As the end (final presentation) approaches, our PS9888 Making and Tinkering journey reaches its final climax. In the last week before the end, I’ll be tying up the loose ends in this blog, updating the pages that have been neglected, and anything else I remember.
The last time we went down to the MnT lab (30 Sept), we reprinted the servo motor attachment to make it thicker, and took a final video of us controlling our fan attachment. The video can be found below.
Final thoughts:
RPi power consumption is about 2-5W. When activated, our circuit draws a maximum of 8W. Combining those two, using a 20000mAh power bank, which has a capacity of 100Wh (5V output), the RPi can remain on for 50 hours (standby) and if the stepper motor is made to continuously move up and down, the setup will last for around 6 hours. Assuming a normal usage of the fan (turn on and off no more than 5 times in a day), the setup should last for at least 1 day before the power bank has to be replaced and charged.