Knowledge Base

Real XIAO ESP32-C3 board photograph composited onto a sunlit maker workbench

XIAO ESP32-C3 Arduino Setup and Pinout

Set up the XIAO ESP32-C3 in Arduino IDE and map D0–D10 to GPIO. Covers 3.3V safety, external-LED Blink, upload recovery and Seeed’s documented Wi-Fi example.

XIAO ESP32-C3 Arduino Setup and Pinout

Set up the XIAO ESP32-C3 in Arduino IDE and map D0–D10 to GPIO. Covers 3.3V safety, external-LED Blink, upload recovery and Seeed’s documented Wi-Fi example.

Real XIAO ESP32-C3 and standard ESP32-S3 board photographs composited onto a sunlit maker workbench

XIAO ESP32-C3 vs ESP32-S3: Which Board, and Whe...

Choose XIAO ESP32-C3, S3 or C6 for your project. Compare 8 MB PSRAM, pins, antennas and examples. Separate radio support from ready-made smart-home devices.

XIAO ESP32-C3 vs ESP32-S3: Which Board, and Whe...

Choose XIAO ESP32-C3, S3 or C6 for your project. Compare 8 MB PSRAM, pins, antennas and examples. Separate radio support from ready-made smart-home devices.

SEQURE H743 V2 flight controller and E130 G2 high-current four-in-one ESC stack

The E160 Stack Adds 47.7g. When Is It Worth It?

Learn which SEQURE H743 V2 stack fits your drone. Compare E70, E130 and E160 voltage, current, weight, size, 12S wiring and the option we would buy today.

The E160 Stack Adds 47.7g. When Is It Worth It?

Learn which SEQURE H743 V2 stack fits your drone. Compare E70, E130 and E160 voltage, current, weight, size, 12S wiring and the option we would buy today.

iFlight Borg Mini H7 flight controller and Borg 60R four-in-one ESC stack

The H7 Upgrade Removes a UART—and Your Current ...

Learn whether the iFlight Borg Mini H7 or F7 stack fits your build. Compare five vs six UARTs, onboard ELRS, current sensing, 60A ESCs and 8S support.

The H7 Upgrade Removes a UART—and Your Current ...

Learn whether the iFlight Borg Mini H7 or F7 stack fits your build. Compare five vs six UARTs, onboard ELRS, current sensing, 60A ESCs and 8S support.

Pixhawk passive buzzer with circular piezo sounder and two-wire connector

The Buzzer Beeps, But Your Pixhawk Still Won't Arm

Learn why a Pixhawk buzzer can beep while the aircraft still will not arm. Compare passive tone alarms, safety switches, connectors and the 5cm mounting rule.

The Buzzer Beeps, But Your Pixhawk Still Won't Arm

Learn why a Pixhawk buzzer can beep while the aircraft still will not arm. Compare passive tone alarms, safety switches, connectors and the 5cm mounting rule.

MicoAir743 V2 flight controller and AM32 ESC stack on an electronics workbench

The Smaller Board Loses Bluetooth: MicoAir743 V...

Learn whether the MicoAir743 V2 AIO or stack fits your build. Compare mounting, AM32 current, UARTs, compass, Bluetooth, BECs and ArduPilot support today.

The Smaller Board Loses Bluetooth: MicoAir743 V...

Learn whether the MicoAir743 V2 AIO or stack fits your build. Compare mounting, AM32 current, UARTs, compass, Bluetooth, BECs and ArduPilot support today.