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c program to control cmx865 reading DTMF codes
The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectiona...
The PCA9671 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectiona...
The PCA9672 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectiona...
The PCA9673 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectiona...
RFC1050---Remote Procedure Call Protocol Specification