DTMF-8
www.icircuits.com
Electronics / Audio

DTMF-8

$129.00
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Intuitive Circuits

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Description: The DTMF-8 DTMF Decoder is an inexpensive, self contained, DTMF (dual tone multiple frequency) or touch tone decoder board which permits users to remotely control, via radio or other audio producing source, the on or off state of eight devices or relays. For larger applications several DTMF-8 boards can be attached to the same control audio source to control dozens of devices. DTMF-8 supports four modes of operation. These mode settings control how the DTMF-8 DTMF Decoder behaves. Password support is also available for increased protection from unauthorized entry. All information is stored in non-volatile eeprom memory.   Specifications: Dimensions: 4 1/2" x 2 1/2" x 9/16" Weight: 1.8 oz. Input voltage: 12.0 to 14.0 volts DC (250ma max.) Operating temperature: -10 C to +70 C Microprocessor: Microchip PIC16F84-04I/P (4 MHz) DTMF/Touch Tone receiver: Motorola MC145436AP Audio input impedance: 100K Ohms Audio input level: .1v to 5.0v peek to peek Relay driver: ULN2803 (eig

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$119 $129 (+$10)