Comparisons

The Arduino UNO, Arduino Nano and Arduino Pro Mini are three of the most common ATmega328P-based development boards. They are closely related because they use the same basic microcontroller, but they are very different in size, connectors, power handling and practical use. This comparison helps explain when to use a full-size UNO-style board, when a […]

Low-cost wireless modules are popular for Arduino-compatible projects because they make it possible to send data without cables. However, simple 315/433/868 MHz RF modules, nRF24L01 modules and LoRa modules are very different technologies. They do not offer the same range, reliability, data rate or software complexity. This article compares simple RF transmitter/receiver modules, nRF24L01 modules

Many Arduino-compatible projects mix older 5V boards with newer 3.3V modules. A classic Arduino UNO or Nano usually uses 5V logic. Many modern boards, sensors and wireless modules use 3.3V logic. This difference matters because signal voltage is not only a power supply detail. It can decide whether a circuit works reliably or whether a

The Arduino UNO is one of the most recognized microcontroller boards in the world. For many years, the UNO R3 was the standard beginner board for Arduino projects. With the UNO R4 generation, Arduino kept the familiar UNO shape but replaced the older 8-bit AVR microcontroller with a much more powerful 32-bit Arm Cortex-M4 controller.

The nRF52840 and ESP32-C6 are both modern wireless microcontrollers used in embedded and Arduino-compatible projects. They can both be interesting for Bluetooth LE, Thread and smart-home applications, but they are not the same type of wireless platform. The nRF52840 is best known as a strong Bluetooth LE and low-power wireless microcontroller. The ESP32-C6 combines 2.4

Electronic modules can connect to a project in many different ways. Three common connector styles are screw terminals, pin headers and STEMMA QT / Qwiic 4-pin I2C connectors. They all move signals and power from one board to another, but they are designed for different situations. This article compares screw terminals, pin headers and STEMMA

The ATmega328P, ATmega2560 and ATmega32U4 are three of the most important classic AVR microcontrollers used in Arduino-compatible boards. They are all 8-bit microcontrollers, they are well supported by the Arduino IDE, and they have been used in thousands of projects for many years. Even though modern 32-bit boards are much more powerful, these AVR chips

MAS6180C-based receiver modules and ES100-based receiver modules are both used to receive longwave atomic clock time signals, but they are not the same type of receiver. The MAS6180C is a traditional AM time-signal receiver IC. The ES100 is a more advanced receiver solution designed for the enhanced WWVB signal used in North America. This article

Breadboards are useful. They are cheap, flexible and perfect for learning how simple circuits work. But every maker knows what happens when a breadboard project grows: jumper wires everywhere, loose contacts, unclear wiring and hours of troubleshooting problems that are not caused by the code at all. CANABLOX was created to solve exactly this problem.

Many Arduino-compatible boards use a separate USB-to-serial chip between the USB connector and the microcontroller. This chip allows the computer to upload sketches, open the serial monitor and communicate with the board through a virtual COM port. Common USB-to-serial solutions include the CH340 family, the CP2102 family and, on original Arduino UNO R3-style boards, the