Qty per PCB Total Qty for class Value Device Package Parts Description 1 24 PTH 2032 holder BATTERYCR2032 CR2032 B1 CR1220 SMT - Digikey: 3001K-ND 1 24 ATMEGA328P IC_UC_ATMEGA328PDIL DIL28-N IC1 Microcontroller 1 24 Red LED LED5MM LED5MM PWR LED 1 24 Blue LED LED5MM LED5MM D13 LED 1 24 32.768MHz OSC-XTALTC-26 TC-26 XTAL2 32.768MHz clock xtal for DS1307 2 48 Right Angle PINHD-1X1 1X01 "GND, VCC" "Pin header 1x1 for 0.1 spacing""" 1 24 Right Angle PINHD-1X20-BIG 1X20-BIG JP1 PIN HEADER 1 24 Right Angle PINHD-1X6 1X06 SERIAL_PRG PIN HEADER 6 144 0.1uF C-US050-025X075 C050-025X075 "C4, C5, C6, C7, C8, C9" "CAPACITOR, American symbol" 1 24 0.33uF C-US050-025X075 C050-025X075 C3 "CAPACITOR, American symbol" 1 24 100R R-US_0207/10 0207/10 R2 "RESISTOR, American symbol" 1 24 10K R-US_0207/10 0207/10 R3 "RESISTOR, American symbol" 1 24 16MHz OSC-XTAL-HC-49U-PTH HC-49U-PTH XTAL1 External clock for Microcontroller 1 24 2.1MMJACKTHM 2.1MMJACKTHM PJ-102A U$1 "2.1mm x 5.5mm THM DC jack with internal switch. Digikey part #PJ-102A, 4UCON part #05537" 1 24 220R R-US_0207/10 0207/10 R1 "RESISTOR, American symbol" 2 48 22pF C-US050-025X075 C050-025X075 "C1, C2" "CAPACITOR, American symbol" 2 48 4K7 R-US_0207/10 0207/10 "R4, R5" "RESISTOR, American symbol" 1 24 7805T 7805T TO220H IC2 Positive VOLTAGE REGULATOR 1 24 "Straight 2x3 .1"" header" PINHD-2X3 AVRISP ISP1 AVR ISP HEADER 1 24 DS1307 DS1307 DIL08 IC4 DS1307 1 24 LM358 LM358 DIP08 IC6 Jellybean op-amp 1 24 PTH SWITCH-MOMENTARY-2PTH TACTILE-PTH S1 "Various NO switches- pushbuttons, reed, etc"