Editing Atari interface (section)

====Sega 8-bit====
Sega's various 8-bit consoles have mostly the same hardware, albeit upgraded in later models and with small differences between models for Japan and for other markets.
The first SG-1000 came with two [[joystick]]s. The SG-1000 Mark-II and SG-1000 Mark-III had gamepads, each with a detachable joystick nub on the [[d-pad]]. The Sega Master System came with gamepads without joystick nubs.

The standard controllers are passive devices containing switches and no electronics, so they should be safe to use with Atari-compliant host sockets.{{citation needed}}
<!-- I have only seen images of one side of the circuit board. Not sure if something hid on the other side./Findecanor -->
The second button are supported by many Amiga games, and by the Kempston interface for the [[#ZX Spectrum|ZX Spectrum]] but not by Atari systems.

Active controllers draw power from pin 5 instead of pin 7. Pin 7 was used by light-guns.
Paddles for the SG-1000 Mark III/Master System contain an A/D converter and presents the reading in 8 bits divided into nybbles on lines 1-4, with pin 9 to indicate high/low nybble. On the Master System outside Japan, the pinout was slightly different so the host first selected high/low nybble on pin 7.<ref>Raphaël Assénat—[http://www.raphnet.net/electronique/sms_paddle/index_en.php DIY SMS/MarkIII paddle controller]. Dated 2016-10-15. Retrieved 2018-06-11</ref>