Демонтаж. Чипы для организации связи по радиоканалу обычной радиостанции. Может работать модемом до скорости 2400 бит. Кодировать декодировать субтоны и DTMF. В комплекте два чипа и два кварца на нужную частоту. Простое подключение, управление по SPI. 500р. Перешлю боксберри.

• Automatic signal type scanning and IRQ on
detection of valid Rx signals, level or RSSI
• Voice processing facilities, including Tx and Rx
gain setting and voice/subaudio filtering
• Tone generator for caller recognition tunes • C-BUS serial host interface
• Programmable power down control • RF interface allowing 1 or 2 point modulation
• Programmable signal detection thresholds • Programmable soft limiter
• Low Power operation with Zero Power mode • Enhanced CTCSS and 23/24 bit DCS codecs
• Uncommitted Aux ADC with switchable input
to monitor signals
• Zero ‘talk down’ CTCSS decoder performance
prevents dropouts
• Silent operation by removal of unwanted calls • ‘All call code’ and ‘monitor’ modes for CTCSS
• Selectable voice companding • Audio scrambling
• XTCSS channel and data signalling
• Robust Half Duplex FFSK/MSK modem,
1200/2400 bps, gets data through when signal
is too degraded for voice – for text
messaging/paging, location transfer, etc.
applications.
• Robust automatic packet data protocol with:
Error correction and detection, Interleaving and
data scrambling/privacy coding.

И ещё.
MSP430F449 8-MHz MCU with 60-KB flash, 2-KB SRAM, 12-bit ADC, comparator, SPI/UART, 160 seg LCD и прочее по даташиту. Демонтаж.
20 шт 2000р.