Comparisons

When an Arduino UNO or Nano is no longer powerful enough, many users look for a faster 32-bit microcontroller board. Three common options are STM32 Black Pill boards, RP2040 boards and ESP32 boards. All three are much more capable than classic 8-bit Arduino boards, but they are not the same type of product. STM32 Black […]

OLED and LCD displays are both common choices for Arduino-compatible projects, but they behave very differently. OLED displays are self-emitting, high-contrast and often very compact. LCD displays use liquid crystal segments or pixels and usually depend on ambient light or a backlight. This article compares OLED and LCD displays from a practical project point of

One of the strongest advantages of CANABLOX is that it is not locked to one microcontroller. The system is built around modular hardware, and the controller can be selected based on the project. Instead of forcing every user into one specific board, CANABLOX can work with many XIAO-format controller modules. This makes CANABLOX extremely versatile.

The Seeed Studio XIAO series is popular because it puts many different microcontroller platforms into the same tiny board format. Instead of choosing between large development boards, users can choose a small XIAO module based on the controller family that fits their project. This article compares several important XIAO module types, including RA4M1, RP2040, RP2350,

7-Segment Display vs LED Matrix vs Character LCD: Best Display for Numbers and Status Many microcontroller projects only need to show numbers, short status messages or simple symbols. For this type of project, a full graphic display is often unnecessary. Three common choices are 7-segment displays, LED matrix displays and character LCDs. This article compares

The ESP8266 and ESP32 families are among the most popular WiFi microcontroller platforms for Arduino-compatible projects. They are inexpensive, widely supported and useful for sensors, web-connected devices, home automation, wireless controls and IoT projects. However, not all ESP modules are the same. The classic ESP8266 is older and simple. The classic ESP32 is more powerful

LED displays can use many microcontroller pins if they are wired directly. This is why LED display driver chips are so useful. A display driver handles multiplexing, segment control and brightness control, while the microcontroller only sends the data that should appear on the display. This article compares four common LED display driver options: MAX7219,

The ESP32-C3, ESP32-C5 and ESP32-C6 are modern Espressif microcontrollers based on RISC-V processor cores. They are part of the newer ESP32 generation and are especially interesting for WiFi, Bluetooth LE and smart-home projects. The names are similar, but the chips are not simply small, medium and large versions of the same device. The ESP32-C3 is

WS2812B-style addressable RGB LEDs are popular because many LEDs can be controlled with only one data signal. Each LED contains red, green and blue LED chips plus a tiny controller. The LEDs are connected in a chain, and the microcontroller sends color data through the chain. WS2812B LEDs are available in many physical formats. Three

ESP32 boards are available in many different shapes and sizes. Three common formats are full-size ESP32 DevKit boards, D1 Mini ESP32 boards and Seeed Studio XIAO ESP32 modules. They may use related ESP32 chip families, but the board format can make a big difference in how easy they are to use in a project. This