用AT89C2051产生DTMF信号 with 89c2051 simulation of DTMF

Title: 用AT89C2051产生DTMF信号

Category:
SCM
Tags:
[ASM] [源码]
File Size:
2.16kb
Update:
2008-10-13
Downloads:
1 Times
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Description: with 89c2051 simulation of DTMF signals, widely used in anti-theft alarm, telephone data transmission; Savings and resumption of the circuit, and low cost.

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