For this group assignment we each tested different equipment on our boards and documented our work individually. Here is a summary of what each student worked on.
For the input devices week, I am measuring the signal of one of the button in my ESP 32 board.
The button is connected to pin GPIO 4/ flash. When this button is pressed, the flash on the ESP 32 board is turned on, and the camera captures an image as explained in my Final project page.
I am using the oscilloscope to measure first the input voltage I am supplying to the board (measured to be 5 volts), and then the signal of the button as it is pressed.
For this task, I chose to use the input device for my Final project which is the Pressure Sensor BMP180. I uploaded the code and monitored the results and checked the Current and Voltage on the multimeter, and the voltage again but on oscilloscope.
The group assignment for this week is to probe an input device’s analog levels and digital signals. I chose to use the input device for my Final project which is the Potentiometer sensor. I uploaded the code and monitored the results and checked the voltage on oscilloscope. the result is shown in the below video
I’m measuring the change in the data received from the ldr going to the atmega 328p, to do that I’m using the oscilloscope to observe how the change of the environment lighting would effect the voltage sent to the atmega 328p,
It can be observed from the video that when the ldr is covered and the environment brightness is reduced the voltage sent to the atmega 328 is also decreased.