Самодельные часы на Ардуино (Atmega328)

Как собрать часы на семисегментных индикаторах, в основе проекта микроконтроллер amega(arduino). Архив проекта - https://yadi.sk/d/v2qegPa13TW4wN atmega 328 - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2F10pcs-lot-free-shipping-ATMEGA328P-PU-DIP28-100-new-Original-Quality-Assurance%2F2033373721.html%3Fspm%3D2114.03010208.3.9.G5STCg%26ws_ab_test%3Dsearchweb0_0%2Csearchweb201602_3_10152_10065_10151_10068_10084_10083_10080_10082_10081_10301_10110_10136_10137_10111_519_10060_10112_10155_10113_10114_437_10154_10056_10055_10054_10182_10059_303_100031_10099_10078_10079_10103_10073_10102_10169_10052_10127_10053_10142_10107_142_10050_10125_10051%2Csearchweb201603_49%2CppcSwitch_4%26btsid%3D2db69bee-4f04-42f1-b95d-4bf856c0460e%26algo_expid%3D71c0a3ae-3dc1-4dae-88e2-9ba0f2ec42fb-4%26algo_pvid%3D71c0a3ae-3dc1-4dae-88e2-9ba0f2ec42fb ds1307 - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2FFree-Shipping-10PCS-DS1307-DIP-8-1307-64-x-8-Serial-I2C-Real-Time-Clock-IC%2F2040358158.html%3Fspm%3D2114.03010208.3.2.WKDdsj%26ws_ab_test%3Dsearchweb0_0%2Csearchweb201602_3_10152_10065_10151_10068_10084_10083_10119_10080_10082_10081_10301_10110_10136_10137_519_10111_10060_10112_10155_10113_10114_437_10154_10056_10055_10054_10182_10059_303_100031_10099_10078_10079_10103_10073_10102_10169_10120_10052_10127_10053_10142_10107_142_10050_10125_10051-10120%2Csearchweb201603_49%2CppcSwitch_4%26btsid%3D00677fd4-5c17-4b42-84bb-ecc169e0293d%26algo_expid%3D0e9b091e-ace5-4408-9740-c941c268f256-0%26algo_pvid%3D0e9b091e-ace5-4408-9740-c941c268f256 ds18b20 - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2FFree-shipping-with-tracking-NO-10pcs-lot-DS18B20-TO-92%2F32510348570.html%3Fspm%3D2114.03010208.3.58.y1p4dR%26ws_ab_test%3Dsearchweb0_0%2Csearchweb201602_3_10152_10065_10151_10068_10084_10083_10119_10080_10082_10081_10301_10110_10136_10137_519_10111_10060_10112_10155_10113_10114_437_10154_10056_10055_10054_10182_10059_303_100031_10099_10078_10079_10103_10073_10102_10169_10120_10052_10127_10053_10142_10107_142_10050_10125_10051%2Csearchweb201603_49%2CppcSwitch_4%26btsid%3D2b8b27da-a703-4d46-9f96-a91b48927c0e%26algo_expid%3Dbc7680ad-afbe-41b9-bd90-c1334ee1fbe8-7%26algo_pvid%3Dbc7680ad-afbe-41b9-bd90-c1334ee1fbe8 Набор 7 сегментных индикаторов - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2F5PCS-1-8-inch-1-digit-Blue-Led-display-7-segment-Common-cathode%2F32554203224.html%3Fshortkey%3DzENbuqUN%26addresstype%3D600 Повышающий DCDC MT3608 - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2F5pcs-lot-MT3608-DC-DC-Adjustable-Boost-Module-2A-Boost-Step-Up-Module-with-MICRO-USB%2F32834245300.html%3Fws_ab_test%3Dsearchweb0_0%2Csearchweb201602_3_10152_10151_10065_10344_10068_10342_10343_10340_10341_10543_10696_10084_10083_10618_10307_10301_5711220_10313_10059_10534_10682_10681_10683_100031_10103_10624_10680_10623_443_10622_10621_10620_10125%2Csearchweb201603_37%2CppcSwitch_4%26algo_expid%3D1fbd3273-3f90-4745-9b97-80ba234c8f44-0%26algo_pvid%3D1fbd3273-3f90-4745-9b97-80ba234c8f44%26transAbTest%3Dae803_5%26priceBeautifyAB%3D0 MAX7219 - https://alitems.com/g/1e8d114494bb5262009316525dc3e8/?ulp=https%3A%2F%2Fru.aliexpress.com%2Fitem%2F5PCS-MAX7219CNG-MAX7219-DIP-24-DIP24-DIP-New-original-free-shipping%2F32843796580.html%3Fspm%3Da2g0v.search0104.3.20.2cd7725d4Q6JKx%26ws_ab_test%3Dsearchweb0_0%2Csearchweb201602_3_10152_10151_10065_10344_10068_10342_10343_10340_10341_10543_10696_10084_10083_10618_10307_10301_5711215_10313_10059_10534_10682_10681_10683_100031_10103_10624_10680_10623_443_10622_10621_10620_10125%2Csearchweb201603_37%2CppcSwitch_4%26algo_expid%3D23f50b6d-7377-4161-a4e1-ab9a0932acde-2%26algo_pvid%3D23f50b6d-7377-4161-a4e1-ab9a0932acde%26transAbTest%3Dae803_5%26priceBeautifyAB%3D0