Cut it, strip the wires and hook in the battery and resistor as shown. (Most cheap phone cords contain only two wires, but if the one you buy happens to have four, then use the center two.) When two people pick up the phones together, they can talk to each other just fine. This...
What you have created is a simple bulb thermometer. And it works pretty well. If you wanted to you could calibrate it, and it would tell you the temperature fairly accurately. This particular thermometer has a few problems, however: Because the working fluid is water, it cannot measure tempe...
In an early attempt I had set my system up for wakeup via pin but did not set a pull resistor and the behavior was, as you would expect, unpredictable. Since you mentioned using a Nucleo board, keep in mind that PC13 is typically connected to the "User But...
Cut it, strip the wires and hook in the battery and resistor as shown. (Most cheap phone cords contain only two wires, but if the one you buy happens to have four, then use the center two.) When two people pick up the phones together, they can talk to each other just fine. This...
terminals of the capacitor; this discharges the capacitor. If the capacitor has three terminal posts, connect the resistor to one outer terminal and the center terminal, then to the other outside terminal and the center terminal. After discharging the capacitor, you can proceed with the repairs....
allows you to use RX as a general purpose input (or another output), while still writing debug messages to Serial. Again the 330 ohm resistor in the RX lead to the Flash programmer protects against shorting out the programmer's driver. NOTE: S1 will have to be open in order to program...
I read that PSU have a line called Power Good, which outputs 5V if the PSU is working correctly. I thought it would be cool to connect an LED to this line, so I could see if everything is OK! For this I first thought of a simple LED+resistor, but then I figured this would make...
If the signal get cuts off, i have to pause (or at least stop the timer) and make the buzzer buzz (at a variable frequency but i would be happy if it even buzzes). So, what i'm here for in this forum is because i don't know how to pause the timer and i have ZERO idea ho...
1. Ensure commands refer to correct I2C addresses by checking the IDX pin. a. The IDX pin configures the control interface to one of many possible device addresses used in I2C communication. Usually for 1.8-V or 3.3-V referenced I2C I/O voltage, a pullup resistor and a pulldown resistor...
The charge has to work hard to move along, which heats up the filament, causing it to glow. In building wiring, the hot wire and the neutral wire never touch directly. The charge running through the circuit always passes through an appliance, which acts as a resistor. In this way, the...