Sensor fusion and on-device ML
On-chip sensor fusion outputs orientation directly — no fusion filter to run on the host.
Engineering inference
HiPNUC
HiPNUC CH040 is a 25 × 20 × 2.7 mm surface-mount 6-DoF IMU/VRU with an on-board adaptive EKF. It has a ±2000 °/s gyro (1.6 °/h bias instability) and ±12 g accelerometer (18 µg), factory temperature compensation from −40 to 85 °C, and attitude output up to 1 kHz over UART or 200 Hz over CAN. Pitch/roll is accurate to 0.1–0.2°. 3.2–5.5 V, 305 mW, < 2.5 g.
CH040Development boardFacts about the complete product. Unknown values remain open design questions.
Guidance to help you shortlist. The basis is shown for each recommendation.
On-chip sensor fusion outputs orientation directly — no fusion filter to run on the host.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
What it measures, how fast, and how the controller reads it.
| Pin / wire | Position | Role | Notes |
|---|---|---|---|
| VDD | power in | power input 3.3–5 V | |
| GND | ground | ||
| EN | input | enable, active high, internal pull-up; may float | |
| IO1 | gpio | multifunction IO, default PMUX1 SYNC_IN (sync / PPS input) | |
| IO2 | gpio | multifunction IO, default PMUX2 SYNC_OUT | |
| RXD2 | uart rx | UART2 receive | |
| TXD2 | uart tx | UART2 transmit | |
| GND | ground | ||
| IO5 | gpio | multifunction IO, default PMUX3 LED | |
| IO6 | gpio | multifunction IO, default PMUX4 SOUT_DIV | |
| TXD1 | uart tx | UART1 transmit (data + configuration) | |
| RXD1 | uart rx | UART1 receive | |
| IO9 | gpio | reserved, may float | |
| CAN_RX | can | CAN RX (external transceiver needed) | |
| CAN_TX | can | CAN TX (external transceiver needed) | |
| TXD3 | uart tx | UART3 transmit — leave floating | |
| RXD3 | uart rx | UART3 receive — leave floating | |
| NRST | input | reset, active low; may float |
| Connector | Type |
|---|---|
| lga18 | 18-pad surface-mount package (castellated / LGA): VDD, GND, EN, UART1/2/3, CAN RX/TX, 5 multifunction IO, NRST |
Ranges are the largest selectable full-scale setting; noise densities are typical datasheet values.
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.
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| lga1818-pad surface-mount package (castellated / LGA): VDD, GND, EN, UART1/2/3, CAN RX/TX, 5 multifunction IO, NRST | 18 | Unknown | — |
Every available field, including details beyond the summaries. Null means the value has not been established.
US / USD is the target market. Observed price and stock are separate from a delivery quote.
US · USD
This observation is stale or has no verified check time. Recheck with the supplier.
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Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Manufacturer reference
Unverified reference
inspected: left module labelled IMU/AHRS P/N CH040MP — the same 25 × 20 mm package as the CH040; right is the smaller CH010. No CH040-only photo is published by the store.
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.
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.io_voltage_v, spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.constraints.thermal.operating_temp_max_c, spec.constraints.thermal.operating_temp_min_c, 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.accel_range_g, spec.provides.axes, spec.provides.features, spec.provides.gyro_range_dps, spec.provides.interface, spec.provides.output_data_rate_hz, spec.provides.sensor_fusion, spec.provides.sensor_type, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete
sha256 d4c2b3e1826376cf9e3b66d595abda44049311b62078ea641c17287a10b14d96
Supports: offers
Supply range 3.2–5.5 V.
From $100 at aifitlab.com. Prices are observed unit prices before tax and shipping.
25 × 20 × 2.7 mm. A STEP model is available for enclosure fit checks.
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.