/tag-en/dtmf
| Title | Short description |
|---|---|
| DTMF RF remote | DTMF remote over radio waves. |
| DTMF decoding and generation | Generating and decofing DTMF tones with two ICs. |
| Phone call alert | Alarm alert over PSTN phone line. |
| Phoneline controller v1 | Control your appliances over PSTN phone line. |
