This is a true 'minimalist' remote, having but three functions:
Volume Up, Volume Down and Mute
Volume is controlled by a motorized (motorized for US readers) pot rather than any of the 'digital' pots that now abound, and this was done for a number of very good reasons.
Posted on Wednesday, April 28, 2010 • Category: FM Transmitters
This map, armored also enables automatic MONO / MPX through a low-pass filter, even with a multiplex on its entry by using an ON / ON, panning, the whole spectrum MPX more RDS is sent to the synthesizer, on the other hand when it is in a position MONO, the low-pass filter is activated and share its cutoff frequency at 15 KHz, only modulation G + D is sent to the synthesizer, as 19 KHz. 19 KHz carrier, the signal multiplex and subcarrier 57 KHz is thereby eliminated, which provides ease of use for example in a string of issue relay tuner, if the link between the issuer Departure and receiver re-issue was not of good quality stereo, you sufficient to switch to mono to improve sound quality, you can then connect the RDS encoder at the re-issuer.
Posted on Wednesday, April 28, 2010 • Category: PIC
Manji broj proizvođača proizvodi IC kola za USB podršku. Najpoznatiji su: Cypress Semiconductor, FTDI, Philips i drugi. Microchip je 2000 godine proizveo mikrokontrolere PIC16C745 i PIC16C675 koji su imali podršku za USB komunikaciju i tako se pridružio ostalim proizvođačima. Ovi mikrokontroleri podržavaju USB 1.1 standarad, odnosno USB sa brzinama rada do 1.5 MBs. Nova serija Microchip-ovih mikrokontrolera urađenja u flash tehnologiji PIC18F2445/2550/4455/4550 je podržala USB 2.0 standrad. Ovo su moćni mikrokontroleri sa brzinama takta i preko 40Mhz i veličinom programske memorije od 32K reči. O stanadardima za USB možete na sajtu http://www.usb.org. Upravo na ovim mikrokontrolerima urađen je interfejs sa USB komunikacijom.
Posted on Wednesday, April 28, 2010 • Category: Battery Chargers
This is a charger for lithium ion batteries which takes its power from the USB port of a computer.
It uses the MCP73861 or MCP73863 Li-ion battery charger chip manufactured by Microchip.
Microchip MCP73861 or MCP73863 are advanced, fully-integrated, single-cell Li-Ion/Li-Polymer charge-management devices allow these peripherals to utilize the full power of the USB port.
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