Silicon Labs SLTB001A
- Part No.:
- SLTB001A
- Manufacturer:
- Silicon Labs
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
SLTB001A.pdf
- Description:
- THUNDERBOARD SENSE
- Quantity:
- Payment:

- Shipping:

Inventory:3,066
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Product details
Overview
SLTB001A from Silicon Labs is a Bluetooth Low Energy development kit built around the EFR32 Wireless SoC, integrating humidity/temperature, UV/ambient light, indoor air quality (CCS811), 6-axis inertial, barometric pressure, and MEMS microphone sensors. It delivers real-time sensor-to-cloud data via BLE to iOS/Android apps and Firebase-based web client.
For engineers reviewing the SLTB001A datasheet, SLTB001A pinout, SLTB001A application, or SLTB001A equivalent, this kit serves as a production-ready evaluation platform for BLE sensor node prototyping, cloud-connected IoT edge device validation, and firmware stack integration with Silicon Labs' Bluetooth LE protocol stack and Board Support Package.
Technical Context
The SLTB001A implements a complete embedded BLE sensor node with integrated EFR32MG1P microcontroller (ARM Cortex-M4, 32-bit, 40 MHz), on-board sensor fusion firmware, and pre-certified Bluetooth 5.0 radio stack. It supports GATT-based services for all onboard sensors and RGB LED control.
Power management includes dual-source operation (USB or CR2032), dynamic sensor enable/disable based on source impedance classification, and battery-level estimation. Firmware state machine handles advertisement, connection, streaming, and sleep modes with 30-second BLE advertising timeout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core MCU | EFM32MG1P732F256GM32 (EFR32MG1P) - ARM Cortex-M4 @ 40 MHz, 256 KB Flash, 32 KB RAM |
| Wireless Standard | Bluetooth 5.0 Low Energy - Pre-certified RF module with integrated antenna; supports GATT server for sensor services |
| Sensors | Si7021 (RH/T), SI1133 (UV/ALS), CCS811 (eCO₂/VOC), BME280 (pressure/humidity/temp), ICM-20648 (6-axis IMU), PDM MEMS mic |
| LEDs | 4× high-brightness RGB LEDs - Individually addressable via GPIO/PWM; controllable via BLE service |
| Power Options | USB 5 V or CR2032 coin cell - Automatic source classification disables power-hungry peripherals (RGB, CCS811) when coin cell detected |
| Firmware Stack | Silicon Labs Bluetooth LE SDK v2.x+ - Includes BSP drivers, sensor abstraction layer, and BLE GATT services for all peripherals |
Availability
SLTB001A is available at Aetrix Electronics and suitable for BLE sensor node evaluation, IoT edge device prototyping, and cloud-connected environmental monitoring applications requiring stable component supply and full-stack reference implementation.
Supply support for SLTB001A 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 wireless SoCs, timing solutions, and IoT infrastructure technologies.
The SLTB001A belongs to Silicon Labs' Thunderboard family - purpose-built as turnkey hardware/software evaluation platforms for rapid development of energy-efficient, sensor-rich Bluetooth LE end nodes.
FAQ
What is the primary function of the SLTB001A?
The SLTB001A is a fully integrated Bluetooth Low Energy development kit designed to accelerate prototyping of sensor-based IoT edge devices. It combines an EFR32 wireless SoC with seven calibrated sensors, RGB LEDs, and open-source BLE firmware and mobile/cloud applications - enabling immediate out-of-box sensor data collection, visualization, and cloud upload without custom hardware or stack development. The SLTB001A provides production-relevant firmware architecture and certified RF performance.
Does the SLTB001A include a pre-flashed Bluetooth LE stack?
Yes, the SLTB001A ships with Silicon Labs' official Bluetooth LE protocol stack pre-installed and configured for all onboard sensors and peripherals. It implements standard GATT services for temperature, humidity, pressure, motion, gas, light, UV, and LED control - all accessible via the Thunderboard mobile app or custom BLE clients. The SLTB001A firmware is open source and upgradable using Simplicity Studio and the EFR32's bootloader.
Can the SLTB001A operate on battery power only?
Yes, the SLTB001A supports standalone operation using a CR2032 coin cell battery. Its firmware automatically detects the power source impedance and disables high-current peripherals - including the RGB LEDs and CCS811 gas sensor - to prevent brown-out and extend runtime. Battery level estimation is reported to the mobile app. The SLTB001A remains fully functional for core sensing (temperature, humidity, pressure, motion) and BLE communication under battery power.
Is source code provided for the SLTB001A firmware and applications?
Yes, all software components for the SLTB001A are open source: the embedded firmware (including sensor drivers and BLE GATT services), iOS/Android mobile app, and Firebase-based web client are publicly available on Silicon Labs' GitHub repositories and Simplicity Studio. This enables full customization, porting to other hardware, and integration into proprietary cloud infrastructures - a key design value of the SLTB001A for engineering teams building differentiated IoT products.
How is sensor calibration handled on the SLTB001A?
The SLTB001A performs automatic gyroscope calibration upon entering motion view in the mobile app, requiring the board to be placed on a level surface in a fixed orientation matching the on-screen reference image. Recalibration can be triggered manually via the app's calibrate button. Environmental sensors (e.g., CCS811) require a 20-minute warm-up period before reporting valid eCO₂/VOC values - during which the SLTB001A displays zero values. Calibration routines are implemented in firmware and exposed via BLE characteristics.
SLTB001A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- Mighty Gecko
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Transceiver
- Frequency:
- -
- Contents:
- Board(s)
- Utilized IC / Part:
- EFR32MG
SLTB001A FAQ
1.How can I place an order for SLTB001A through Aetrix?
Please submit a Request for Quotation (RFQ) for SLTB001A 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 SLTB001A reliable?
The price and inventory of SLTB001A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLTB001A is usually 5 days.
3.What payment methods are accepted for SLTB001A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLTB001A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLTB001A?
SLTB001A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLTB001A 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 SLTB001A?
For technical support, including SLTB001A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLTB001A requirements.
6.How does Aetrix verify that SLTB001A is sourced from the original manufacturer or authorized distributors?
All SLTB001A 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 SLTB001A meets industry standards.
7.What is the process for return or replacement of SLTB001A?
All SLTB001A units undergo pre-shipment inspection (PSI). If there is an issue with SLTB001A, 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 SLTB001A part is unused and in its original packaging.
Return procedure for SLTB001A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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