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Infrared Receiver (VS1838B) includes high-speed high-sensitivity PIN photodiode and a low-power
5% Distortion Typical at fis = 1 kHz
8-channel multiplexer and microprocessor compatible control logic
2GB or 4GB LPDDR4-2400 SDRAM (depending on model)
NRF24L01 2.4GHz Wireless Transceiver smoke Infrared Receiver (VS1838B) includes high-speedIntroduction : Wireless control capable of up to 2mbit communication with a range from 40 to 100m. Has on board antenna. The nRF24L01 is a single chip 2. 4GHz transceiver with an embedded baseband protocol engine (Enhanced Shock Burst), designed for ultra low power wireless applications. The nRF24L01 is designed for operation in the world wide ISM frequency band at 2. 400 2. 4835GHz. An MCU (microcontroller) and very few external passive components