Atlas
Get to know every part: what it does, where its legs go, and where mistakes happen most often. 10 categories, 65 types.
What you'll have at hand in the first lessons
Categories
11 types
ResistorsLimits current, divides voltage; some measure
Carbon film resistorMetal film resistorWire-wound resistor+8
7 types
CapacitorsStores charge, filters noise, sets timing
Ceramic discMLCCAluminum electrolytic+4
2 types
Inductors and transformersStores energy in a magnetic field and transforms AC voltage
Inductor / coilTransformer
8 types
DiodesGives current a one-way path; some produce light
Rectifier diodeSignal diodeZener diode+5
8 types
TransistorsControls a large current with a small signal
NPN BJTPNP BJTN-channel MOSFET+5
8 types
Power supplyBatteries and sources that power the circuit
AA battery9 V batteryCoin cell+5
6 types
Switches and relaysOpens and closes the circuit by hand, magnet or coil
ButtonSlide switchToggle switch+3
2 types
Protection partsOpens the line on overcurrent, limits damage
Glass fuseCircuit breaker / MCB
9 types
OutputsTurns electricity into sound, motion or numbers
Active buzzerPassive buzzerSpeaker+6
4 types
Integrated circuitsReady-made circuits in one package: timing, amplifying, logic
555 timerOp-ampLogic gate+1
Learn the zones and what the parts do on real boards.