home
individual assignment
exploring neopixels and oled screen with the pulse monitor
i connected the pulse monitor, a strip of neopixels to a pin in the barduino and used another pin for the oled screen.
i wrote a code to simulate a series of visuals based on the pulse sensor data.
i need to test this on the bnoard that i cut
1
2
3
4
5
6
group assignment
here is the link to the group assignment page Group Assignment week 10
Reflection
This week it was about exploring various output devices & testing the way electricity moves through different output devices & actuators. Steppers are pretty consistent in different operating conditions. Motors show a slight increase with load. DC servo on the other hand vary greatly when in use & when not in use & when load is added.
My contribution this week was to assemble the electronics to a power source & use a multimeter to record power consumption at various states. Motors often need a MOSFET if they are bigger to regulate the currents backward flow after it’s been turned off.
The dynamic power consumption difference between the motors dictates its purpose & functionality. I had some fun surprises while setting up the multimeter. While setting up the multimeter, there were some whirring sounds in the power supply when the multimeter was set to a lower sensitivity and when it was connected in parallel.
Using a regulated power supply was fun as well. The current needed & the voltage determine the power.
P = V × I
The current spikes highlighted the importance of a flyback diode for protecting from the backflow of energy.
It is important to individually test & understand the components we use. The power calculation is crucial to a complete functional & safe circuit. Each electronic has a life & mind of its own. Components wear with time & load, especially motors. They have a wide range of uses & options for any function. Design reliable electronic systems & be very very careful with power supplies especially AC.
notes
Put your notes here.