Wednesday, August 30, 2017

LED Throwies

LED Throwies

How to make a Throwie?

* First you need materials:

1. CR 2032 3V battery
2. Electrical tape
3. LED
4. Neo Diem Rare Earth Magnet

Then you need to find the anode on the LED and it should be touching the positive side of the battery. Next, you need to place the magnet on (flat side of the battery) positive side of the battery and wrap the electrical tape around it all. Eureka! You have a throwie. 





Components Part One/Two

Components Part One/Two


Components Part Two
  • Potentiometers/ rheostats/presets
  • new-electronics-slides-15-638.jpg

  • wiper.gif


  • Rheostat:
  • rhoestat.png





Transistors:
Not pointing In: NPN
bopilar-junction-transistor-bjt-schematic-diagram.png
Emitter
Collector
Base
Pay attention to data sheets; connect….

main-qimg-2600765504469105b4db7229c1da501c.gif

emitter.png

Use alligator clips to help distribute heat…

Sound/noise
Loudspeaker
Piezo transducer
Buzzers, beepers
Piezo Sticking Details.png
buzzer.jpg
Diodes
diodes.gif
800px_diode_3d_and_ckt.png





Fancy Resistors
LDR
LDR.jpg
Electricity

Fundamentally, Positive and Negative….the flow of a charge...the electrons are moving…
What makes an electrical charge flow is the atomic phenomenon:

Electron Flow
electron flow.jpg
You Tube:
The energetic world: what we can see a stable piece of material we can see the atoms moving.

electricity_flows_in_wire.gif

insulators.jpg
conductor.jpg
It should be considered as a spectrum of values better conductors or less conductors as an example: High enough electrical current can force through something normally considered an insulator (opposite is true too)

common conductors.jpg







Ground:
High potential energy moves to Low Potential Energy
ground diagram.png

Circuit


Needs a Load...or it will short circuit (spark)
circuit.jpg


Ohms Law

Ohms-Law-Formula-Wheel.png
I =V/R
?=9/.01
900 Amps!! That's what a 9V battery can generate…

Open Circuit Diagram

open circuit.png
Pay attention to conduction...if the circuit is open then there is no power…
Circuit - usually refers to the setup of a continuous path for electricity and current.

Check the power...This is the first step to problem solving a failure in a project.

UPGRADE YOUR WETWARE CONCEPTS

UPGRADE YOUR WETWARE

CONCEPTS PHASE 1

This will be a wearable shirt that expresses your feeling without saying a word. This shirt can also be changed depending on your mood with embedded LED and an Arduino Board.

This backpack will be away to advertise thoughts, feelings, political agendas or commercialization. This backpack can also be changed depending on your agenda with embedded LED and an Arduino Board.
This baseball cap will be away to share your current thoughts. This cap can also be changed depending on your thoughts or concern for the day with embedded LED and an Arduino Board.

Monday, August 28, 2017

Components Part One

We watched a video about artist Mathias Hasard: pendulaire #5….he uses sensors and a pendulum on a swing to create different sounds….

Components Part One: There are 4-6 concepts….

Components used to constructively push electricity to do work…
Complex organ… to control resistance, currents, voltages..

Symbols: symbols reference I symbol ref 2: LM 55 to amplify sound, used to make a timer…
The different shapes are all different components…
This is a conceptual schematic…
Ex: 8 pin chip
Trigger, Output, Threshold, discharge

Websites used:

Components come in two types; through hole or surface mount technology
  • Through hole- older tech legs pass through a board
  • Surface mount is applied directly to the board: SMT
  • (we use through hole)- PTH
  • Component: PCB: Pad: Lead: Solder side

How do I know what voltage, components to get:
  • Data sheets: LM555 Timer
  • Max Voltage/ Minimum
  • Data sheets provides requirements

Battery
  • Supply DC
  • Come in a variety of voltages(V), ampere-hours(Ah)
  • Battery schematics: negative/ positive  
  •    -  +
  • o---I |---o
  • o---I I|---o
  • Supply and ground
  • Supply typically are facing the sky: vcc...etc
  • Ground typically are facing down: GND (OV) ground symbols: low potential

Switch
  • They open and close circuits
  • To connect the power
  • Toggle is broken
  • Many switches have multiple holds and throws,
  • Temporary…
  • Open: off position: draw bridge: contacts are not conducting
  • Closed: on position
  • Momentary: switches returns to its normal position when released
  • Latching: it stays into position until forced to change…
  • SPST, SPDT,

Resistors
  • Control currents ( see Ohms Law)
  • Other forms: 10W, 15W, 20W
  • Heat caused when using resistance
  • Measured in Ohms
  • Use the omega as symbol
  • Common values and multipliers
    • Kiloohm (thousands) k
    • Megaohm (millions) M
    • Resistor banding system:
  • resistor-color-chart.jpg
  • Always test with multi-meter


Capacitors
  • They hold and discharges electricity….only a set amount...ex: change a jumpy to a smooth
  • Comes in different shapes and sizes
  • They hold a lot of electricty and can be dangerous
  • Provide a boost current, deliver a large burst of energy
  • Metaphor of a battery or storage bucket
  • Capacitance is measured in Farads---Michael Faraday
  • If you ever need to handle a larger cap you can discharge it using an tool with an insulated handle such as a screwdriver.
  • Carefully lay the conductive section across the two poles making sure your hands are not touching the capacitor…
  • Common values found in small electronics
  • picoFarads- trillonth-pf
  • nanoFarads - billonth-nf
  • microFarads- millionth-uf
  • Can be polarized or non polarized, tantalum, electrolytic
  • SI+prefixes+micro++nano+n+pico+p+name+symbol+meaning.jpg

  • ---|C---
LED’s
  • light emitting diodes
  • Anode (+) and Cathode(-)
  • Flat spot (typically negative side)
  • All diodes are polar: one way valve for electricity
  • Anvil : is larger than the post (Cathode side)
  • Post: is smaller (Anode +)
  • Reversing component will turn the electricity off
  • Anode =2 photons are emitted= Cathode

IC’s

  • First intergrated circuists appear in the 41920’s
  • Dead bug design…
  • Different number of pins
  • Amplifiers: ex: 555= ground, trigger, output, reset, power supply (VCC), discharge, threshold, control Voltage,
  • Usually has a divot that is the upside you can start at the top left as (1) and then you count around...