino:234: undefined reference to `detrend_biquads'
code.ino:234: undefined reference to `biquad_filter'
code.ino:234: undefined reference to `detrend_biquads_g'
code.ino:234: undefined reference to `detrend_biquads_g'
code.ino:234: undefined reference to `detrend_biquads_g'
code.ino:234: undefined reference to `detrend_biquads_g'
code.ino:241: undefined reference to `boost_biquads'
code.ino:241: undefined reference to `boost_biquads'
code.ino:241: undefined reference to `biquad_filter'
code.ino:241: undefined reference to `boost_biquads_g'
code.ino:241: undefined reference to `boost_biquads_g'
code.ino:241: undefined reference to `boost_biquads_g'
code.ino:241: undefined reference to `boost_biquads_g'
collect2.exe: error: ld returned 1 exit status
exit status 1

Can anyone help me?
Thanks

6

I compiled it with no errors.
You need to have all the files that are in the zip folder inside your sketch folder.

You should see all the files like this

image
image1380×283 15.1 KB

7

Thanks for the info!
I renamed the .pde file to .ino ,thats why it didnt work

8

I tried both pde and ino, both worked.

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9

Yeah ,I tried it again and now it worked with .ino extension.I dont know what I was doing wrong before...

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10

No problem.

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