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Semtech Corporation IOT434STK1-8
- Part No.:
- IOT434STK1-8
- Manufacturer:
- Semtech Corporation
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
IOT434STK1-8.pdf
- Description:
- 434MHZ IOT STARTER KIT W 8-CH
- Quantity:
- Payment:
- Shipping:
Inventory:4,632
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Product details
Overview
IOT434STK1-8 from Semtech is a battery-powered LoRaWAN sensor node development platform operating at 434 MHz, integrating SX1276 LoRa transceiver, STM32L151C8U6 MCU, MPL3115A2 pressure/temperature/altitude sensor, MMA8451Q accelerometer, MAG3110 magnetometer, SX9500 SAR proximity sensor, SIM39EA GPS module, and onboard charging circuitry. It delivers -139 dBm receiver sensitivity at 300 bps, 14 dBm default output power (up to 20 dBm), and supports USB-based firmware updates via DFU bootloader for rapid IoT prototyping in environmental monitoring and asset tracking.
For engineers reviewing the IOT434STK1-8 datasheet, pinout, applications, or equivalent options, this page provides verified hardware architecture, real-world power consumption data (e.g., 90 mA max TX current at 434 MHz), confirmed sensor interfaces (I²C addresses: 0x1C, 0x0E, 0x60, 0x28, 0x3E, 0xA8), and LoRaWAN-compliant payload structure - all validated against Semtech's official User Guide V0.3 (Nov 2015).
Technical Context
The IOT434STK1-8 implements a complete LoRaWAN Class A end-node stack on STM32L151C8U6, with SX1276 handling physical layer modulation (LoRa and FSK) across 434/470 MHz ISM bands. Its RF front-end includes SMA connector for external antenna (0 dBi gain) and internal 2 dBi antenna, supporting configurable spreading factors and link budgets exceeding 155 dB in LoRa mode.
Power management integrates SC811/SC813 linear Li-ion charger (500 mA max), GT423450AR 3.7 V / 800 mAh battery, and dual-rail DC-DC conversion: direct battery supply to SX1276+MCU, buck-boost for peripherals. Sensor fusion is enabled via dedicated I²C bus with fixed slave addresses and autonomous interrupt-driven operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 434 MHz / 470 MHz ISM band - enables regional compliance for Asia-Pacific deployments without hardware change. |
| RF Transceiver | SX1276 LoRa + FSK modem - provides >155 dB link budget and integrated packet engine to reduce host MCU overhead. |
| Microcontroller | STM32L151C8U6 ARM Cortex-M3 - runs embedded LoRaWAN stack and manages all sensors via I²C with ultra-low-power sleep modes. |
| Output Power | 14 dBm default, up to 20 dBm @434 MHz - meets ETSI/FCC spectral mask requirements while maximizing range in dense urban environments. |
| Receiver Sensitivity | -139 dBm @300 bps - enables reliable reception at extreme distances (>5 km line-of-sight) with minimal gateway infrastructure. |
| Battery & Charging | GT423450AR 3.7 V / 800 mAh Li-ion + SC811/SC813 charger - supports 500 mA USB charging and runtime extension via deep-sleep current <10 µA. |
| Integrated Sensors | MPL3115A2 (pressure/temp/altitude), MMA8451Q (14-bit 3-axis accel), MAG3110 (3-axis mag), SX9500 (4-channel SAR) - enable multi-modal environmental and motion awareness without external components. |
| GPS Module | SIM39EA with NMEA UART output - delivers geolocation data synchronized with LoRaWAN uplinks for asset tracking applications. |
Availability
IOT434STK1-8 is available at Aetrix Electronics and suitable for environmental monitoring, industrial asset tracking, smart agriculture telemetry, and academic LoRaWAN protocol validation requiring stable component supply and full-stack demonstration capability.
Supply support for IOT434STK1-8 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for enterprise computing, communications, and IoT markets.
The IOT434STK1-8 belongs to Semtech's Wireless, Sensing and Timing product family - designed explicitly as a reference-grade, field-deployable LoRaWAN end-node platform to accelerate customer evaluation of long-range, low-power wide-area network solutions.
FAQ
What is the primary function of the IOT434STK1-8?
The IOT434STK1-8 is a fully integrated LoRaWAN sensor node development kit operating at 434 MHz. It combines SX1276 LoRa transceiver, STM32L151C8U6 MCU, multiple environmental/motion sensors, GPS, and battery charging into a single handheld unit. The IOT434STK1-8 functions as a ready-to-deploy Class A end-node for evaluating LoRaWAN network performance, sensor fusion algorithms, and low-power IoT system design without custom hardware development.
Which frequency band does the IOT434STK1-8 support, and is it certified for regional use?
The IOT434STK1-8 operates in the 434 MHz / 470 MHz ISM band, specifically targeting Asia-Pacific regulatory domains. It complies with both ETSI and FCC requirements as stated in Semtech's documentation, and its SX1276 transceiver supports configurable output power (14 dBm default, up to 20 dBm) and adaptive data rates to meet regional spectral mask and duty-cycle restrictions. The IOT434STK1-8 uses an SMA connector for external antenna compatibility with certified 434 MHz antennas like AC-Q433-ZW-SMA.
How is firmware updated on the IOT434STK1-8, and what tools are required?
Firmware on the IOT434STK1-8 is updated via USB using STMicroelectronics' DfuSe utility and the built-in DFU bootloader. Users enter bootloader mode by holding the "Radio" button then pressing the "Power" button. The device appears as an STM32 DFU device in Windows Device Manager, and firmware in .dfu format is loaded through DfuSe Demo software. This method ensures safe, field-upgradable operation of the IOT434STK1-8 without requiring JTAG/SWD debug hardware.
What sensors are integrated into the IOT434STK1-8, and how are they interfaced?
The IOT434STK1-8 integrates MPL3115A2 (pressure/temperature/altitude), MMA8451Q (14-bit 3-axis accelerometer), MAG3110 (3-axis magnetometer), and SX9500 (4-channel SAR proximity sensor), all connected via I²C bus with fixed addresses: 0x60, 0x1C, 0x0E, and 0x28 respectively. These sensors operate autonomously with interrupt-driven wake-up, minimizing MCU intervention. The IOT434STK1-8 also includes SIM39EA GPS module via UART and SX1509 I/O expander (0x3E) for LED control and status reporting.
What power sources and battery specifications does the IOT434STK1-8 support?
The IOT434STK1-8 supports dual power sources: 5 V USB input and internal GT423450AR lithium-ion battery (3.7 V nominal, 800 mAh capacity). Charging is managed by SC811/SC813 linear charger ICs delivering up to 500 mA. The IOT434STK1-8 achieves ultra-low quiescent current in deep-sleep mode (<10 µA), enabling multi-month operation on a single charge. Measured operational currents include 90 mA max during 434 MHz transmission and 47 mA during receive + GPS acquisition.
IOT434STK1-8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Transceiver
- Frequency:
- 434MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- -
IOT434STK1-8 FAQ
1.How can I place an order for IOT434STK1-8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IOT434STK1-8 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 IOT434STK1-8 reliable?
The price and inventory of IOT434STK1-8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IOT434STK1-8 is usually 5 days.
3.What payment methods are accepted for IOT434STK1-8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IOT434STK1-8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IOT434STK1-8?
IOT434STK1-8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IOT434STK1-8 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 IOT434STK1-8?
For technical support, including IOT434STK1-8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IOT434STK1-8 requirements.
6.How does Aetrix verify that IOT434STK1-8 is sourced from the original manufacturer or authorized distributors?
All IOT434STK1-8 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 IOT434STK1-8 meets industry standards.
7.What is the process for return or replacement of IOT434STK1-8?
All IOT434STK1-8 units undergo pre-shipment inspection (PSI). If there is an issue with IOT434STK1-8, 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 IOT434STK1-8 part is unused and in its original packaging.
Return procedure for IOT434STK1-8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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