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Driving an IR LED: constant current source or not – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
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SparkFun Max Power IR LED Kit - KIT-10732 - SparkFun Electronics
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Infrared LEDs
IR Emitter LED 940nm 5mm (5-Pack) - ProtoSupplies
1-Channel Infrared Remote Control Relay Module IR Switch 5V: Amazon.com: Industrial & Scientific
Intro to IR Circuits : 9 Steps (with Pictures) - Instructables
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IR Emitter LED 940nm 5mm (5-Pack) - ProtoSupplies
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