I have been looking into power supply circuits for powering ESP32 and ESP32-CAM, different techniques, circuit diagrams etc. I was interested in 5V output to power esp32-cam, because I have heard that it is better to power esp32-cam with 5V rather than 3.3V. I wrote about a design soluti…
I have been looking into power supply circuits for powering ESP32 and ESP32-CAM, different techniques, circuit diagrams etc. I was interested in 5V output to power esp32-cam, because I have heard that it is better to power esp32-cam with 5V rather …
The ESP32-CAM is a powerful microcontroller with built-in Wi-Fi, Bluetooth, and a camera interface, but it can be power-hungry—especially when using Wi-Fi and the onboard camera. If you're looking to make your ESP32-CAM project portable , one of…
🔧 What is the MT3608? The MT3608 is a high-efficiency, step‑up (boost) DC‑DC converter IC, commonly used on small modules for electronics projects. It takes a lower input voltage (like 2–24 V) and boosts it to a higher adjustable output (up to ~…
I had disassembled the Arduino Blutooth controlled RC car that I had built many months ago for adding crane part to the car. I did not successfully completed it but I was/am close to it. I wanted to build the crane part on top of the arduino blueto…
The TP4056 1A 18650 lithium‑ion battery charger module is an ultra‑popular, compact charging board commonly used for DIY electronics projects(see DIY +5V Regulated Power Supply ). Here's a breakdown of its components and functionality: ⚡ 1. C…
Previously I had build couple of RC controlled car with Arduino with Bluetooth, controlled with NodeMCU WiFi and wrote note on it in my diary note Arduino-Based Bluetooth Car , autonomous robot car and Two wheels WiFi control NodeMCU Car . Now fo…
After many months since I first worked with ESP-CAM module, I tried to upload a code into it. But I got errors. I checked and remembered that I encountered such problem back then which I wrote about in my note Troubleshooting Uploading Problem with …
I am learning how to repair Ubiquity Lite AP 120 radio . Yesterday I wrote note on how to check for bad capacitor on the PCB of the radio. I came across a diode which showed continuity between its terminal. And so today I wanted to write a note on…
I bought couple of Repairing Ubiquiti Lite AP 120 but they are all malfunctioning. One started to malfunction just after 3 to 4 months. Then I bought another and that 2nd radio antenna also got malfunctioning, also after using it after 5-6 months. …
