© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
The Relay based Multiplexer
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Populate Common PartsD1Back EMF dampenerLED1 LED2Output 3 pin headerR1 470ohmR2 470ohmSW1 3 pin headerSW2 3 pin headerRL1 Relay
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Populate Sensor-MUX Qty4
R3 TBDR4 TBDR5 TBDR6 TBDR7 TBDR8 TBD
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Populate MUX main tree Qty3
SW1 3 pin headerSW2 3 pin header
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Jumper Cables
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Assemble the boards-Parts3 SPST switch harnesses1-9v battery harness10-3 wire connectors4 Sensor boards3 standard boards
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Step one Connect switch to
topmost board SW1
Connect SW1 to SW2 on next board down
Continue on remaining 2 boards
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Step 2Connect switch to
topmost board SW1
Connect SW1 to SW2 on next board down
Connect first row of boards to second row as shown
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Step 3Connect
last board, switch and battery as shown.
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Activity 1If a green light
indicates a zero,and a red light
indicates a one,What binary
number will select input E?
What is that in decimal?
© 2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE
Activity 2What are the
binary numbers for:◦A?◦B?◦C?◦D?
What is the decimal number for H?