Versatile 16F88 PICmicro	4MHz clock (standard)
Various I/O options	runs from 12V DC
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Info - Connections - Prices
GPC_8A GP Module open (LED flasher configuration) GPC_8A GP Module enclosed (LED flasher configuration)

Contents General module details LED Flasher module   General Module Details The GPC_8A is a general purpose control or interface module. It can be programmed to perform a range of logic control or interfacing functions requiring specific sequences, checks or timing. Features: small size operates from 12V DC six general purpose inputs two relay or LED driver outputs ideal for interfacing and control can perform quite complex logic functions we can program it to suit specific requirements   A bit more TECHNICAL Additional details: PIC16F88 microcontroller on-board operates from 9 to 15 Volts DC current draw depends on application but typically 15 to 20 mA communications port available for more complex functions all connections via 16 miniature screw terminals on-board LED operation/status indicator cane be supplied with 2 miniature relay outputs or two driver outputs driver output option can directly drive LED indicators We can program the module to perform specific functions. Email with requirements for more information.   CONFIGURATIONS We can supply the module in a number of configurations: Just a hardware module with an assembly code (open source) software base that supports real time functions and serial input/output. You can build your own application onto the supplied software base or do your own hing from scratch. You will need to have some programming experience or be prepared to do some study (not for the feignt hearted). As a preconfigured module ready to go. If we've done it before, it's no trouble to load it up before sending it out. email if you have a specific requirement.  As a preconfigured module ready to go, but with a configuration that we haven't done before. This involves more work so it costs a bit more. Building on our existing software foundation is not that difficult, provided your required application is not too complex. email if you have a specific requirement   CONNECTIONS Terminal connections; input end: +12V power supply 0V common for power supply Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Terminal connections; output end: Aux_1 or communications connection Aux_2 or communications connection 0V common Output B (-) Output B (+) Output A (+) Output A (-) 0V common Notes: Aux_1 and Aux_2 are normally reserved for a communications port. Outputs A and B can be clean normally-open relay contacts or driver outputs. Driver outputs are normally configured to directly drive LED indicators but can also be configured to drive external relays or other devices up to about 75mA at 12V DC. The 0V Common connections can be used with the Inputs 1 to 6 or Aux_1 or 2

LED Flasher Module This is a specific LED flasher function using the GPC_8A general purpose controller module. It provides six inputs and directly drives two LEDs which are controlled by the inputs and flashed at two different rates. Features: small size operates from 12V DC six inputs control LED flashing two LED driver outputs (resistors are on-board) LED-A flashes at a rate of 2 pulses per second (0.25 seconds on/off) LED-A flashes at a rate of 1 pulse per second (0.5 seconds on/off) Connect one or two LEDs and a 12V power source. The normally-open connections, if not used will have to be connected to a 0V common terminal (deactivated). Switching one of the normally-open terminals to 0V common will start the appropriate LED flashing. Input 5 is a normally open input that will start both LEDs flashing. Input 6 is a normally open input that will inhibit (stop) both LEDs. This can be use as a master on/off control and takes priority over all other inputs. Both N.O. and N.C. inputs and Input 5 must be inactive to stop an LED flashing. You can wire inputs together to switch them from the same source. The LED - connections can also be connected together for additional effects. We can provide variations on this operation. Email with requirements for more information.   CONNECTIONS Terminal connections; input end: +12V power supply 0V common for power supply Input 1 = normally open, flash LED A at 2 pulses per second Input 2 = normally closed, flash LED A at 2 pulses per second Input 3 = normally open, flash LED A at 1 pulse per second Input 4 = normally closed, flash LED A at 1 pulse per second Input 5 = normally open, flash LEDs A and B at their defined rates Input 6 = normally open, inhibit both LEDs. (prevents flashing) Terminal connections; output end: not used not used 0V common LED B (-) LED B (+) LED A (+) LED A (-) 0V common Notes: No resistors are required with the LEDs (resistors are on-board). Inputs are switched to 0V common to activate. Normally closed inputs must be connected to 0V common to de-activate (prevent flashing).

LED Flasher Configuration

GPC_8A Flasher enclosed GPC_8A Flasher both ends, open and enclosed

Module	Connector	part number	1 to 9	10 to 49	50 up
Basic Module (no program) includes 20MHz PIC16F88	.	GPC8A2A	$45.00	$39.00	email
Configured Module . pre-loaded with a specific existing function	.	GPC8A2B	$55.00	$49.00	email
Configured Module . pre-loaded with a new specific function	.	GPC8A2B	$100.00 typical email	-10% approx. email	email

Files available for Download
schematic diagram (pdf)	......	.......
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last updated: 09 February 2005