This arduino uno r3 starter kitset contains:
the uno r3 board
stepper motor
stepper motor driver
mercury battery holder
servo motor
lcd display
jumping wires
potentiometer
wireless remote
solderless board
led (green, yellow, and red)
resistors
transistor (1)
ir sender and receiver (1 each)
ldr (×3)
ics (sn74hc595n or shift register)
buzzers (active and passive)
button switches (×5)
capacitors (×2)
led display (4-digit, 7-segment each and single-digit, 7-segment)
8x8 led dot matrix display module
power relay (single-pole double-throw (spdt))
smoke sensor
noise sensor
rfid module
joystick
4x4 buttons
water sensor
rgb led