Touch and force sensing
Reads contact force up to about 20 N as a falling resistance (analog) — squeeze and touch on a gripper pad, fingertip or robot skin.
Engineering inference
Seeed Studio
Seeed Grove Round Force Sensor (FSR402)
Seeed Studio Grove Round Force Sensor (101020553): an Interlink FSR 402 force-sensitive resistor on a Grove module with an on-board divider and 3.3 V regulator — plug into any Grove analog port, no resistor math. 0.2–20 N sensitivity, analog output 0–650, >10 MΩ unloaded / 1 kΩ minimum, <3 µs rise, 3.3 V / 5 V, 75 × 20 × 11 mm, 2.5 g.
101020553Development boardPrice$14.90www.seeedstudio.com · unknown
Buy at www.seeedstudio.com Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Grasping and manipulation
Thin force sensitive resistor fits on a gripper jaw or finger to sense contact force while grasping.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 75 × 20 × 11 mm
- Verification
- generated
- Envelope complete
- Yes
Sensing & output
Sensing area, force and output
Where it senses, over what force, and what signal it gives.
- Sensing
- force sensitive resistor
- Active area shape
- round
- Force range (min)
- 0.2 N
- Force range (max)
- 20 N
- Output
- analog voltage 0–650 (10-bit), resistance >10 MΩ unloaded to 1 kΩ
- Interface
- analog
- Weight
- 2.5 g
| Pin / wire | Position | Role | Notes |
|---|---|---|---|
| VCC | power in | 3.3 V / 5 V supply | |
| GND | ground | ||
| NC | other | not connected | |
| SIG | signal | analog output (0–650 on a 10-bit ADC) |
| Connector | Type |
|---|---|
| grove | Grove 4-pin (analog: SIG, NC, VCC, GND) |
FSRs are for relative force (touch, squeeze) — not calibrated load measurement.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 75 mm
- Width
- 20 mm
- Reported height / thickness
- 11 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| groveGrove 4-pin (analog: SIG, NC, VCC, GND) | 4 | Unknown | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
www.seeedstudio.com
US · USD
$14.90Minimum quantity unknown
- Observed stock
- unknown
- Checked
- Oct 1, 2026, 12:35 PM UTC
- Delivery estimate
- Not quoted
Observed within the last 24 hours. Confirm the current supplier quote.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
Seeed Grove Round Force Sensor (FSR402) — product photo (opens in a new tab)
Manufacturer reference
store gallery image
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.other.weight_g, spec.provides.active_area_shape, spec.provides.features, spec.provides.force_range_max_n, spec.provides.force_range_min_n, spec.provides.interface, spec.provides.output, spec.provides.sensing, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete
sha256 e336d34061498d3a51a551609db3c91cd6c6167e0643e627e2e7843287e73cee
Supports: offers
FAQ
Seeed Grove Round Force Sensor questions
How much does the Seeed Grove Round Force Sensor cost?
From $14.9 at www.seeedstudio.com. Prices are observed unit prices before tax and shipping.
What are the Seeed Grove Round Force Sensor dimensions?
75 × 20 × 11 mm. A STEP model is available for enclosure fit checks.
Where does this Seeed Grove Round Force Sensor data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.