https://www.robolabor.ee/homelab/ 2026-04-15T22:40:22+00:00 https://www.robolabor.ee/homelab/ https://www.robolabor.ee/homelab/lib/tpl/arctic/images/favicon.ico text/html 2026-02-19T11:30:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.robolabor.ee/homelab/en/examples/digi/amp_out?rev=1771493459&do=diff Amplified digital output Required knowledge: [HW]Kombomoodul, [AVR]Digitaalsed sisendid-väljundid, [LIB]Bitioperatsioonid, [LIB]Sisend-väljundviigud Theory Microcontroller pins are usually not intended to switch large loads. Atmel microcontroller pins allow only 30 mA per pin, and on many controllers the number is even smaller (ARM controllers only a few mA). This means that a microcontroller pin can control only low-current devices (e.g., LEDs, ICs). text/html 2020-07-20T12:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.robolabor.ee/homelab/en/examples/digi/buzzer?rev=1595235600&do=diff Buzzer text/html 2020-07-20T12:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.robolabor.ee/homelab/en/examples/digi/led?rev=1595235600&do=diff Light-emitting Diode Necessary knowledge: [HW]User Interface Module, [ELC]LED Resistor Calculation, [AVR]Registers, [AVR] Digital Inputs/Outputs, [LIB]Bitwise Operations, [LIB]Pins Theory A light-emitting diode is a semiconductor which emits light when forward voltage is applied. The acronym for light-emitting diode is LED. There are different color combination of diodes and the diodes, which can also emit white light. Like a normal diode, the LED has two contacts – anode and cathode. On d… text/html 2026-02-19T11:30:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.robolabor.ee/homelab/en/examples/digi/sound?rev=1771493459&do=diff Sound generator Required knowledge: [HW]Kasutajaliidese moodul, [AVR]Loendurid/Taimerid, [AVR]Digitaal-analoogmuundur, [LIB]Heligeneraator Theory One practical use of timers is driving a sounder or a speaker. Sounders are often used in control panels, alarm devices, and elsewhere to make button presses or signal tones audible. Such a sounder is often simply called a speaker, a beeper, or a text/html 2020-07-20T12:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.robolabor.ee/homelab/en/examples/digi/switch?rev=1595235600&do=diff Switch Neccesary knowledge: [HW] User Interface Module, [AVR] Digital Inputs/Outputs, [LIB] Pins, [PRT] Light-emitting Diode Theory A switch is an electromechanical device which can connect or break an electrical circuit. There are many different types of switches; the most common mechanical switch is mechanically connectible electrical connectors. If connectors are connected, electrical circuit is closed and electricity can flow through the switch. If connectors are disconnected, electr…