MTS Payment service has launched the sale of virtual SIM cards for travelers with a prepaid Internet package from local operators in more than 200 countries and regions of the world. This was reported ...

Starting from January 1, 2025, the procedure for purchasing SIM cards by foreigners will become stricter in Russia. The measures are aimed at combating fraudsters and "gray" SIM cards. This is ...

Ham radio operators may be familiar with slow-scan television (SSTV) where an image is sent out over the airwaves to be received, decoded, and displayed on a computer monitor by other radio ...

Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, and turning off when the sensor is released. The testing of the keys ...