VHF DTMF

This project focuses on transmitting distance measurements obtained from an ultrasonic sensor through Dual-Tone Multi-Frequency (DTMF) signals. The system converts the sensor’s readings into DTMF tones, allowing the data to be sent over standard communication channels such as telephone lines or radio links



Oct 31,2025
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PCB
HDI PCB
Assembly
FPC/
Rigid-Flex
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2 Layers
1.6mm
CNC
Machining
Sheet Metal
3D Printing
Injection
Molding
Aluminum
Aluminum
Resin
ABS
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    Excellent quality. Well made and it works ;))
    Everything went smoothly, the PCB turned out great, even with the line art on the back side. The stencil worked great too. As always big thanks to the PCBWay team for yet another awesome PCB!
    After assembled I shall edit the sketch of operation and displaying.
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