Hi! I'm a CHEM teacher that want to built a LED bargraph conductivity tester. I want to use the LM3914 driver for this task. The tester will be use for ionic solution conductivity appreciation. I don't want metered tester nor those with only one LED that say yes or no. The 10 LED will give me a semi quantitative feedback on solution conductivity that is all i need for 15 years old students. I read about the LM3914 but i'm not an electronic designer but i will be able to built the tester i only someone can design me the schematic!
Thanks
Michel
Thanks
Michel
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