Learn electronics, coding, and projects — step by step.
In this demonstration, I show a Relay Timer Controller. The multitasking is achieve using the power of millis function. The following task are achieve: The On state of the relay (simulated through the LED). Navigating the LCD menu using buttons. CIRCUIT DIAGRAM VIDEO DEMONSTRATION CALL TO ACTION If you like this article, please give me […]
In this tutorial, we will learn how BlinkWithoutDelay example can be use to do multiple task at the same time. CIRCUIT DIAGRAM VIDEO DEMONSTRATION SOURCE CODE 1. Blinking 3 LED in Different Intervals // LED definitions for easy reference #define RED_LED A0 #define YEL_LED A1 #define BLU_LED A2 // variables for the red LED bool […]
In this article, I will show you a simple LCD Menu implementation I am working on. In here, we use an Arduino Uno board, a 16×2 LCD for the display, and some tactile buttons for controlling the menu. The menu is implemented using state machines for the menu navigation. A button debouncing is implemented to […]
Here we will further our exploration with the SIM800L GSM Module by testing the voice call capability. 1. Send ATD+ZZxxxxxxxxxx;<CR><LF> – this is tell the GSM module to dial the following mobile number ZZ – the country code of the mobile number you want to call xx – is the 10-digit mobile number ; – […]
In this tutorial, we will explore the mouse emulation in Arduino Uno. This should be the part 2 in using the Arduino Uno as Human Interface Device. You may also want to visit the part 1 here: https://techtotinker.com/tutorial-how-to-use-arduino-uno-as-hid-part-1-arduino-keyboard-emulation/ CIRCUIT DIAGRAM VIDEO DEMONSTRATION SOURCE CODE /* Arduino USB Mouse HID demo */ /* Author: Darran Hunt […]