PC Printer Port Relay Board (Assembled) (version 2)

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Do you have an old PC lying around the house which absolutely no one wants? Then you can convert it into a dedicated controller. Communicate with the real world via the parallel printer port on your PC. Simply connect a DB25 straight trough cable from computer to DB25 connector on the relay board. There are 8 relays each capable of switching 12VDC/10A or 240VAC/5A. Each relay has an LED to indicate when it is operated. We provide two sets of complete, stand-alone software to control the relays: one works under DOS so you can write your own batch files to control individual relays, the other works under Windows. Needs 12VDC center positive 2.5mm power supply. PCB Size 6.75" x 2.75" (CPA74)

Quantity	Price
1 – 9	$39.99
10 – 99	$37.79
100 +	$36.54

Skill Level of Item:		Assembled and Tested
Product #		CPA74
Quantity Available:		11

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PC Printer Port Relay Board (kit) (version 2)

Do you have an old PC lying around the house which absolutely no one wants? Then you can convert it into a dedicated controller. Communicate with the real world via the parallel printer port on your PC. Simply connect printer cable from computer to Centronics connector on relay board. There are 8 relays each capable of switching 12VDC/10A or 240VAC/5A. Each relay has an LED to indicate when it is operated. We provide two sets of complete, stand-alone software to control the relays: one works under DOS so you can write your own batch files to control individual relays, the other under Windows 3.1. Needs 12VDC center positive 2.5mm power supply. PCB Size 6.75" x 2.75" (version 2) (CPS74)

Quantity	Price
1 – 9	$36.34
10 – 99	$33.75
100 +	$32.63

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS74
Quantity Available:		7

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Click here for specs, downloads, and more pictures.

Serial Isolated I/O Module (Assembled & Tested)

8-Relay Module (mains rated - 110V and 250VAC.) An extension of our Kit CPS74, PC controlled 8-Relay Board with 250V switching relays and added features. It is in a plastic case, latched relay operation, 250V relays switched in safety by using Dinkle connectors, and with 4 external inputs. Uses serial port so it can be located over 100 yards from the PC. Comes with case and end panel pieces as shown in the photos. Requires a center positive 9-to-12V DC power supply, at least 500mA, 2.5mm jack. (CPA108)

Quantity	Price
1 – 9	$107.56
10 – 99	$99.99
100 +	$96.57

Skill Level of Item:		Assembled and Tested
Product #		CPA108
Quantity Available:		16

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Serial Isolated I/O Module (kit)

8-Relay Module (mains rated - 110V and 250VAC.) An extension of our Kit CPS74 (see next kit), PC controlled 8-Relay Board with 250V switching relays and added features. It is in a plastic case, latched relay operation, 250V relays switched in safety by using Dinkle connectors, and with 4 external inputs. Uses serial port so it can be located over 100 yards from the PC. Comes with case and end panel pieces as shown in the photos. Requires a center positive 9-to-12V DC power supply, at least 500mA, 2.5mm jack. (CPS108)

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USB/RS485 I/O Controller (Relayduino)

KTA-223 ‘Relayduino’ USB/RS485 IO Module:

The KTA-223 is a USB or RS485 controlled IO module for interfacing PCs to real world applications, such as controlling lights and sprinkler systems, reading sensors and monitoring switches and other digital signals. The Relays are capable of switching up to 5A at 250VAC, 10A at 120VAC and 10A at 24VDC but the PCB tracks will only handle up to about 5A. A simple ASCII protocol allows control from Windows/Mac/Linux using either USB Virtual COM drivers or RS485. Additionally, multiple devices can be connected to one RS485 bus, allowing control of many devices from one USB port.

The controller is based on the hardware of the Arduino physical computing controllers. It can be programmed as a stand-alone controller using the free, open source Arduino environment. Internally, the controller is “shield compatible”, allowing the use of many extension boards designed for the Arduino Deumilanove. As shipped the controller is loaded with a sketch that receives simple commands over the USB or RS485 serial port and switches relays or responds with the status of inputs.

Multiple controllers can be connected to one or more PCs in an RS485 network. Each controller can be assigned an address and will respond to commands addressed to them.

Features:

8 Relay Outputs 5A 250VAC
4 Opto-Isolated Inputs 5-30VDC
3 Analog Inputs (10 bit)
Connections via Pluggable Screw Terminals
0-5V or 0-20mA Analog Inputs, Jumper Selectable
5A Relay Switching
Power Indicator LED
All enclosed in Professional looking plastic case
Arduino Compatible
Accepts Arduino Shields (Ethernet / XBee)
USB Virtual Serial Port or RS485 Input
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Quantity	Price
1 – 9	$139.95
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8 Relay 8 Analog USB IO Controller 12 V

Description: The KTA-225 is a USB or RS485 controlled IO module for interfacing PCs to real world applications, such as controlling lights and sprinkler systems, reading sensors and monitoring switches or analog signals. The Relays are capable of switching up to 5A at 250VAC, 10A at 120VAC and 10A at 24VDC but the PCB tracks will only handle up to about 5A. A simple ASCII protocol allows control from Windows/Mac/Linux using either USB Virtual COM drivers or RS485. Additionally, multiple devices can be connected to one RS485 bus, allowing control of many devices from one USB port.

The KTA-225 has relays with 12 V DC coils and requires an 9 to 15 V DC supply.

This controller is based on the hardware of the KTA-223 controller, but the number of analog inputs has been increased at the cost of the digital inputs. It can be programmed as a stand-alone controller using the free, open source Arduino environment. Internally, the controller is “shield compatible”, allowing the use of many extension boards designed for the Arduino Deumilanove. As shipped the controller is loaded with a sketch or program that receives simple commands over the USB or RS485 serial port and switches relays or responds with the status of the analog inputs.

Multiple controllers can be connected to one or more PCs in an RS485 network. Each controller can be assigned an address and will respond to commands addressed to them.

Features:

8 Relay Outputs 5A 250VAC
8 Analog Inputs (10 bit)
Connections via Pluggable Screw Terminals
0-5V 0-3.3V or 0-20mA Analog Inputs, Jumper Selectable
5A Relay Switching
Power Indicator LED
All enclosed in Professional looking plastic case
Arduino Compatible
Accepts Arduino Shields (Ethernet / XBee)
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You might also consider these items:

DB25-pin straight through cable 3' M-F

Features:

All lines connected straight through
Use to lengthen your standard serial cable or for switch box applications
Thumbscrews to secure connectors

Quantity	Price
1 – 9	$6.75
10 – 99	$6.39
100 +	$5.86

..........................

Unregulated Wall Transformer 120VAC to 12VDC 500mA

Input voltage: 120VAC@60Hz
2-wire
Output voltage: 12VDC
Output current: 500mA
Output plug: 2.5mmID x 5.5mmOD female center positive
(BB204)

Quantity	Price
1 – 9	$13.85
10 – 99	$13.12
100 +	$12.03

..........................

Serial Isolated I/O Module (Assembled & Tested)

Quantity	Price
1 – 9	$107.56
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