itp-blog

Week 4

I tried to read Chapter 3 of Energy. I did skim through the first few pages. It is dry.

I received a large motor in the mail.

The gear produces so much torque that I have to crank it with pliers.

This is a gif in which I use the motor to light up the LED on a Feather M0 with LoRa (briefly)

Open Circuit Voltage: 4-7 V

Short Circuit Current: .7-1.0 A

LED

The voltage regulator is for 3.3 V but the voltage that comes out of the voltage regulator is 3.27 V (not 3.3 V exactly).

I cannot get the Feather M0 to light up (consistently) at the moment, probably for the same reason that I struggle to program it.

When I plug in the Feather M0 to my computer, it blinks and fades quickly. At first, I thought the board was dead.

Feather M0 blink then fade

I have to click the reset button twice to turn on the board while it is plugged into my laptop. Feather M0 blinking

I decided to try the Arduino Nano 33 IoT instead. Predictably, the board powered on without issue. Nano 33 IoT consistent blinking

I measured the open circuit voltage as 3.28 V. cranking, multimeter, dimly lit hallway

The short circuit current seems to range from ~.6-.9 A. cranking, multimeter, dimly lit hallway