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Jumper Links and Wires
supply 5V to the breadboard. This, however, is not intended by design – it just so happens that they work this way without being destroyed. The type of USB connector seen in the figure is a USB host connector and intended to supply 5V, rather than be supplied with 5V. It is better to always use an external power supply attached to the barrel connector.
Jumper Links and Wires
Jumper wires are needed to connect from a USB programmer/debugger to the AVR microcontroller in a breadboard circuit, as can be seen in Figure 0.5 that follows. Jumper wires with single pin male connectors on each end are an excellent choice for this purpose. These wires are usually sold as a ribbon cable of wires that can individually be peeled off. They are typically called “Dupont” cables, for example “10cm male to male Dupont jumper cable”.
Other single core jumper wires are useful for building circuits on a breadboard. Dupont cables with one male and one female connector can be used to connect from some hobby programmers to a breadboard circuit.
