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Idea: Building a flashlight runtime tester

flashlight runtime tester using arduino

There are many articles discussing about building DIY lumen tester and I came across an idea to build such device using Arduino and some light intensity detector module to test a flashlight’s runtime.

Instead of using lumens measurement during the time frame, I will only calculate its percentage during some period of time. Here’s my expected result of the test:

flashlight runtime tester using arduino

I think it’s a lot easier for flashlight user to imagine their flashlight brightness changing using percentage instead of the amount of lumens output.

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