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> Serial relay output / opto input ( basic stamp, picaxe)
Serial relay output / opto input ( basic stamp, picaxe)
This is a fully assembled unit that may be controlled by a Basic Stamp 2, BasicX BX24 or PICAXE or similar (2400 baud, 8 data bit, no parity, no flow control).
It provides four form C relays (15A / 120 VAC, 10A / 240 VAC, 15 A / 24 VDC) with a three position screw type connector for each relay. An LED is provided for each relay such that the user may visually observe the state of the relay.
Further, it provides four optoisolators, each with a two position screw type connector and LED.
The serial interface will accommodate TTL (5.0 and GRD) levels. That is, the BS2, BX24 or PICAXE may be directly interfaced with the IO Module with no intermediate circuitry.
The PCB is professionally fabricated.
The module includes a female DB9 connector, an on-board 5 VDC supply, a programmed Microchip PIC processor, four relays and associated driver transistors and LEDs and terminal blocks, four 4N37 optoisolators and associated LEDs and terminal blocks.
A separate LED is provided which blips one time nominally every ten seconds when idle to indicate the unit is alive and blips multiple times when a command is received from the controlling.
The unit is mounted on four 0.5 inch nylon standoffs.
The unit includes a coaxial power connector which will accommodate a 9 - 12VDC (2.1mmID x 5.5mmOD female center positive) wall power unit and compatible 120 VAC wall power unit.
A DB9M connector with three leads to interface with the controlling processor is also included. The leads are about 24 inches long. .
For additional information and sample Basic Stamp 2 and PICAXE programs, click here.
* Australia, New Zealand - $5.00. (No wall power unit).
