Source: http://ec.hobbykompetenz.de/index.php/2017/06/07/gpio/orangepi-2g-iot-pinout-gpio-2-2/
WordPress – How to reduce response time using Nginx
One of the big WordPress problem – long response time (over 1000 milliseconds). Optimal response time should be no more 500 ms. One of the effective way for it – enable cache on web server level.
ZE08-CH2O – Datasheet (English & China versions)
ZE08-CH20 – is a electrochemical formaldehyde sensor.
VoCore2 – Pinouts and specifications
VoCore2 – is a very interesting board for IoT solutions that based on SoC MT7628AN.
Arduino – Enabling and using WatchDog timer
By default in official Arduino documentation no any information about WatchDog timer. WatchDog timer (WDT in short) – is a hardware external timer that reset the microcontroller if the main program crashed or go to the infinite loop or etc error action.