The ULN2803 Switch Board is an accessory board that allows the control of much higher voltages and currents.
The board consists of a ULN 2803 and Blue LED indicator setup to indicate which channels are currently active.
ULN2803 Switch Board consists of 8-bit TTL-input NPN Darlington sink drivers. Each Darlington driver can handle a maximum of 500mA continuous (when using a single channel only)
and can withstand a maximum of 50V in its off state. This makes the ULN2803 well suited to provide an interface between the low logic level interfaces and higher current/voltage
devices such as relays, solenoids, motors and lamps.
The connections to the board are by screw terminals that will accept cables 0.5 – 2mm
The connection between the I/O24 module and the ULN2803 switchboard is via a 30 cm.
IDC connection cable provided with the board.
1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor.
Tempero Systems offers many custom IoT electronic design services to help tailor our product to your exact needs. Whether you are looking for custom firmware, circuit board modifications, metal enclosures, or industrial color printing, we can help you with a wide variety of design services.