Io t introduction to electronics
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Basic introduction to electrical elements
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Io t introduction to electronics
- 1. IoTIoT IntroductionIntroduction toto ElectronicsElectronics Marian HackMan Marinov Chief System Architect of SiteGround.com <mm@1h.com>
- 2. Who am I?Who am I?
- 3. DisclaimerDisclaimer ➢ I'm not an Electrical Engineer ➢ I don't know the laws of Ohm and Kirchhoff
- 4. BooksBooks
- 5. What we will talk about?What we will talk about? ➢ Switches ➢ Relays ➢ Transistors ➢ Diodes ➢ Fuses ➢ Capacitors
- 6. Electric circuit schemeElectric circuit scheme
- 7. Real world electronicsReal world electronics ➢ Your lights
- 8. Real world electronicsReal world electronics ➢ Your lights ➢ Your TV
- 9. Real world electronicsReal world electronics ➢ Your lights ➢ Your TV ➢ Your audio system
- 10. Real world electronicsReal world electronics ➢ Your lights ➢ Your TV ➢ Your audio system ➢ Electric cooking stove
- 11. Real world electronicsReal world electronics ➢ Your lights ➢ Your TV ➢ Your audio system ➢ Electric cooking stove ➢ Water/Heating system
- 12. SwitchesSwitches Single Throw Switch(ST)Double Throw Switch(DT)
- 15. SwitchesSwitches ➢ Single Throw, Single Pole (STSP) ➢ Double Throw, Single Pole (DTSP) ➢ Single Throw, Double Pole (STDP) ➢ Double Throw, Double Pole (DTDP) ➢ Throw == Terminal STDP DTDP
- 16. RelaysRelays ➢ Separate the control circuit from the actual device
- 17. RelaysRelays ➢ Separate the control circuit from the actual device
- 18. RelaysRelays
- 19. RelaysRelays
- 20. ContactorsContactors ➢ Used for high power electronics like ➢ ovens ➢ electric sockets ➢ engines
- 21. PitfallsPitfalls ➢ Relays and contactors share a few problems ➢ Reverse voltage ➢ Sparks causing EMI/EMP
- 22. Arduino and relays?Arduino and relays?
- 24. TransistorsTransistors N Never P Points N iN N Negative P Positive N Negative P Points N iN P Permanently P Positive N Negative P Positive
- 25. TransistorsTransistors ➢ Bipolar ➢ Junction FET ➢ MOSFET (a.k.a IGBT) ➢ Unijunction FET
- 26. Arduino - transistorArduino - transistor
- 27. Transistors vs. RelaysTransistors vs. Relays TransistorTransistor RelayRelay Long-term reliabilityLong-term reliability ExcellentExcellent LimitedLimited Configurable for DP and/or DT switchingConfigurable for DP and/or DT switching NoNo YesYes Ability to switch large currentsAbility to switch large currents LimitedLimited GoodGood Able to switch ACAble to switch AC Usually notUsually not YesYes Can be triggered by ACCan be triggered by AC Usually notUsually not OptionalOptional Suitability for miniaturizationSuitability for miniaturization ExcellentExcellent Very limitedVery limited Sensitive to heatSensitive to heat HighHigh ModerateModerate Ability to switch at high speedAbility to switch at high speed ExcellentExcellent LimitedLimited Price advantage for low-voltage low-currentPrice advantage for low-voltage low-current YesYes NoNo Price advantage for high-voltage high-currentPrice advantage for high-voltage high-current NoNo YesYes Current leakage when “off”Current leakage when “off” YesYes NoNo
- 28. DiodesDiodes
- 29. DiodesDiodes
- 30. Arduino with IR diodeArduino with IR diode
- 31. FusesFuses
- 32. CapacitorsCapacitors ➢ Fast rechargeable batteries ➢ Surge protection ➢ Can be used as timers ➢ Can be used as hold the key
- 33. Ohm's Law The things you are AFRAID
- 36. Marian HackMan Marinov <mm@1h.com> hackman @ irc.freenode.net https://github.com/hackman