3 ms·
i've backspaced over trying to be nice but i don't think you a) could've made the dtmf tones, b) matched the impedance, c) modulated the serial signal even if y
by jaystraw 3y ago
i've backspaced over trying to be nice but i don't think you a) could've made the dtmf tones, b) matched the impedance, c) modulated the serial signal even if you made a connection
please prove me wrong
- Gracana 3y agoThey’re describing pulse dialing, not tone dialing. Totally doable using a toggleable serial port pin and some basic electronics.