... That said, I recently tried the Raspberry Pi Pico W for a low-power project, and I WAs impressed! It’s small, breadboard friendly, and has Wi-Fi built in just like an ESP Board, which makes it a great choice for simpler tasks. If your project doesn't need the extra power of the ESP32, it might be worth considering. Overall, I still reach for the ESP32 for most of my projects, but I keep an eye on new Boards like the Pico W for specific needs!

Hello bryan, Yes, actually they are used interchangeably to refer to the ESP8266 dev Board. Technically speaking, the NodeMCU WAs originally a firmware designed for the ESP8266 microcontroller to interact with the ESP8266. However, over time, the term "NodeMCU" became closely associated with the hardware (development Board) that used this firmware. In simple word, NodeMcu is referred to the development Board for ESP8266 whereas ESP8266 is a low-cost Wi-Fi module developed by Espressif Systems.

Several new ESP32 Boards have gained popularity in the community recently, each for different reasons depending on the use case—AI, low power, display integration, or future IoT protocols. Here's a breakdown of the most liked ones: ESP32-S3 1. Native USB support (no external serial chip needed)2. Supports AI instructions for image/speech processing ESP32-C3 1. Based on RISC-V architecture 2. Ultra-low power for battery-operated devices M5Stack Series 1. Includes display, case, and built-in sensors2. Modular design for quick and easy prototyping ESP32-C6 1. Features Wi-Fi 6 + Bluetooth 5 + Thread/Zigbee Each has its strengths, so the "most liked" depends on the user's project needs. But overall, ESP32-S3 and ESP32-C3 are currently leading the popularity charts.

@ankunegi I agree that the ESP32 still offers unbeatable value under $5, especially with its built-in Wi-Fi and Bluetooth. But considering the newer Raspberry Pi Pico 2 and other microcontrollers, do you think ESP32’s power consumption is a dealbreaker for battery-powered IoT applications? Are there any low-power alternatives that provide similar connectivity options?

Thank you for the detailed recommendations! I’ll definitely consider the ESP32 Doit Devkit V1 for its versatility and features. The sensor suggestions and tips for starting simple are incredibly helpful too. I appreciate the guidance and will reach out if I encounter any challenges. Thanks again for your support!

Well, it depends. But I believe under $5, the basic version of ESP32 with ESP32-WROOM chip i.e., ESP32 DOIT DEVKIT V1 beats them all!

Yes, I am aware of this. But still, you gotta sacrifice two breadboards just to use a microcontroller 🙁

There's a simple fix for that. Just take two half-size breadboards ->snap one power rail from each - > insert the ESP32(one side of pins on breadboard A and the other side on breadboard B)

It’s more like ROM—the kind of memory you use when you need the data to stick around, even if power is lost. Think of it like writing something on your hand before going to sleep so you don’t forget it in the morning. On an Arduino, EEPROM is perfect for saving things like strings, integers, or configuration values that you WAnt to recall the next time the Board powers up. Unlike SRAM (which gets cleared when the Board resets) or Flash (which mainly holds your program), EEPROM gives you a small but persistent space for your own data.

... MHz). STM32 microcontrollers use 32-bit ARM Cortex processors with much higher clock speeds (ranging from 48 MHz to 216 MHz or more), giving them significantly better performance for complex calculations and multitasking. When to choose STM32: If you need higher processing power for tasks like advanced signal processing, real-time data handling, or running complex algorithms. When to choose Arduino: If your project is simple and doesn’t require high performance, sticking with an Arduino Board might be easier and more straightforward. 2. Ease of Use and ...