The Ebyte E79-900DM2005S is a dual-band ARM-based RF SoC module built on the TI CC1352P chip, featuring Sub-1GHz (861-941MHz) and 2.4GHz bands with up to 20dBm/19dBm power over 1.5km Sub-1GHz and 0.12km 2.4GHz range in a 32x20mm SMD package.
| Technical Parameter | E79-900DM2005S Specification | Remarks / Details |
|---|---|---|
| Core SoC Chipset | Texas Instruments CC1352P | Dual-band ARM Cortex-M4F MCU + Radio |
| Operating Frequency Band | Dual-Band: 861 to 941 MHz (Sub-1GHz) & 2.4 GHz | Global Sub-GHz ISM and 2.4GHz spectrum |
| Transmitting Power | Sub-1GHz: Up to 20dBm (19dBm) / 2.4GHz: 5dBm | Integrated Power Amplifier (PA) on Sub-1GHz |
| Communication Distance | Sub-1GHz: 1.5 km / 2.4GHz: 0.12 km (120 m) | Tested in line-of-sight environments |
| Hardware Package & Size | SMD Surface Mount, 32 x 20 mm | Compact footprint for mainboard integration |
| Oscillator Architecture | Low Temperature Drift Oscillator | Ensures high frequency stability in extreme climates |
Practical Application Scenarios
1. Dual-Band Smart Grid Multi-Utility Concentrators
In modern smart metering infrastructure, data aggregators need to connect long-distance static meters while interacting with local handheld diagnostic tools. The E79-900DM2005S utilizes its Sub-1GHz (861-941MHz) band at up to 20dBm to push meter readings over a 1.5km range across urban obstacles, while simultaneously leveraging its 2.4GHz band (0.12km range) to handle short-range local wireless maintenance via mobile configuration devices.
2. Multi-Protocol Industrial Sensor Gateways for Automated Factories
Factory automation environments demand long-range penetration for edge sensors alongside high-throughput 2.4GHz connectivity for localized machine diagnostics. Embedded into custom industrial gateways, the TI CC1352P core allows engineers to run dual-band stacks concurrently, gathering environmental telemetry from distant Sub-1GHz nodes while providing quick 2.4GHz local commissioning links for maintenance technicians.
3. Outdoor Agricultural Telemetry with Extreme Temperature Stability
Agricultural monitoring stations operating outdoors face severe ambient temperature fluctuations that cause frequency drift in standard RF crystals. With its integrated low temperature drift oscillator and high Sub-1GHz transmission budget, the module ensures precise RF tuning across varying field environments, reliably delivering soil moisture and weather telemetry to central collection hubs over 1.5km distances without signal degradation.
FAQ Section
1. What advantages does the TI CC1352P multi-band architecture bring to custom hardware designs?
The TI CC1352P architecture combines a powerful ARM Cortex-M4F microcontroller with a multi-band radio transceiver on a single chip. This allows embedded developers to execute proprietary application code and multi-protocol wireless stacks (Sub-1GHz and 2.4GHz) on a single module without adding an auxiliary external microcontroller.
2. How do the transmission distances and RF power levels differ between the Sub-1GHz and 2.4GHz bands on this module?
On the Sub-1GHz band (861-941MHz), the module leverages an integrated power amplifier delivering up to 20dBm/19dBm output power, achieving an line-of-sight communication distance up to 1.5km. On the 2.4GHz band, it transmits at 5dBm, achieving an operational range of up to 0.12km (120 meters) tailored for short-range high-bandwidth interactions.
3. Why is the low temperature drift design critical for industrial RF deployment?
Radio frequency accuracy depends heavily on crystal oscillator stability. Severe temperature changes cause frequency drift, leading to packet drops, reduced sensitivity, or out-of-band emissions. The low temperature drift design inside the module guarantees consistent carrier frequency precision across harsh indoor and outdoor industrial operating environments.
