TSOP1738 IR sensor module responds to only 38 kHz pulsed infrared rays ... Its output is current sinking so that when it receives 38kHz IR rays, output becomes zero. Pin 2 of the module should get a ...

Here’s a photo of my prototype: Because the design is based on the IR sensor module TSOP1838 from Vishay ... The TSOP1838 is a miniaturized IR receiver module with a PIN diode and preamplifier ...