Dtmf frequency4/21/2023 ![]() Practical signal amplitudes will be much lower. ![]() The contents of these Altium files has not been checked.ĮTSI ES 201 235-2 V1.1.1 (2000-09) describes some rules DTMF-generators should comply to. The PCB design files have also been exported to Altium format and have been added to the repository on GitHub. PCB design files are online on EasyEda.) can be found on : GitHub project's releases Production data (hex-files, gerber files, schematics.Firmware source code can be found on : GitHub.There's little more annoying on Hackaday.io than people "sharing" their project, but keeping the source files to themselves. no modifications to rotary phone required. ![]()
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