== SoftModemBreakoutBoard == == SoftModem Interface Board == With this board, datas are transferred from Arduino to iPhone and from iPhone to Arduino. The communication speed is 1225bps (※ The actual data transfer rate slightly lower.) It is suitable for a small amount of data communication like switch inputs and sensor information. This is semi-finished products. To use this, solder a pin header or a pin socket to this board. '''Dimensions: 33 x 18mm ( without audio jack )''' == Applications ==