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  Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit. The basic principle of work:   (1) Using IO trigger for at least 10us high level signal, (2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. (3) IF the signal back, through high level , time of high output IO duration is the time fr ...
What’s Orange Pi Zeroļ¼Ÿ            It’s an open-source single-board computer. It can run Android 4.4, Ubuntu, Debian. It uses the AllWinner H2 SoC, and has 256MB/512MB DDR3 SDRAM(256MB version is Standard version. Source : Orange PI Official (http://bit.ly/2i4g9S0) --------------------------------------------------------------------------------------------------- Links : Website   : http://bit.ly/2i4g9S0 Buy: http://bit ...
Flashing MicroPython Firmware to ESP8266 12-F Module.MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments.   Source: Official Website (http://bit.ly/2jjLFjV) --------------------------------------------------------------------------------------------------- Links : MicroPython official : http://bit.ly/2jjLFjV Esplorer ...