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Silicon Labs SI72XX-WD-KIT

Name: SI72XX-WD-KIT
Brand: Silicon Labs
SKU: SI72XX-WD-KIT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI72XX-WD-KIT

Manufacturer:: Silicon Labs

Category:: Sensor Evaluation Boards

Package:

Datasheet:: SI72XX-WD-KIT.pdf

Description:: DEMO AND DEVELOPMENT KIT FOR SI7

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,681

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Product details

Overview

SI72XX-WD-KIT from Silicon Labs is an evaluation kit for Si72xx Hall-effect magnetic position sensors, enabling rapid prototyping of angular position, revolution counting, and magnetic field sensing across eight distinct demos using the EFM32 Happy Gecko STK. It includes six postage-stamp-sized (PS) boards-Si7201-B01V-EB (switch), Si7202-B01V-EB (latch), Si7210-B00V-EB (I²C), Si7211-B00V-EB (analog), Si7212-B00V-EB (PWM), and Si7213-B00V-EB (SENT)-plus the Si72XX-EXP Rev2 baseboard, ribbon cable, magnets, CR2032 battery, and micro USB cable.

For engineers reviewing the SI72XX-WD-KIT datasheet, SI72XX-WD-KIT pinout, SI72XX-WD-KIT application, or SI72XX-WD-KIT equivalent, this kit supports hands-on validation of magnetic sensing interfaces-including I²C, analog voltage, PWM, SENT, and digital switch/latch outputs-across automotive position sensing, industrial rotary encoders, tamper detection, and precision angular measurement use cases.

Technical Context

The SI72XX-WD-KIT centers on the Si72XX-EXP Rev2 board, which hosts two Si7210-B02/B03 I²C Hall sensors (addresses 0x31 and 0x32) for quadrature-based wheel angular position and revolution counting. It interfaces with postage-stamp-sized PS boards via a 6-pin ribbon cable, supporting hot-swap evaluation of six sensor variants without reprogramming or hardware modification.

All eight demos run on the EFM32 Happy Gecko STK's MCU and LCD display, with real-time updates every second. Calibration for angular position uses a 36-point lookup table (10° intervals); uncalibrated accuracy is ±5°, improving to better than ±1° after calibration-requiring USB power or fresh CR2032 due to flash programming voltage requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Demo Count	8 fully implemented, self-contained demos including wheel angle, revolution counter, I²C magnetic field, internal temperature, switch/latch, analog output, PWM output, and SENT output.
Core Baseboard	Si72XX-EXP Rev2 board with dual Si7210 I²C sensors (0x31/0x32), EBID EEPROM, and J2 connector for PS board interface.
PS Board Types	Six unique postage-stamp-sized boards: Si7201 (omnipolar switch), Si7202 (bipolar latch), Si7210 (I²C + temp), Si7211 (analog), Si7212 (PWM), Si7213 (SENT).
Angular Accuracy	±5° uncalibrated; better than ±1° after 36-point manual calibration using wheel alignment and push-button sequence (PB0+PB1).
Interface Support	I²C (Si7210), analog voltage (Si7211), PWM (Si7212), SENT (Si7213), and digital switch/latch outputs (Si7201/Si7202) - all evaluated via same STK platform.
Power & Peripherals	CR2032 coin cell (for standalone operation) and micro USB (for power + debug); includes two loose NdFeB magnets and nylon screw for mechanical assembly.

Availability

SI72XX-WD-KIT is available at Aetrix Electronics and suitable for magnetic position sensing evaluation, Hall sensor interface validation, and embedded system prototyping requiring stable component supply for industrial encoder development, automotive throttle/pedal position proof-of-concept, and tamper-detection subsystem design.

Supply support for SI72XX-WD-KIT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Silicon Labs is a fabless semiconductor company specializing in low-power MCU, wireless SoC, and sensor interface solutions for IoT, industrial, and automotive applications.

The SI72XX-WD-KIT belongs to Silicon Labs' Si72xx Hall-effect sensor evaluation ecosystem, designed specifically to accelerate development of contactless position, speed, and tamper-sensing systems using factory-programmed magnetic sensors with multiple output formats.

FAQ

What is the primary purpose of the SI72XX-WD-KIT?

The SI72XX-WD-KIT is a comprehensive evaluation kit for Silicon Labs' Si72xx Hall-effect magnetic sensors. It enables engineers to validate eight distinct sensing modalities-including angular position, revolution counting, I²C magnetic field reporting, internal temperature measurement, switch/latch behavior, analog voltage output, PWM output, and SENT output-using a single EFM32 Happy Gecko STK platform and interchangeable postage-stamp-sized sensor boards.

Does the SI72XX-WD-KIT include calibrated sensors out of the box?

No-the SI72XX-WD-KIT does not ship with pre-calibrated angular position lookup tables. Calibration for the wheel angular position demo requires manual execution: press and hold PB1 while pressing PB0 on the STK, then carefully align the wheel at each of 36 positions (0°–350° in 10° increments). Uncalibrated accuracy is ±5°; calibrated accuracy exceeds ±1°.

Which Si72xx sensor variants are physically included in the SI72XX-WD-KIT?

The SI72XX-WD-KIT includes six postage-stamp-sized boards: Si7201-B01V-EB (omnipolar switch), Si7202-B01V-EB (bipolar latch), Si7210-B00V-EB (I²C + temperature), Si7211-B00V-EB (analog output), Si7212-B00V-EB (PWM output), and Si7213-B00V-EB (SENT output). All are SOT23-packaged and factory-programmed for ±20 mT full-scale unless otherwise configured via software.

Can the SI72XX-WD-KIT be used without a USB connection?

Yes-the SI72XX-WD-KIT operates standalone using the included CR2032 coin cell battery for demos that do not require flash programming. However, angular position calibration demands higher voltage and must be performed either with USB power connected or with a freshly installed CR2032 battery to ensure reliable flash write operation on the EFM32 MCU.

Is the SI72XX-WD-KIT recommended for new designs?

No-per Silicon Labs' UG288 Rev. 0.2 documentation, the SI72XX-WD-KIT is marked "Not Recommended for New Designs." It remains fully functional for evaluation and legacy design support, but new projects should consult Silicon Labs' current-generation Hall sensor evaluation platforms and latest Si72xx family documentation for updated features, qualification status, and long-term availability assurance.

SI72XX-WD-KIT Specifications

Product attributes: Attribute value

Manufacturer:: Silicon Labs

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Sensor Type:: Hall Effect

Sensing Range:: -

Interface:: -

Sensitivity:: -

Voltage - Supply:: -

Embedded:: Yes, MCU, 32-Bit

Contents:: Board(s)

Utilized IC / Part:: Si72xx

SI72XX-WD-KIT FAQ

1.How can I place an order for SI72XX-WD-KIT through Aetrix?

Please submit a Request for Quotation (RFQ) for SI72XX-WD-KIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI72XX-WD-KIT reliable?

The price and inventory of SI72XX-WD-KIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI72XX-WD-KIT is usually 5 days.

3.What payment methods are accepted for SI72XX-WD-KIT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI72XX-WD-KIT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI72XX-WD-KIT?

SI72XX-WD-KIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI72XX-WD-KIT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI72XX-WD-KIT?

For technical support, including SI72XX-WD-KIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI72XX-WD-KIT requirements.

6.How does Aetrix verify that SI72XX-WD-KIT is sourced from the original manufacturer or authorized distributors?

All SI72XX-WD-KIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI72XX-WD-KIT meets industry standards.

7.What is the process for return or replacement of SI72XX-WD-KIT?

All SI72XX-WD-KIT units undergo pre-shipment inspection (PSI). If there is an issue with SI72XX-WD-KIT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI72XX-WD-KIT part is unused and in its original packaging.

Return procedure for SI72XX-WD-KIT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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