4 ms·
How do you mean? There are only two contacts between any device and the device below it, according to the photos. This trend continues upward for all subseque
by ssl-3 2y ago
How do you mean?
There are only two contacts between any device and the device below it, according to the photos. This trend continues upward for all subsequently-connected devices.
An interface with +, -, and ground implies three contacts.
- kragen 2y agoi mean you connect one wire to ground and switch the other wire between - and + with two transistors, thus reversing polarity on it in a way that can be used to signal information while also efficiently transferring power (though only a quarter of the power you could transfer with an h-bridge across rails of the same voltage) basically rs232 signaling with just tx and ground
- ssl-3 2y agoI like it. That's related to, but more elegant than, my off-the-cuff idea was.
- kragen 2y agoi think that to the receiving device it looks exactly the same as the h-bridge approach which i think was your initial version, unless it has some other path to ground, maybe a capacitive one. but if it does have such a path, it's probably useful for it to have such a genuine ground pin