ADXL345 V2.0 - Resonance meter - Klipper 3D printers

Version: 2.0

BIGTREETECH ADXL345 V2.0 is a module for 3D printer resonance compensation. It can communicate through USB, greatly simplifying wiring.

Difference Between S2DW V1.0 and ADXL345 V2.0:

The only difference between the ADXL V2.0 and the S2DW lies in the chip version used (LIS2DW in the S2DW V1.0 versus ADXL345 in the ADXL V2.0).

While both chips offer the same acceleration measurement functions, the LIS2DW stands out for its higher sensitivity, lower noise, and improved temperature stability.

Main features:

• The board has a reserved BOOT button for easey firmware updates.
• Reserved solder points enable users to customize wiring easily.
• The USB port has an added ESD protection chip to prevent the MCU from being damaged by statis electricity through the USB.

Specifications:

• Dimensions: 33.25 x 15.5mm.
• Microprocessor: RP2040 Dual ARM Cortex-M0+ @ 133MH
• Input Voltage: DC 5V.
• Logic Voltage: DC 3.3V.
• Communication with PC: USB2.0.
• Sensor: ADXL345.
• Sensor Communication: 4Line SPI.
• Resolution: Up to 3.9mg/LSB.
• Output Data Rate: 0.1-3200Hz.
• Sensor Operating Temperatura Range: -40ºC to 85ºC.

Firmware Support: currently only supports Klipper firmware.

Flezxible Mounting Options:

• Method 1: StealthBurner Direct Mount.
  Effortlessly install ADXL345/S2DW in the desingnated location, streamlining the setup process and saving valuable time.
• Method 2: Nozzle Mount.
  Remove the original nozzle and install it at the nozzle location to achieve more precise measurements.

Accesories included: screw and silicone rings.

More info here.