My Inquiry
My Account
Silicon Labs SI7005USB-DONGLE
- Part No.:
- SI7005USB-DONGLE
- Manufacturer:
- Silicon Labs
- Category:
- Sensor Evaluation Boards
- Package:
- Datasheet:
-
SI7005USB-DONGLE.pdf
- Description:
- TOOLSTICK FOR SI7005
- Quantity:
- Payment:
- Shipping:
Inventory:1,107
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI7005USB-DONGLE from Silicon Laboratories is an evaluation dongle kit designed to interface the Si7005 relative humidity and temperature sensor with a Windows PC via USB. It integrates one Si7005 sensor, a C8051F381 USB microcontroller, I²C bus routing, and on-board power regulation. The kit enables real-time sensor data acquisition, dew point calculation, and logging in tab-delimited format for environmental monitoring prototyping.
For engineers reviewing the SI7005USB-DONGLE datasheet, SI7005USB-DONGLE pinout, SI7005USB-DONGLE application, or SI7005USB-DONGLE equivalent, this kit serves as a ready-to-run hardware-software platform for rapid validation of Si7005 sensor performance, I²C communication timing, thermal isolation layout practices, and dew point algorithm implementation under ambient conditions.
Technical Context
The SI7005USB-DONGLE implements a host-side USB-to-I²C bridge using the C8051F381 microcontroller, which handles USB enumeration, HID-class communication, and bidirectional I²C transactions with the Si7005 sensor. Sensor readings are acquired at user-configurable intervals (1–65535 s) and processed in real time for temperature, RH, and dew point.
Hardware design emphasizes thermal isolation: the Si7005 is placed on a cutout PCB region with no ground plane underneath, minimizing conductive heat transfer from the MCU and USB interface circuitry. The board supports expansion via J2 connector for a second Si7005-EVB sensor, maintaining separate I²C addressing through CS pin control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensor IC | Si7005 RH/temperature sensor with integrated ADC, signal conditioning, and I²C interface |
| Host Interface | USB 2.0 Full-Speed (12 Mbps), HID-compliant, no external driver required on Windows XP/Vista/7 |
| Sampling Interval | Configurable from 1 to 65535 seconds - enables long-term environmental logging without host polling |
| Dew Point Calculation | On-GUI computation using August-Roche-Magnus formula (valid for 0–60°C, 1–100% RH, 0–50°C Td) |
| Data Output Format | Tab-delimited ASCII text file compatible with Excel; supports absolute time or relative seconds timebase |
| Expansion Support | J2 ribbon connector accepts Si7005-EVB for dual-sensor evaluation with independent CS control |
Availability
SI7005USB-DONGLE is available at Aetrix Electronics and suitable for environmental sensor validation, HVAC prototyping, and lab-grade climate monitoring requiring stable component supply, traceable firmware, and out-of-box GUI operation on legacy Windows platforms.
Supply support for SI7005USB-DONGLE 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 is a U.S.-based semiconductor company specializing in mixed-signal ICs for timing, sensing, connectivity, and energy-efficient MCU applications.
The SI7005USB-DONGLE belongs to Silicon Labs' environmental sensor evaluation platform family, designed to accelerate development of accurate, thermally isolated RH/temperature measurement systems for indoor air quality, weather stations, and industrial process monitoring.
FAQ
What is the SI7005USB-DONGLE used for?
The SI7005USB-DONGLE is an evaluation dongle that enables immediate PC-based acquisition and visualization of temperature and relative humidity data from the Si7005 sensor. It includes preloaded firmware on the C8051F381 microcontroller and bundled LabVIEW-based GUI software for real-time plotting, dew point calculation, and tab-delimited data logging - eliminating the need for custom host code during early-stage sensor validation.
Does the SI7005USB-DONGLE require drivers on Windows?
The SI7005USB-DONGLE uses HID-class USB communication and requires no custom drivers on supported Windows systems (XP, Vista, 7). However, the setup.exe installer must be run before first connection to register the device interface and GUI application. Driver installation occurs silently during GUI setup; manual INF editing or third-party tools are not needed for basic operation of the SI7005USB-DONGLE.
Can the SI7005USB-DONGLE support more than one Si7005 sensor?
Yes - the SI7005USB-DONGLE has a J2 ribbon connector that accepts the separately ordered Si7005-EVB board, enabling dual-sensor evaluation. The C8051F381 firmware detects and communicates with both sensors via I²C, using the CS pin to select between them. Both sensors share the same SDA/SCL lines but operate independently under host control in the SI7005USB-DONGLE GUI.
What temperature and humidity accuracy does the SI7005USB-DONGLE deliver?
The SI7005USB-DONGLE inherits the Si7005 sensor's specified accuracy: ±0.5 °C temperature (0–85 °C) and ±3.6 %RH (20–80 %RH, 25 °C). These values reflect the calibrated performance of the onboard Si7005 die; actual system-level accuracy depends on thermal isolation integrity, airflow, and enclosure design - features intentionally demonstrated by the SI7005USB-DONGLE's cutout PCB layout.
Is the SI7005USB-DONGLE compatible with modern Windows versions like Windows 10 or 11?
The official GUI software for the SI7005USB-DONGLE was validated only for Windows XP, Vista, and 7. While it may run in compatibility mode on Windows 10/11, Silicon Labs does not guarantee functionality, and HID enumeration or LabVIEW runtime dependencies may fail. For new designs, Silicon Labs recommends migrating to newer evaluation platforms such as the Simplicity Studio–based Si7021 or Si705x kits instead of relying on SI7005USB-DONGLE on modern OSes.
SI7005USB-DONGLE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Not For New Designs
- Sensor Type:
- Humidity, Temperature
- Sensing Range:
- -
- Interface:
- I2C, USB
- Sensitivity:
- -
- Voltage - Supply:
- 5V, USB
- Embedded:
- Yes, MCU, 8-Bit
- Contents:
- Board(s)
- Utilized IC / Part:
- Si7005
SI7005USB-DONGLE FAQ
1.How can I place an order for SI7005USB-DONGLE through Aetrix?
Please submit a Request for Quotation (RFQ) for SI7005USB-DONGLE 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 SI7005USB-DONGLE reliable?
The price and inventory of SI7005USB-DONGLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI7005USB-DONGLE is usually 5 days.
3.What payment methods are accepted for SI7005USB-DONGLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI7005USB-DONGLE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI7005USB-DONGLE?
SI7005USB-DONGLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI7005USB-DONGLE 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 SI7005USB-DONGLE?
For technical support, including SI7005USB-DONGLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI7005USB-DONGLE requirements.
6.How does Aetrix verify that SI7005USB-DONGLE is sourced from the original manufacturer or authorized distributors?
All SI7005USB-DONGLE 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 SI7005USB-DONGLE meets industry standards.
7.What is the process for return or replacement of SI7005USB-DONGLE?
All SI7005USB-DONGLE units undergo pre-shipment inspection (PSI). If there is an issue with SI7005USB-DONGLE, 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 SI7005USB-DONGLE part is unused and in its original packaging.
Return procedure for SI7005USB-DONGLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI7005USB-DONGLE Tags
-
1782
Adafruit Industries LLC
-
SEN0142
DFRobot
-
2857
Adafruit Industries LLC
-
3316
Adafruit Industries LLC
-
2652
Adafruit Industries LLC
-
3317
Adafruit Industries LLC
-
163
Adafruit Industries LLC
-
SEN-09269
SparkFun Electronics
-
3709
Adafruit Industries LLC
-
1018
Adafruit Industries LLC
-
VL53L5CX-SATEL
STMicroelectronics
-
3387
Adafruit Industries LLC
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
