‰  NOW 25 WPM  ‰  TEXT IS FROM OCTOBER 2018  QST  PAGE 35 ‰

ONE OF THE 16 INPUT PINS, A DIGITAL HIGH LEAVES THE RELAY IN ITS OPEN
RELAXED ARMATURE STATE, WHEREAS A DIGITAL LOW PULLS DOWN THE RELAY
ARMATURE.  AS AN ADDED BONUS, THE SAINSMART BOARDS ALSO CONTAIN A 5 V
REGULATOR, ALLOWING THEM TO BE CONNECTED DIRECTLY TO A 12 14 V POWER SUPPLY
AND PROVIDE THE REQUIRED 5 V FOR THE ARDUINO COMPUTER.  THE PERIPHERAL
CONNECTORS SEE FIGURE 2 INCLUDE A 13 PIN DIN CONNECTOR FOR THE ICOM 9100
ACCESSORY CABLE, EIGHT PIN AND SEVEN PIN DIN CONNECTORS FOR THE ICOM IC
756PROII ACCESSORY CABLES, AN EIGHT PIN DIN CONNECTOR FOR THE KANTRONICS
KAM INTERFACE, 1/4 INCH PHONE JACKS FOR THE KEYER PADDLE CONNECTIONS, 1/8
INCH PHONE JACKS FOR THE EXTERNAL SPEAKER CONNECTIONS, RCA JACKS FOR THE
AMPLIFIER, COAXIAL ANTENNA RELAY AND AUTOMATIC ANTENNA SWITCH CABLES, EIGHT
PIN CIRCULAR DIN CONNECTORS FOR THE MICROPHONE CABLES, AND A COAXIAL POWER
CONNECTOR.  CONSTRUCTION  CONSTRUCTION REQUIRES CAREFUL ATTENTION TO THE
‰  END OF 25 WPM TEXT  ‰  QST DE W1AW  ƒ