Voltmeter

-

hi.

i'm new arduino.

i build voltmeter light leds.

0,01mv 0,05mv light red led.
0,05mv 0,15mv light yellow led.
more 0,15mv light green led.

is possible?
what necessary arduino equipment so?
is advanced project?

thank you!

the arduino part trivial.
the analogue electronics not quite so.


Arduino Forum > Using Arduino > Project Guidance > Voltmeter


arduino

Comments

Post a Comment

Popular posts from this blog

Error compiling for board Arduino/Genuino Uno.

-
hi new arduino , trying write code of temperature controlled fridge can adjust pot , temp in fridge changes lowest setting -15 , highest setting 30degrees. the temp drops below input pot im trying make compressor turn on , light show compressor on. new @ , im still not quite sure im doing. error below keeps popping , im not quite sure whats wrong code. im hoping on close path how should have done it, how fix error appreciated. arduino: 1.8.4 (windows 10), board: "arduino/genuino uno" c:\users\admin\appdata\local\temp\ccfcxdpc.ltrans0.ltrans.o:(.rodata+0x6): undefined reference `print::write(unsigned char const*, unsigned int)' c:/program files (x86)/arduino/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/lib/avr5/crtatmega328p.o:(.init9+0x0): undefined reference `main' collect2.exe: error: ld returned 1 exit status exit status 1 error compiling board arduino/genuino uno. this report have more information with "show verbose output during comp...
Read more

Installation database is corrupt

-
dear all,   last month installed trial version of cs3 on pc , when decided install extended version of cs3, it  didn't install.  learned adobe use wincs3clean script, downloaded , ran on computer, using level 1. after tried installing extended version of cs3 got message "installation database corrupt" , can't install cs3.  can me , let me know how solve problem? use windows, xp 2. appreciate help. charleshhh install what... disc or download   if download... rename original , download again... downloads corrupted More discussions in Photoshop Windows (read only) adobe
Read more

RFID-RC522 with Arduino Pro Micro project. Error on the code?

-
Image
hi all, first of newbie... i trying make below project, keep having type of errors. let start project page: unlock pc/mac rfid my hardware: arduino micro rfid-rc522 code: code: [select] //get library https://github.com/ljos/mfrc522 //sketch: gudjonholm@gmail.com /* pins    spi        uno    mega2560  leonardo 1 (nss) sda (ss)   10     53        10 2       sck        13     52        sck1 3       mosi       11     51        mosi1 4       miso       12     50        miso1 5       irq        *      *         * 6       gnd        gnd     gnd       gnd 7       rst     ...
Read more