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“TASK: Prototyping with the Ultrasonic Sensor”:
“Draw the Circuit Plan”: Looks to be ‘typos’. You have GPIO pins # 2, 3, 4 in the diagram instead of # 41, 45, 49.
“Making Connections:
– Diagram, you show the sensor as if the terminals have been bent 90-degrees back… and facing up. The face of the sensor has the timing crystal on the front. IF…. your terminal pins are straight….you’d turn everything around 180-degrees to have the sensor facing away from the bread board, as stated in the write up. You’d have to change up the wiring order on the breadboard to reflect that.
– Diagram, the ground wires DO NOT cross the ravine to the negative terminals of the LEDs. It looks like they were erased or something.
Hi Leo,
Yes, there are typos, the diagram should show pins 41, 45 , and 49 being used. Yes, the ground wires are not cross the ravine in the image when they should be. Both of these changes will be made.
As for the direction the Ultrasonic sensor is facing, the weighing of priorities needs to be made. No, the image is not suggesting that you need to bend the ultrasonic pins. Rather, it is trying to show you which pins connect to which rows. However, for easier connections, yes, it should be turned facing the other way. However, if we do that, then there is not a good way to show the pin labels and where they connect. I’ll consider this and try to come up with a better plan.
Thank you for your great feedback. You are helping us make a great product!
Holly Johnson
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