Nginx – is a popular web server. One of the way of using it – is a reverse proxy. And in this article demonstrate, how to use it as the reverse proxy for WSS (WebSocket Secure).
Onion Omega2 Plus – How to connect DS18B20 and read data
DS18B20 – is a digital thermometer that works through the 1-Wire interface. On one 1-Wire interface, potentially you can connect over 20 devices! In this article short review how to connect DS18B20 to Onion Omega 2 and read data.
SQL: Как выбрать только повторяющиеся записи
Достаточно использовать параметр HAVING оператора SELECT. Примеры для выборки только повторяющихся/уникальных записей: Continue reading