- Soldering is more robust
- IC: Legs go on different row, middle.
Wednesday, August 29, 2018
Poster Body Upgrade
!!Due Printed on 10Sep18!!
- What upgrade would I like for my body?
- Can be an advertisement/schematic
- Single one page graphice
- Save also as jpeg and upload to blog
- Lotus of the Borg
- Steve Austin
- This Android is definitely not dream of Electric Sheep
What is a circuit?
- Conductive path, electrical current runs on
- Short circuit, there must be a load, infinite current, short out a connection from the highest to the lowest potential
- Open circuit, there's something broken, breaks in the path.
- Fritzing Software: can use for project documentation
- Bread board
- Rails: red is positive
- Ground (GND) negative (electron lead) is usually black. Does not have to be black.
- T package
- red, yellow, green 3v 20mA
- Reason for resistor is to reduce the current
- LED's almost aways need a resistor
- All diodes are polar, reversing component kills current in circuit, the orientation matters
- Ground first
- Resistors do not have polarity
- Make sure LED is facing the right direction
Take supplies, make throwies, take picture
Monday, August 27, 2018
- Artist who like to use microcomputers/controllers to create media
- Materials share electrons
- Two types of electricity- DC- direct current (one direction) - AC- alternating current
- Electrons move from atom to atom-charges rippling along a route (wire) a current
- Conductors/insulators (metallics)- electrons induce friction as they move along. all materials have resistance. it can be low to high depending on the atoms in the material. Conductors have lower resistances, insulators have high resistances
- 6.25x10 to 18 per second
- 1 Amp of current
- Conductors: silver, copper, gold, aluminum, iron, steel, brass, bronze, mercury, graphite, dirty water, concrete
- Insulators: glass, rubber, oil, asphalt, fiberglass, porcelain, ceramic quart, (dry) cotton, (dry) , (dry) wood, plastic, air, diamond
- Resistance is less in a thicker wire. Thicker the wire more amps it can handle.
- Resistance is usually around .01 ohms.
- ?=9/.01= 900 Amps
- Amperage, resistance and voltage have a relationship- Ohms Law
- Never correct ground to power directly
- the lesson is that you never want to connect power directly to ground
- there should always be a 'load' on the circuit.
- Conduction junction!
- So the water analogy is helpful because it helps us understand/visualize conduction of electrons through a wire.
- In order to build circuits you will need to be able to read a circuit diagram.
- components used to constructively push electricity to do work
- complex organizations to control resistance, currents
- General types of components
- two types of components: through hole or surface mount technology
- through-hole vs. surface mount
- Data sheets: every component has a data sheet.
- batteries are a store of electrical portential
- supply Direct Current DC
- Come in a variety of voltages (V) and capacities known as Ampere-Hours(AH)
- Battery Schematics
- Supply and ground schematics
- a connection of two points
- Open-off position, contacts not conducting
- Closed-on position, contacts conducting, there may be several on positions
- control currents (see Ohm's Law)
- measured in Ohms
- Use omega as symbol Ω
- Common values and multipliers. Kiloohm (thousands) kΩ megaohm (millions) MΩ
- Resistors app calculator
- Capacitors (caps) come in variety of forms and materials
- caps store an amount of electrical potential to provide a boost current, deliver a large burst of energy
- if you ever need to handle a larger cap you can discharge it using a 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 surface.
- common values found in small electronics. picoFarads (trillionths)-pF - nanoFarads nF microFarads mF
- Free Instructables account
- Portable hard drive to save work. 2-3 year life span
- Reading Materials
- Gather tools, keep in tool bag
- Soldering Iron 25-40 Watts
- Wire strippers, at least 30 gauge
- Safety Glasses
- Head lamp
- Class can be repeated
- Hands on learning
- Let know ahead of time about critique day absents
- Give credit where credit is do, avoid plagiarism
- Closed toed shoes
Create Drive and Blogger, share with Professor
Blog is virtual sketchbook