The fourth member of our MakeIR series of devices & kits will be DetectIR. This infrared receiver module can be configured for Visual IR signal detection, Serial over IR or as an Infrared receiver which can handle even the longest Air conditioner signals. DetectIR is built with only the highest quality IR components available.
The third member of our MakeIR series of devices & kits will be RepeatIR. This infrared repeater module boasts several unique features not readility available to date and is built with only the highest quality IR components available.
The second member of our MakeIR series of devices & kits will be SendIR. This infrared emitter module boasts several unique features not readility available to date and is built with only the highest quality IR components available.
The first new member of our MakeIR series of devices & kits will be LearnIR. This infrared learner packs lots of functionality for such a small device, several IR innovations and is built with only the highest quality IR components available.
A common question asked on forums is one about – Driving an Infrared Led directly from an Arduino pin. Although the answer may be obvious to anyone with at least a basic knowledge of Ohm’s Law, many are confused about how to choose a resistor value for optimum performance. Often, there is a debate about whether a resistor is required at all, given that the AVR pins are rated to deliver an absolute maximum of 40mA on a pin. (Note: All of the quoted specs in the data sheet are for test conditions of up to 20mA on a pin). Of course there are better ways to drive an IR LED with a transistor circuit or even a constant current circuit. However, in this post we consider only the direct drive circuit using a current limiting resistor, as illustrated in the diagram down below. Make sure to read the caveats at the end of this post.
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IMPORTANT NOTICE: We are taking a break & our next shipping date will be mid-November 2021. Until then we are offering 15% off "all shipped orders", as a token for the shipping delay. AnalysIR orders will not be delayed, due to electronic download. Use discount code 15OFF during checkout to avail of this discount. Once we return any order placed will be shipped. You can go-ahead and order a copy of AnalysIR as we can still process that remotely. TIP: You can still use the existing discount code for orders of AnalysIR, 5offanalysirDismiss