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Silicon Labs CAPTOUCHSENSESK
- Part No.:
- CAPTOUCHSENSESK
- Manufacturer:
- Silicon Labs
- Category:
- Sensor Evaluation Boards
- Package:
- Datasheet:
-
CAPTOUCHSENSESK.pdf
- Description:
- KIT STARTER CAP TOUCH SENSE
- Quantity:
- Payment:
- Shipping:
Inventory:4,505
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Product details
Overview
CAPTOUCHSENSESK from Silicon Laboratories is a complete evaluation and development kit comprising the CapTouchSense Daughter Card (CapTouchSenseDC), ToolStick Base Adapter, and USB extension cable. It enables rapid prototyping of capacitive touch sensing applications using the C8051F931 8-bit MCU, featuring four relaxation-oscillator-based touch switches, four GPIO-controlled LEDs, a mechanical push-button, battery-powered operation (1.5 V A76 cell), and full pin access for hardware expansion.
For engineers reviewing the CAPTOUCHSENSESK datasheet, CAPTOUCHSENSESK pinout, CAPTOUCHSENSESK application, or CAPTOUCHSENSESK equivalent, this kit supports hands-on evaluation of embedded capacitive touch interface design, firmware calibration workflows, memory-game logic implementation, and low-voltage mixed-signal debugging via USB-C2 interface - all without requiring external power supplies or custom PCBs.
Technical Context
The CAPTOUCHSENSESK integrates the CapTouchSenseDC daughter card with the ToolStick Base Adapter to form a USB-connected debug and demonstration platform. The C8051F931 MCU implements capacitive touch sensing using on-chip analog comparators, internal resistors, and multiplexed relaxation oscillators - eliminating external components for basic touch detection.
Power management includes dual-source selection (USB 5 V or 1.5 V alkaline battery), onboard 3.3 V/1.5 V regulation, and automatic power-source detection. Debugging uses the C2 interface shared with /RST and P2.7 pins, enabled by on-board resistors supporting simultaneous I/O and in-system programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Kit Composition | CapTouchSenseDC daughter card + ToolStick Base Adapter + USB extension cable |
| Core MCU | C8051F931 8-bit microcontroller with integrated analog comparator and relaxation oscillator circuitry |
| Touch Sensing | Four PCB-trace-based capacitive switches implemented via on-chip relaxation oscillators; no external RC components required |
| Power Options | USB-powered (5 V) or battery-powered (1.5 V A76 alkaline cell); selectable via S1 toggle switch |
| Debug Interface | USB-to-C2 bridge via ToolStick Base Adapter; supports flash programming, breakpoints, and real-time register inspection |
| GPIO Access | Full pin access to all C8051F931 I/O ports (P0.0–P0.7, P1.0–P1.6, P2.7) via prototyping area and edge connector |
Availability
CAPTOUCHSENSESK is available at Aetrix Electronics and suitable for embedded capacitive touch interface development, MCU-based interactive demo systems, and educational 8-bit microcontroller labs requiring stable component supply and out-of-box usability.
Supply support for CAPTOUCHSENSESK 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 Laboratories Inc. is a fabless semiconductor company headquartered in Austin, Texas, specializing in mixed-signal ICs for timing, MCU, wireless, and sensor applications.
The CAPTOUCHSENSESK belongs to Silicon Labs' ToolStick development platform family, designed to accelerate evaluation and firmware development for their 8-bit C8051 microcontrollers - particularly for human-interface features like capacitive touch, low-power sensing, and USB-debug-enabled prototyping.
FAQ
What is included in the CAPTOUCHSENSESK kit?
The CAPTOUCHSENSESK kit includes the CapTouchSense Daughter Card (CapTouchSenseDC), the ToolStick Base Adapter, and a USB extension cable. The daughter card hosts the C8051F931 MCU, four capacitive touch switches, four LEDs, a mechanical push-button (S2), a 1.5 V A76 battery holder, and a full-pin-access prototyping area. The Base Adapter provides USB-to-C2 conversion for programming and debugging.
Does CAPTOUCHSENSESK require additional software to operate?
Yes. CAPTOUCHSENSESK requires Silicon Labs' Integrated Development Environment (IDE), Keil Demonstration Tools (C51 compiler up to 4 kB), Configuration Wizard 2, and the ToolStick Terminal application - all freely downloadable from www.silabs.com/toolstick and www.silabs.com/mcudownloads. Pre-loaded memory game firmware allows immediate standalone operation without PC connection.
Can CAPTOUCHSENSESK be used for production-level hardware design?
CAPTOUCHSENSESK is a development and evaluation tool, not a production module. However, its CapTouchSenseDC daughter card serves as a functional reference design: all C8051F931 pins are accessible, touch switch layout and firmware calibration methods are documented, and schematics are provided - enabling direct translation of validated touch-sensing topology into custom PCBs.
How is power managed on the CAPTOUCHSENSESK daughter card?
The CapTouchSenseDC board supports dual power sources: USB 5 V (via ToolStick Base Adapter) or a 1.5 V A76 alkaline battery. A physical toggle switch (S1) selects between "TS PWR" (ToolStick power) and "BAT PWR" (battery power). An onboard LP3990SD-1.5 regulator converts 5 V to 3.3 V for MCU logic, while the C8051F931 operates down to 0.9 V from battery - enabling extended low-voltage operation.
What debugging capabilities does CAPTOUCHSENSESK provide?
CAPTOUCHSENSESK enables full in-circuit debugging via the ToolStick Base Adapter's USB-C2 interface. Supported functions include flash programming, real-time code execution control (Go/Stop), breakpoint setting, register and memory inspection, and UART terminal communication through ToolStick Terminal - all within Silicon Labs' IDE or compatible Keil µVision environments using native C2 drivers.
CAPTOUCHSENSESK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- ToolStick
- Packaging:
- Box
- Product Status:
- Obsolete
- Sensor Type:
- Touch, Capacitive
- Sensing Range:
- -
- Interface:
- USB
- Sensitivity:
- -
- Voltage - Supply:
- -
- Embedded:
- Yes, MCU, 8-Bit
- Contents:
- Board(s), Cable(s)
- Utilized IC / Part:
- C8051F931
CAPTOUCHSENSESK FAQ
1.How can I place an order for CAPTOUCHSENSESK through Aetrix?
Please submit a Request for Quotation (RFQ) for CAPTOUCHSENSESK 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 CAPTOUCHSENSESK reliable?
The price and inventory of CAPTOUCHSENSESK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CAPTOUCHSENSESK is usually 5 days.
3.What payment methods are accepted for CAPTOUCHSENSESK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CAPTOUCHSENSESK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CAPTOUCHSENSESK?
CAPTOUCHSENSESK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CAPTOUCHSENSESK 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 CAPTOUCHSENSESK?
For technical support, including CAPTOUCHSENSESK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CAPTOUCHSENSESK requirements.
6.How does Aetrix verify that CAPTOUCHSENSESK is sourced from the original manufacturer or authorized distributors?
All CAPTOUCHSENSESK 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 CAPTOUCHSENSESK meets industry standards.
7.What is the process for return or replacement of CAPTOUCHSENSESK?
All CAPTOUCHSENSESK units undergo pre-shipment inspection (PSI). If there is an issue with CAPTOUCHSENSESK, 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 CAPTOUCHSENSESK part is unused and in its original packaging.
Return procedure for CAPTOUCHSENSESK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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