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“This document describes the construction of small frequency counter with a cheap PIC microcontroller and a few seven-segment LED digits. The main features of the frequency counter are: - frequency range 1 Hz … 50 MHz (prototype worked up to 60 MHz …

“One of the often-overlooked means of improving the coverage of an amateur radio repeater is the use of multiple receivers in a voting configuration. It’s often the case that a user can hear the repeater fine, but for whatever …

“RIOT (Realtime Internet of Things) is a free software package (non-commercial) I created that makes using the ESP8266 with microcontrollers very simple. The ESP8266 module is a very brilliant and underestimated Wi-Fi module that can turn any serial port (be …

“Control anything with your remote control. This receiver works with RC-5 and NEC format IR remote controls, depending on the firmware used. The receiver has 11 output channels, and each channel can have up to 4 buttons (on, off …