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voting procedures see electonic voting..

http://legis.state.sd.us/sessions/2005/houserules.pdf

also:
http://en.wikipedia.org/wiki/Recorded_vote

Regardless of how the House arrives at a recorded vote, it is taken in one of three ways:

Calling the roll: The Speaker may ask the Clerk to call the Roll of members, as in the Senate. However, this procedure is reserved for formal votes, considering the amount of time consumed by calling over four-hundred names.
Teller vote: The House may hold a teller vote, in which each member signs a green card for "Aye," a red card for "No," and an orange card for "Present" (an abstention), and hands it to a Clerk, who counts the votes.
Vote by electronic device: The House may vote by electronic device. Members vote by inserting a plastic voting card, which doubles as a photo ID, into terminals located on the backs of seats in the House chamber. The member presses a red button to vote "No, "a green button to vote "Aye," and a yellow button to vote "Present." Members' names are displayed on a blue, backlit panel above the Speaker's chair, and when a member votes, a red, green, or yellow light appears adjacent to his or her name. Displays on the side walls of the chamber display a running vote total.
The recorded vote remains open for fifteen minutes, after which Members may vote in the same manner as in a teller vote, i.e., by signing a card and handing it to the Clerk, or by announcing their votes to the Clerk, but not by electronic device, until the Speaker announces the result. Sometimes an important vote will be held open by the presiding officer (the Speaker or the Speaker's delegate), for much longer, so party leaders can have time to convince members to change their votes. The longest ever recorded vote was held in the early hours of November 22, 2003, when the Republican Party (United States) held a vote on a Medicare bill open for approximately three hours, during which the President personally worked to convince two Republicans who had voted "No" to change their votes to "Aye."