| Some of my young friends claimed that the 4 channel servo with XBEE though very sophisticated & robust but a bit costlier therefore, they as...
bera (84)
![4 Channel Remote control by XBEE [150408]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Ffigure-9-0.jpg)
| 433 MHz radios are great for making remote control toys and RC switches which are based on throwing some switches on and off here and there...
PREMIUM
![Maximum Power Point Tracking for Solar Photovoltaic Panel [150411]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Ffigure-1-new-0.jpg)
| MPPT – Maximum Power Point Tracker
| Raspberry Pi weather recorder
| MPPT – Maximum Power Point Tracker
| Problem of speed control
| Remote water level meter – a need of the hour
| Many a times we in the industry, limits ourselves due to overwhelming nature of the proprietary items combined with lack of money to do the...
PREMIUM
![Raspberry Pi sonar distance measuring Robot - a walking aid [150401]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Ffigure-3-1.jpg)
| Raspberry Pi distance measuring robotics - Blind man's aid