dfh.fm
ADXL345 Accelerometer
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Bare ADXL345 accelerometer breakout for Klipper resonance testing. This small 3-axis digital accelerometer board is the direct-wired option for measuring printer vibration and tuning input shaper on Klipper machines.
Why use this board
- Uses the ADXL345 3-axis MEMS accelerometer: selectable ±2 g, ±4 g, ±8 g, ±16 g ranges with up to 13-bit full-resolution output.
- Supports SPI and I2C at the chip level; for Klipper resonance measurement, use SPI per Klipper's measuring-resonances guidance.
- Low-mass breakout board is easy to temporarily mount to a toolhead, bed, or carriage while tuning resonance.
- Includes the loose male pin header shown; soldering and wiring are required.
Specifications
- Sensor: ADXL345 3-axis digital accelerometer
- Measurement range: ±2/±4/±8/±16 g, user-selectable
- Resolution: fixed 10-bit or full-resolution mode up to 13-bit at ±16 g
- Digital interfaces: 3-wire SPI, 4-wire SPI, or I2C
- Breakout pins visible on the board: GND, VCC, CS, INT1, INT2, SDO, SDA, SCL
- Chip supply range from Analog Devices datasheet: 2.0–3.6 V; use 3.3 V unless your controller and module documentation explicitly confirm otherwise.
Printer fitment
Use it for Klipper input-shaper calibration on Voron, LH Stinger, and other Klipper-based 3D printers when you are comfortable wiring an accelerometer directly to a Raspberry Pi, Raspberry Pi Pico, or supported controller SPI bus.
Which accelerometer should you buy?
- Choose this ADXL345 breakout if you want the low-cost direct-wire board and do not mind soldering/crimping.
- Choose the KUSBA USB ADXL345 Accelerometer if you want a USB accelerometer instead of running SPI wires.
- Choose the LDO Input Shaper Toolkit if you want a more complete cabled input-shaper kit.
Gotchas
- This is not a USB accelerometer and it does not include a cable or printed mount.
- Klipper's ADXL345 resonance workflow expects SPI; I2C is too slow for that use case.
- Double-check power, ground, and SPI wiring before powering the printer electronics.
Shipping & Returns
Returns:
Thank you for purchasing from dfh.fm. I want you to be completely satisfied with your purchase. If for any reason you are not satisfied, you may return your purchase within 60 days of the original purchase date.
Defective items: Please inspect items upon receipt. If you receive a defective item, you may return it for a full refund or replacement within 90 days of the original purchase date. Please contact me to initiate a return for a defective item.
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Preordered items: Due to the nature of preorders, delivery dates are subject to change. Please keep in mind that, If you have preordered an item, it is not eligible for a refund until after it has arrived at the store. Once the item arrives at the store and is inspected, you may request a refund within 30 days of the original purchase date. Please note that refunds for preordered items may take up to 10 days to be issued.
To initiate a return, please open a ticket on the shop’s discord channel, with your order number and the reason for the return. We will provide you with further instructions on how to return your purchase.
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Shipping:
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