IR Sensor(ROM-WT138L(N))
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IR Sensor
Remote control receiver modules
These ROM-WT138LM(N) series are remote control receiver modules,
the pin diode and receiver IC are assembled on one module. Small-sized,
light-weight, and low current consumption. Modules have been achieved by using resin mold and the demodulated output signal can directly be decoded by a microprocessor. The benefits are reliable functionality even in disturbed ambient and the protection against uncontrolled output pulses.
Example: https://wiki.odroid.com/odroid_go/arduino/37_ir_receiver
Features
Supply Voltage Range: 2.7V to 6 V
TTL and CMOS compatibility
Photodetector and preamplifier in one package.
Internal filter for PCM frequency
Open collector output (built-in Pull-up resistor(40 ㏀ ))
Output active low
Enhanced Immunity against all kinds of disturbance light
No occurrence of disturbance pulses at output pin within nominal conditions.
Short settling time after power On.( below 1msec)