https://www.instructables.com/64×32-LED-Matrix-Clock/?utm_source=newsletter&utm_medium=email
https://habr.com/ru/post/538994/
https://shop.m5stack.com/products/m5stamp-c3-mate-with-pin-headers
https://www.instructables.com/Digital-Crazy-Hours-and-Minutes-WiFi-Sync-Clock
https://www.instructables.com/Laser-Cut-Infinity-Dodecahedron-Fusion-360
https://github.com/mattwach/matrix_clock
Разное полезное
https://github.com/tonyp7/TAS5806M-Audio-Amplifier
https://slideplayer.com/slide/16832692/
https://github.com/tonyp7/vfd-esp32-iot/tree/master/pcbs
https://github.com/pschatzmann/arduino-audiokit
https://docs.yandex.ru/docs/view?tm=1663798632&tld=ru&lang=en&name=DOC011721650.pdf
http://myowndevice.ru/index.php/blog/item/65-usilitel-so-vstroennym-dsp-protsessorom-tsentr-domashnego-bumboksa
https://www.ixbt.com/live/topcompile/-podborka-dinamikov-dlya-samodelnoy-portativnoy-kolonki.html
https://aliexpress.ru/item/32238247742.html
https://mysku.club/blog/taobao/59494.html
двусторонние платы с металлизацией
https://we.easyelectronics.ru/HomeTech/metallizaciya-otverstiy-v-kartinkah-chast-podgotovka-k-galvanike.html
https://we.easyelectronics.ru/evsi/o-vnimatelnosti-i-nevnimatelnosti-ili-podvedenie-itogov.html
https://we.easyelectronics.ru/HomeTech/istochnik-toka-dlya-galvaniki-chast-ii-esche-odna-teoriya.html
https://we.easyelectronics.ru/evsi/metallizaciya-nekotorye-promezhutochnye-rezultaty-ili-beg-po-grablyam.html#comment61525
nixie часы
https://github.com/search?p=2&q=esp8266+nixie&type=Repositories
https://github.com/mcer12/Nick-ESP8266/tree/master/Firmware/IN16_DUPLEX
https://github.com/elkayem/ESP_NIXIE
https://github.com/gpeter62/ESP_UniClock
https://github.com/jingobo/nixie-clock
https://github.com/mcer12/Nick2-Nixie-Clock/tree/main/Resources