DFRobot Fermion: ADXL345 Digital Triaxial Acceleration Sensor (Breakout) (±16G)
Measures acceleration up to ±16G
Access via SPI or I2C interfaces
Detects activity and free-fall
Boasts ultra low power consumption
Incorporates a 32-level FIFO buffer
The DFRobot Fermion: ADXL345 Digital Triaxial Acceleration Sensor (Breakout) (±16G) is a compact and efficient sensor designed for precise measurement of acceleration across three axes. This device is equipped with a high-resolution 13-bit measurement capability, allowing it to detect acceleration up to ±16 g. The digital output data is formatted in a 16-bit two's complement and can be accessed via either SPI or I2C digital interfaces, providing flexibility in integration with various systems.
This sensor is particularly adept at measuring both static acceleration, such as gravity in tilt-sensing applications, and dynamic acceleration resulting from motion or shock. Its high resolution, with a sensitivity of 4 mg per least significant bit, enables it to detect inclination changes of less than 1.0°, making it suitable for applications requiring precise tilt measurements.
The ADXL345 includes several advanced sensing functions. It can detect activity and inactivity by monitoring motion levels on any axis, and it features tap sensing for single and double taps, as well as free-fall detection. These functions can be configured to trigger one of two interrupt output pins, enhancing its utility in various applications. Additionally, the sensor incorporates a 32-level FIFO buffer, which allows for efficient data storage and reduces the need for constant host processor intervention.
The device is designed with low power consumption in mind, featuring intelligent motion-based power management. This includes threshold sensing and active acceleration measurement, which operate with minimal power dissipation, making it ideal for battery-powered applications.
1x DFRobot Fermion: ADXL345 Digital Triaxial Acceleration Sensor (Breakout) (±16G)
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".