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Copyright © Parallax Inc.

Digital I/O Board Kit (#27113)

v1.0  2/19/2010  Page 2 of 13

Bill of Materials

Part #

Designator

Description

Quantity

200-01040

C1-C3

Capacitor, .1uF Monolithic, 100V, 10%

3

201-01075

C4

Capacitor, 1000uF, Electrolytic, 25V, 20%

1

350-00006

D1-D8

LED, Red T1-3/4

8

350-00007

D26, D28

LED, Yellow T1-3/4

2

350-00001

D9-D16

LED, Green T1-3/4

8

501-00006

D17-D24

Diode, 1N4004 Rectifier

8

501-00007

D25

Diode, Schottky, 40V/3A

1

179-00050

RN1

Resistor Network, 8-ISO, 1K, 1/4W, 2%, DIP-16

1

150-01020

R1-R8,R33,R42

Resistor, 1K, 1/4W, 5%

10

156-02235

R1_B-R8_B

Resistor, 560, 1/4W, 5%

8

150-02210

R9-R16,R34

Resistor, 220, 1/4W, 5%

9

150-01030

R17-R24,R43

Resistor, 10K, 1/4W, 5%

9

156-02240

R25-R32

Resistor, 1.5K, 1/4W, 5%

8

602-01040

U1-U8

IC, 4N25 Optoisolator, DIP-6

8

500-00005

U9

IC, ULN2803 Darlington Array, DIP-18

1

602-00009

U10

IC, 74HC595 Shift Register, DIP-16

1

602-00010

U11

IC, 74HC165 Shift Register, DIP-16

1

452-00052

S1-S8

Socket, IC, DIP-16

8

452-00053

S9

Socket, IC, DIP-18

1

452-00054

S10-S11

Socket, IC, DIP-16

2

452-00012

J1-J17

2-Position Terminal Block

21

452-00007

J18

2.1mm DC Barrel Jack

1

452-00049

J19

2x10 (20-pin) Dual Row Header

1

452-00048

J20

2x5 (10-pin) Dual Row Header

1

451-00301

JP1

3-pin SIP Header

1

451-00201

JP2

2-pin SIP Header

1

452-00009

—

Shorting Block (Shunt)

1

300-27113

PCB1

Raw PCB

1

Resources and Downloads

You may download free example programs, articles, videos etc. from the Digital I/O Board product page

on our website.  Check back periodically for updates or additional examples including example programs, 
customer applications, articles, etc.

http://www.parallax.com

Search for 27113 on our website.

Содержание 27113

Страница 1: ...input voltages by changing a couple of components Features Mechanical or Solid State Relay output Configurable Input Voltage range Serial or parallel interface to inputs outputs LED indication of power and input output status AppMod compatible connection for Board of Education Key Specifications Power requirements 12VDC 1A for relay power and 3 3 5VDC for logic power Communication Parallel or Sync...

Страница 2: ...2 01040 U1 U8 IC 4N25 Optoisolator DIP 6 8 500 00005 U9 IC ULN2803 Darlington Array DIP 18 1 602 00009 U10 IC 74HC595 Shift Register DIP 16 1 602 00010 U11 IC 74HC165 Shift Register DIP 16 1 452 00052 S1 S8 Socket IC DIP 16 8 452 00053 S9 Socket IC DIP 18 1 452 00054 S10 S11 Socket IC DIP 16 2 452 00012 J1 J17 2 Position Terminal Block 21 452 00007 J18 2 1mm DC Barrel Jack 1 452 00049 J19 2x10 20 ...

Страница 3: ...erprints Set your board in a position to start installing and soldering groups of components In the following steps the component locations will be highlighted with a yellow square circle Step 2 Install Resistor Network RN1 into the location shown to the right The notch should be toward the top Solder this device in carefully avoiding overheating the component as will all components from this poin...

Страница 4: ...e right The components stand on end in the right hole with the stripe facing up as shown in the inset and the other lead bent over into the left hole This is vertical mounting of an axial component Step 6 If you will be using input voltages outside the range of 15 30VDC then please skip this step until you read the section on setting the input voltage range Install the 1 5K resistors R25 R32 into ...

Страница 5: ...s shown at right Color code is Red Red Brown Gold Inset shows details Step 8 Install the 10K resistors R17 R24 and R43 into the positions shown at right Color code is Brown Black Orange Gold Inset shows details Step 9 Install the 1K resistors R1 R8 R33 and R42 into the positions shown at right Color code is Brown Black Red Gold Inset shows details ...

Страница 6: ...Gold Install these in the same manner as previous resistors Step 11 Install the headers resistors J19 J20 JP1 and JP2 into the positions shown at right Inset shows details Step 12 Install the Terminal Blocks J1 J17 21 pcs total into the positions shown at right Note 12 Terminal Blocks must be snapped together for the relay connections These slide together vertically to create one long strip ...

Страница 7: ...Step 14 Install Diode D25 into the position shown at right With the diode mounted in the right side with square the stripe should be on the bottom The other lead should bend over into the left hole Inset is from other side Step 15 Install Capacitors C1 C4 into their respective positions as shown at right Observe proper polarity on C4 C1 C3 are non polarized Inset shows details ...

Страница 8: ...le and the 74HC165 U11 is on the bottom Step 17 If you have not already done so you may now install the shorting blocks shunts The details for these are covered later in this documentation Inset shows detail for JP1 set for inverted serial data Step 18 Install the relays you have chosen for your application in any position Relays only install in one direction and you cannot mount both types in the...

Страница 9: ... the need for an additional power supply If your microcontroller s board has an on board voltage regulator you can obtain V from the Digital I O Board and then send your regulated output back to the VDD pin V will be at the voltage of the relay supply typically 12VDC Connecting and Testing Parallel Interface Using the parallel interface 2x10 header controlling relays is as simple as making a pin H...

Страница 10: ...o LOW during a LOAD operation The DIN line has a 1K resistor in series to allow sharing of the 74HC165 data line with the 74HC595 DATA_RLY line By connecting these lines together and also connecting SCLK_RLY to SCLK_IN you can reduce the number of I O pins required by your microcontroller down to four 4 In this configuration LAT_RLY and LOAD_IN must have their own I O pins and OE_RLY can be connec...

Страница 11: ...the input using a 1K resistor VINMAX 1000 0 02 1 2 21 2V Sensitivity Because of the way the input LEDs are driven on the output they will indicate voltage on an input even when it is not sufficient to trigger and output Voltage as low as 2V will cause the LED to start to glow however the output won t trigger until the minimum current has been reached This provides some safety in the sense that you...

Страница 12: ...es AppMod connector Pin Name Function 1 V Relay Power Can be disconnected via JP2 2 VDD Logic Power 3 RLY1 Relay 1 Control Line 4 RLY2 Relay 2 Control Line 5 RLY3 Relay 3 Control Line 6 RLY4 Relay 4 Control Line 7 RLY5 Relay 5 Control Line 8 RLY6 Relay 6 Control Line 9 RLY7 Relay 7 Control Line 10 RLY8 Relay 8 Control Line 11 IN_1 Input 1 Signal 12 IN_2 Input 2 Signal 13 IN_3 Input 3 Signal 14 IN_...

Страница 13: ...ata Out to 74HC595 input from host microcontroller 5 SCLK_IN Synchronous Serial Clock input from host microcontroller 6 SCLK_RLY Synchronous Serial Clock input from host microcontroller 7 LOAD_IN Load Inputs input from host microcontroller 8 LAT_RLY Latch Relay Output input from host microcontroller 9 VSS Ground 10 OE_RLY Relay Output Enable input from host microcontroller Module Dimensions Module...

Страница 14: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Parallax 27113 ...

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