Learn with Mxy
Learn with Mxy
  • Видео 18
  • Просмотров 3 110
Astable Multivibrator Step-by-Step - Blinking LED - Beginner Learns Electronics Ep 13 - RC Circuits
Let's make some LED's blink! Supposedly the "hello world" of electronics, the astable multivibrator seems a bit too complicated for me to give it that name, but let's give it a shot!
Schematic Credit: www.electronics-tutorials.ws/waveforms/astable.html
00:00 Starting Build
00:18 Adding Resistors
00:38 Adding Transistors
05:36 Adding Capacitors
08:44 Adding LED Outputs
09:20 First Try (FAIL)
11:10 Second Try (SUCCESS!)
11:36 PEW PEW PEW
12:17 How to read capacitor on oscilloscope
13:20 How to Slow Down LED Blinking
14:20 Trying to understand what's happening
Transistors being used here: 2N3904 (NPN BJT)
1K / 1,000ohm resistors
10K / 10,000 ohm resistors
Basic LED's (forward voltage drop ~1.8V)
Power source...
Просмотров: 18

Видео

Binary Negative Numbers - Step-by-Step - Signed Magnitude, One's Complement, Two's ComplementBinary Negative Numbers - Step-by-Step - Signed Magnitude, One's Complement, Two's Complement
Binary Negative Numbers - Step-by-Step - Signed Magnitude, One's Complement, Two's Complement
Просмотров 14День назад
00:00 3 Systems 00:25 Unsigned vs Signed Values 02:48 Signed Magnitude System 12:16 One's Complement System 18:46 Two's Complement System (Modern System) These are historically the most common ways of writing negative numbers using binary. It's important to highlight that we only 'care' if there are negative numbers, if we know that the data contains signed numbers. It's all based on the contex...
Beginner Tests Capacitor Charge Time - RC Circuits - Beginner Learns Electronics Ep12Beginner Tests Capacitor Charge Time - RC Circuits - Beginner Learns Electronics Ep12
Beginner Tests Capacitor Charge Time - RC Circuits - Beginner Learns Electronics Ep12
Просмотров 2104 дня назад
How long do capacitors take to charge? Seems like an important thing to know, so I try to test it out to varying degrees of success. Thanks to @jbeckva499 for explaining a lot of things! 00:00 Capacitors Part 2 00:15 How to calculate capacitor charge time 03:25 How to discharge a capacitor 03:57 Building Circuit 07:56 Measuring capacitor charge time 12:55 How capacitors charge over time 18:48 B...
Beginner Tests Capacitors (Fading LED) Beginner Learns Electronics Ep11 - How Capacitors WorkBeginner Tests Capacitors (Fading LED) Beginner Learns Electronics Ep11 - How Capacitors Work
Beginner Tests Capacitors (Fading LED) Beginner Learns Electronics Ep11 - How Capacitors Work
Просмотров 2467 дней назад
Instead of an LED turning off right away, we try to fade it out using a capacitor. I fail at first by putting the capacitor in series, but ultimately utilize a schematic and place the capacitor in parallel for a successful circuit! I didn't know that capacitors stop current when in series, upon reaching full charge. I will follow this video up soon with a part 2 when I do some research on the m...
Beginner Tests Diodes - Beginner Learns Electronics Ep10Beginner Tests Diodes - Beginner Learns Electronics Ep10
Beginner Tests Diodes - Beginner Learns Electronics Ep10
Просмотров 48411 дней назад
Take a quick look at diodes, and test their effect. They only allow current to flow one way, which makes it very useful when you need to prevent current from flowing backwards, or to pick up current that is only flowing in the 'forward' direction. 00:00 Looking at the diode 01:20 Testing a circuit with a diode 01:50 Orienting the diode in the correct direction 02:00 How to know which way to pla...
Resistance Step-by-Step - Beginner Reviews ElectronicsResistance Step-by-Step - Beginner Reviews Electronics
Resistance Step-by-Step - Beginner Reviews Electronics
Просмотров 24712 дней назад
Resistance helps protect components, as well as direct the flow of current. I do some practical examples and test circuits here to further my own experience and (hopefully!) illustrate some key concepts. 00:00 Let's use resistance to safely light an LED 00:22 What is an amp? 00:52 What is a milliamp (mA)? 01:20 How to read a power supply 02:55 What are ohms? 04:30 How to calculate current from ...
XOR Gate Step-by-Step - Beginner FAILS then Learns Electronics Ep9 - Logic Gates for BeginnersXOR Gate Step-by-Step - Beginner FAILS then Learns Electronics Ep9 - Logic Gates for Beginners
XOR Gate Step-by-Step - Beginner FAILS then Learns Electronics Ep9 - Logic Gates for Beginners
Просмотров 25214 дней назад
Behold the XOR Gate! It was more difficult than I initially thought. Combining the OR gate and the NAND gate into an AND gate created issues for me as I wasn't properly controlling the current / flow of electricity. This was by far the lesson that showed me how important resistance is in "tuning" a circuit. In this video I cover XOR theory, then plan the circuit, build the circuit, fail, test, ...
AND Gate from NAND - Step-by-Step - Beginner Learns Electronics E8 - NPN Transistor Logic GatesAND Gate from NAND - Step-by-Step - Beginner Learns Electronics E8 - NPN Transistor Logic Gates
AND Gate from NAND - Step-by-Step - Beginner Learns Electronics E8 - NPN Transistor Logic Gates
Просмотров 10618 дней назад
Resistors: 1k ohm (1000 ohm) Transistors: NPN 2N3904 00:00 Gameplan 00:45 Start Building NAND Gate 01:45 Adding NPN Transistors 02:55 Adding buttons 05:38 How NAND Gate Works 06:10 Testing NAND Gate 07:54 Adding Inverter LED Output 10:05 Adding Inverter 2N3904 Transistor 11:15 Connecting NAND output to Inverter Input 12:33 MISTAKE realization 13:21 (FAIL) Test, Mistake Confirmed 13:36 Figuring ...
NAND Gate Step-by-Step - Beginner Learns Electronics Ep 7 - Logic Gates with NPN TransistorsNAND Gate Step-by-Step - Beginner Learns Electronics Ep 7 - Logic Gates with NPN Transistors
NAND Gate Step-by-Step - Beginner Learns Electronics Ep 7 - Logic Gates with NPN Transistors
Просмотров 47121 день назад
Resistors: 1k Transistors: 2N3904 NPN 00:00 The plan! 00:34 Modeling the NOT/NOR Schematic 01:20 Starting with Buttons for NAND Gate 02:15 Using 2N3904 Transistors 04:15 Adding LED Output 05:30 Walkthrough & Test 06:50 Proofing with Truth Table 08:31 NAND Gate vs AND Gate The NAND gate for me feels so solid compared to the AND gate. Two 2N3904 transistors, when activated, provide a path to grou...
Beginner Makes AND Gate - Step-by-Step Logic Gates with NPN TransistorsBeginner Makes AND Gate - Step-by-Step Logic Gates with NPN Transistors
Beginner Makes AND Gate - Step-by-Step Logic Gates with NPN Transistors
Просмотров 23325 дней назад
An AND gate is made up of two transistors in series. They both depend on each other to complete the circuit, and are controlled by separate switches. The only part that's not clear for me at this point is how to use the output from the AND gate that I made. Using 2N3904 transistors here, with 3V power supply and 1Kohm resistors. I was hoping my first AND gate would work, because I could envisio...
Beginner FAILS, then Learns, to Make Inverter / NOT Gate & NOR Gate - How to Make an InverterBeginner FAILS, then Learns, to Make Inverter / NOT Gate & NOR Gate - How to Make an Inverter
Beginner FAILS, then Learns, to Make Inverter / NOT Gate & NOR Gate - How to Make an Inverter
Просмотров 20328 дней назад
Schematic Credit: www.gsnetwork.com/ 00:00 Difference between OR gate and NOR gate. 02:48 Failing at making NOT Gate / Inverter 10:39 Online research to find schematic 16:10 Analyzing NOT Gate schematic 24:35 Building NOT Gate from schematic 35:20 Testing NOT Gate / Inverter 39:25 Turning NOT Gate into NOR Gate 48:30 Trying to add output to previous OR gate OR gates and NOR gates are so much cl...
How Binary Works - How to Read/Write the 1's & 0's with ExamplesHow Binary Works - How to Read/Write the 1's & 0's with Examples
How Binary Works - How to Read/Write the 1's & 0's with Examples
Просмотров 27Месяц назад
The basics on how to read (and write) binary. There's a mistake in here with my example of 65 there's a missing zero. I guess that just shows how binary is more prone to errors for us humans.
Make a Simple LED Circuit - Step-by-Step - Beginner ElectronicsMake a Simple LED Circuit - Step-by-Step - Beginner Electronics
Make a Simple LED Circuit - Step-by-Step - Beginner Electronics
Просмотров 29Месяц назад
Making a simple LED circuit is the first thing I did when learning beginner electronics. The LED lets you know if you did it right (by lighting up), so it's the perfect start. I'm a beginner in electronics myself, and I'm live-recording everything I do as I try to learn. Everything I do is on breadboards, which make it really easy to adapt and change things on the go. If you're also a beginner ...
Beginner Learns How Logic Gates Work & Builds OR Gate - Step-by - Beginner Electronics Logic GatesBeginner Learns How Logic Gates Work & Builds OR Gate - Step-by - Beginner Electronics Logic Gates
Beginner Learns How Logic Gates Work & Builds OR Gate - Step-by - Beginner Electronics Logic Gates
Просмотров 38Месяц назад
I know how logic gates work, but not (really) how to build them. In this case, I was able to get the OR gate working on my own, but the others are much more challenging for me. I hope it helps you if you need to learn how logic gates work, or to get an idea of the logic gate truth tables and how they all work together. It's incredible to think that all processing, calculations, and data access,...
Beginner Fails (Then Learns!) to Measure Voltage & Current - Step-by-Step Beginner ElectronicsBeginner Fails (Then Learns!) to Measure Voltage & Current - Step-by-Step Beginner Electronics
Beginner Fails (Then Learns!) to Measure Voltage & Current - Step-by-Step Beginner Electronics
Просмотров 227Месяц назад
I finally learned how to measure voltage and current. I had to look up help online, as well as get help from a generous friend. The main key is voltage is measured in parallel, while current is measured in series. Good to know!