LED Flasher using NE555
LED Flasher circuit using NE555 timer IC R1, R2, C1 and the supply voltage determine the flash rate. For a variable flash rate, replace R1 with a 1 MΩ pot in series with a 22k resistor. The purpose of R3…
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
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10 Stage LED Sequencer
10 Stage LED Sequencer Components IC1- CD4017 IC2- NE555 C1 – 1μ C2- 0.01 μ R1 – 470 Ω R2 – 100 KΩ R3- 100 Ω LED1-10 – RED LED 9volt DC power supply. …
LED Basics
Today LED has become an integral part of consumer electronics. LED TV, LED Display, LED Lights and so on. These are becoming very popular because of there low power consumption. What is LED? LED stands for Light emitting diode. A…
ESP32 Wi-Fi Scanner Project EP4 – Add BLE Scanner and Battery Support
In the previous episodes of the ESP32 Portable Wi-Fi Scanner project, we built the project step by step. In Episode 1, we created a basic Wi-Fi scanner that displayed nearby networks on the Serial Monitor. In Episode 2, we added…
ESP32 Wi-Fi Scanner Project EP3 – Display Live Wi-Fi Networks on TFT
In Episode 1, we built a basic ESP32 Wi-Fi scanner and displayed nearby Wi-Fi networks on the Serial Monitor. In Episode 2, we moved toward a graphical interface by setting up a 2.8-inch TFT display based on the ST7789 controller.…
ESP32 Wi-Fi Scanner Project EP2 – Build the TFT Display Framework (ST7789)
Introduction Welcome to Episode 2 of the ESP32 Wi-Fi Scanner Project. In Episode 1, we built a basic Wi-Fi scanner that displayed nearby Wi-Fi networks on the Serial Monitor. In this episode, we’ll take the project to the next level…
ESP32 WiFi Scanner Project – Scan Nearby WiFi Networks Using Arduino IDE (Episode 1)
WiFi is everywhere around us. Have you ever wondered how many WiFi networks are available nearby and what information they broadcast? In this project, we’ll build a simple WiFi Scanner using an ESP32 development board and Arduino IDE. This is…
How to Automate Azure DevOps (ADO) Reports Using Python
Manually creating Azure DevOps reports can be time-consuming and repetitive. In this guide, you’ll learn how to automate Azure DevOps (ADO) reporting using Python and generate HTML reports with just a few commands. Prerequisites Install Required Libraries Install the required…
How to use ESP32 with I2C 16×2 LCD
For this project we will be using a ESP32 with 16×2 I2C LCD display, but LCDs with other sizes should also work. The advantage of using an I2C LCD is that the wiring is really simple. You just need to…
ESP32 Weather Clock with TM1637 Display using Weather API
This is in continuation to my earlier post on ESP32 Digital Clock using TM1637. Here we will see on how to build ESP32 Weather Clock with TM1637 Display using Weather API. We will use weather API to get local temperature…