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This is a must for driving any circuits over 20mA.� TTL logic outputs from the OOPic or basic stamp, PIC, etc do not have the capacity to drive much more than an LED.� This board allows you to easily drive higher current devices.� It will drive up to 50V and 2 watts of power (1 watt per channel, but the channels can be paralleled for over 1 watt).� The circuit can handle about 500mA continuously.� The circuit also has inductive load transient suppression which occurs when driving such things as coils on relays.�

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All these High current drivers have 7 channels.� All but the basic assembled board and one relay board have status LEDs which will light with a TTL (+5VDC) logic input.� Several of the boards have relays are, which are rated at 10A@120VAC.��� An external power source is plugged into the board that drives the loads. If you use the relays, then the supply needs to be either� 5VDC or 12VDC.� The 5VDC coils will draw about 60mA each.� The 12VDC coils will draw about 37mA each.�

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If you want screw terminals as pictured, you must select that addition below, else you can solder your wires right into the holes on the PCB.

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These kits come unassembled, but you can opt for assembly if you wish.� All the components are on the top side, and the boards are spaced out to make assembly as easy as possible.� Click on the images above to view the board in detail.

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For assembly and operation instructions follow this link. (~1.2kB)

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- No Relay Board with 7 outputs and Status LEDs ($11.95)

- 1 Relay Board (5VDC coil) with 6 additional outputs ($14.95)

- 1 Relay Board (12VDC coil) with 6 additional outputs ($14.95)

- 2 Relay Board (5VDC coils) with 5 additional outputs ($21.95)
- 2 Relay Board (12VDC coils) with 5 additional outputs ($21.95)

- 4 Relay Board (5VDC coils) with 3 additional outputs ($28.95)
- 4 Relay Board (12VDC coils) with 3 additional outputs ($28.95)