Micropad Bill of Materials NameQuantityPart NumberPriceLink STM32F042K6U61C110616$2.72https://lcsc.com/product-detail/ST-Microelectronics_STMicroelectronics_STM32F042K6U6_STM32F042K6U6_C110616.html 0603 2.5A fus1C311073$0.03https://lcsc.com/product-detail/Surface-Mount-Fuses_AEM_T0603HI3500TM_AEM-T0603HI3500TM_C311073.html Cherry MX Switches3 LD1117-3.31C347229$0.04https://lcsc.com/product-detail/Dropout-Regulators-LDO_UMW-Youtai-Semiconductor-Co-Ltd-LD1117-3-3_C347229.html LED 08052C601702$0.02https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_TOGIALED-TJ-S2012CY8T5ALC6B-A5_C601702.html 100 ohm 08052C17408$0.002https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-0805W8F1000T5E_C17408.html USB Micro B Connector1C397452$0.02https://lcsc.com/product-detail/USB-Connectors_XKB-Connectivity-U254-051T-4BH83-F1S_C397452.html PEC11R-4015F-S0024 Rotary Encoder1C143789$1.78https://lcsc.com/product-detail/Coded-Rotary-Switches_BOURNS_PEC11R-4015F-S0024_PEC11R-4015F-S0024_C143789.html 0.1uF SMD 0805 Cap3C49678$0.0051https://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_100nF-104-10-50V_C49678.html 4.7uF SMD 0805 Cap1C92762$0.026https://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_TAIYO-YUDEN_EMK212B7475KG-T_4-7uF-475-10-16V_C92762.html 0.01uf SMD 0805 Cap2C83170$0.0045https://lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_10nF-103-10-50V_C83170.html 10k 0805 Resistor5C115295$0.0015https://lcsc.com/product-detail/Chip-Resistor-Surface-Mount_FH-Guangdong-Fenghua-Advanced-Tech-RS-05K103JT_C115295.html 5.1k 0805 Resistor2311-5.10KCRCT-ND$0.10https://www.digikey.com/en/products/detail/yageo/RC0805FR-075K1L/727988 APA102 DotStar RGB LED12343$0.45https://www.digikey.com/en/products/detail/adafruit-industries-llc/2343/5761204?s=N4IgTCBcDaIIwFYwA4C0cAsBmAbKgcgCIgC6AvkA Encoder Knob11568-1600-ND$1.50https://www.digikey.com/en/products/detail/sparkfun-electronics/COM-10001/7229870 M3 8mm length standoff4732-12828-ND$0.40https://www.amazon.com/100Pcs-Female-Threaded-Standoff-Spacer/dp/B071VLNK37/ref=sr_1_11?dchild=1&keywords=m3+8mm+standoff&qid=1608735626&s=industrial&sr=1-11 M3 5mm male-female standoff4https://www.amazon.com/Antrader-Female-Thread-Standoff-100-Pack/dp/B07K67LVFR/ref=sr_1_3?dchild=1&keywords=m3%2B8mm%2Bstandoff&qid=1608735378&s=industrial&sr=1-3&th=1 USB-C Connector1WM12856CT-ND$2.19https://www.digikey.com/en/products/detail/molex/1054500101/5843890