Designator Description Value Footprint JLCPCB Part # Link "BUTTON, RESET" Button SPST 5_1_SPST C223821 https://lcsc.com/product-detail/Tactile-Switches_Korean-Hroparts-Elec-K2-1187SQ-D4SW-06_C223821.html "C1, C2" Capacitor 10uF C0805 C15850 https://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL21A106KAYNNNE_C15850.html C11 Capacitor 1uF C0805 C28323 https://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL21B105KBFNNNE_C28323.html D4 Schottky Diode MBR120 SOD-123 C130880 https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_Shikues-MBR120LSF_C130880.html "NEO1, NEO2, NEO3, NEO4" NeoPixel (WS2812B) LEDs NEOPIXEL5050 NEOPIXEL5050 C114587 https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_Worldsemi-WS2812C_C114587.html PWR1 Power LED Red L0805 C84256 https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_Foshan-NationStar-Optoelectronics-NCD0805R1_C84256.html "R1, R24" Resistor 470 R0805 C17710 https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-0805W8F4700T5E_C17710.html R7 Resistor 10k R0805 C17414 https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-0805W8F1002T5E_C17414.html R18 Resistor 330 R0805 C17630 https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-0805W8F3300T5E_C17630.html R26 Resistor 100k R0805 C165989 https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-TC0525D1003T5E_C165989.html S1 Power Switch DPDT SWITCH_DPDT_SMD_AYZ0202 C318999 https://lcsc.com/product-detail/Slide-Switches_XKB-Connectivity-SS-3390S-L0_C318999.html U2 Analog Light Sensor ALS-PT19-315C ALS-PT19-315C C146233 https://lcsc.com/product-detail/Ambient-Light-Sensors_Everlight-Elec-ALS-PT19-315C-L177-TR8_C146233.html U3 Fixed Voltage Regulator SPX3819-3.3 SOT23-5 C51118 https://lcsc.com/product-detail/Linear-Voltage-Regulators-LDO_Diodes-Incorporated-AP2112K-3-3TRG1_C51118.html U4 ATTiny85 Microcontroller ATTINY85-S SOIC8_EIAJ_208MIL C89852 https://lcsc.com/product-detail/MICROCHIP_Microchip-Tech-ATTINY85-20SU_C89852.html OLED "128x32 Dot Matrix OLED Module with I2C interface based on SSD1306 chip " DISPLAY-OLED-128X32 DISPLAY-OLED-128X32 N/A https://www.amazon.com/MakerFocus-Display-SSD1306-3-3V-5V-Arduino/dp/B079BN2J8V P1 AVR ISP HEADER AVRISP-6 AVRISP N/A https://www.digikey.com/en/products/detail/sullins-connector-solutions/PPTC032LFBN-RC/810210 U$1 AAA Battery Pack (3 cell) AAA2 AAA2 N/A https://www.digikey.com/en/products/detail/keystone-electronics/2479/303824 U$3 SAO-1.69 Connector SAO-1.69 2X3-SHROUDED-FEMALE N/A https://www.digikey.com/en/products/detail/sullins-connector-solutions/SFH11-NBPC-D03-ST-BK/4558818