MMC was designed as a low-cost data platform and communication medium, its interface design is very simple: only 7 pins. Interface costs less than $ 0.5, compared with SmartMedia and Memory Stick interface costs are higher than U.S. $ 1. In the interface, power supply is 3-pin, and data manipulation using only the 3-pin serial-bus (SPI mode coupled with a needle used to select the chip). MMC’s operating voltage of 2.7 volts to 3.6 volts, write / read current of only 27mA and 23mA, low power consumption. It’s read-write mode, including streaming, multi-block and single block. Block is the smallest unit of data transfer, the default block size is 512bytes. Representative models: promise in mind N-Gage QD, 7710,6600,3650 and so on. Some details of cell phone jammer should be further discussed.
RS-MMC card: full name (Reduced Size MultiMediaCard). This card standard originally developed by MMCA (MultiMediaCard Association) released in November 2002. Its size is only half the standard MMC card, but the latter inherited all the advantages and performance characteristics.
Find the rough direction of the signal source (signal sent by the wireless camera and all wireless equipments) through the wireless detecting of detector at first. Such four detecting mode of detector as the vibration detecting, acoustic detecting, visible detecting and mute detecting can be selected.
Second step: Turn on the laser and search with the spy lens. The visible top point is the camera and no one will be missed (the wired camera can perform the second step directly).
The sensitivity can be freely adjusted (the radio wave sensitivity adjustment: four-part adjustment LED light indication can increase sensitivity and enlarge detecting range or reduce sensitivity and shorten detecting range) to find the radio wave source more quickly.
The wireless detecting of detector has various warning functions: acoustic warning, vibration warning and LED light warning.
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