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ESP32 Deep Sleep modes with Arduino IDE
ESP32 comes with a dual-core processor. The dual-core processing provides efficiency in terms of performance as well as power consumption. In this post, we’ll explore how to access both cores on the ESP32 and compare the performance between single-core and dual-core operations. Table of Content ESP32 Power Modes ESP32 has Five Power Modes: Power Mode…
How to use ESP32 GPIO Interrupts
Learn how to use ESP32 external interrupts using Arduino IDE. We will explain the example of an external interrupt with a button and LED. We will further discuss how to set the trigger event type and priority. Table of Content Why interrupts are important ? Let’s look at a straightforward example. Imagine you have an…
ESP32 PWM using Arduino IDE
Table of Content Pulse Width Modulation (PWM) ESP32 has Five Power Modes: Power Mode CPU Wi-Fi/Bluetooth RTC Memory & Peripherals ULP Power Consumption Active Mode ON ON ON ON Refer [RF Modes] Modem-Sleep Mode ON OFF ON ON 20 mA to 68 mA Light-Sleep Mode PAUSE OFF ON ON 0.8 mA Deep-Sleep Mode OFF OFF…
Create a ESP32 Web Server using Arduino IDE
In this example, we will see how to create a simple web server using ESP32. We will see how to control LED wirelessly using a mobile or laptop. Table of Content Overview ESP32 has 10 capacitive-sensing GPIOs, which detect variations induced by touching or approaching the GPIOs with a finger or other objects. The low-noise…
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ESP32 PWM using Arduino IDE
What is PWM? Imagine ESP32 PWM Image(pin diagram), specifications of PWM Method 1: analogWrite() Method 2: LEDC Driver ledcAttach() ledcWrite() Example 1: Fading LED – analogWrite() We will increase and decrease the LED brightness over time. We will use the analogWrite() function to control the brightness of the LED. Code Explanation Start by defining the…