Robot Building for Beginners, Third Edition

CHAPTER 13 ■ SOLDERLESS BREADBOARD SETUP

To determine if the top rows are properly connected to the battery’s power, use a wire on each
multimeter probe to check the voltage of the top two rows (see Figure 13-8). Flip the switch back and forth to
see that the voltage changes from zero to full (approximately 9 V).

Figure 13-7. Multimeter probes with hook adaptors holding a reinforced jumper wire

Figure 13-8. Testing the voltage of the upper bus using probes hooked to jumper wire