The Ebyte E70 series is an industrial Sub-1GHz pure hardware wireless SoC module based on TI CC1312R (ARM Cortex-M4F @48MHz, 352KB Flash / 80KB RAM), delivering 14dBm transmit power, 1.5km range across 410-490MHz and 850-930MHz bands, dual Stamp Hole/IPEX antenna options, and DC 1.8~3.8V supply for secondary development in smart metering, Wi-SUN, and industrial IoT.
Key Features & Advantages
- Texas Instruments (TI) SimpleLink CC1312R Multi-Standard SoC: Powered by a 48MHz ARM Cortex-M4F application processor, dedicated ultra-low power sensor controller, 352KB in-system programmable Flash, and 80KB ultra-low leakage SRAM.
- Sub-1GHz Industrial Long-Range Communication (14dBm / 1.5km): Delivers up to 14dBm (25mW) RF output power and exceptional receiver sensitivity, achieving reliable line-of-sight wireless communication distances up to 1.5 kilometers.
- High-Precision 48MHz Industrial Crystal Oscillator: Features an industrial-grade temperature-compensated crystal oscillator ensuring extreme frequency stability across harsh -40 to +85 deg C operating environments.
- Dual Antenna Interfaces & Ultra-Compact SMD Stamp Hole Form Factor: Equipped with both an IPEX (U.FL) Generation 1 connector and an SMD stamp hole antenna pad (1.27mm pin pitch, 16 * 26 mm) for flexible enclosure integration.
Core Specifications
| Parameter | Specification / Value |
|---|---|
| SoC Core & Microcontroller | TI CC1312R (ARM Cortex-M4F @ 48MHz + Sensor Controller Engine) |
| Memory Capacity | 352 KB Flash, 80 KB Ultra-Low Leakage SRAM, 8 KB Cache RAM |
| Operating Frequency Band | E70-400M14S1B: 410 ~ 490 MHz | E70-900M14S1B: 850 ~ 930 MHz (868/915MHz) |
| Transmit Power | 14 dBm Max (Approx. 25 mW) |
| Communication Distance | 1.5 km (Clear Line of Sight, External Antenna) |
| Crystal Oscillator | 48 MHz Industrial High-Precision Low-Temperature Drift Crystal |
| Supply Voltage Range | DC 1.8V ~ 3.8V (3.3V Typical, Direct Battery Powered) |
| Supported Protocols & Stacks | TI 15.4-Stack, 6LoWPAN, Wi-SUN, Wireless M-Bus, Proprietary Sub-1GHz RF, (G)FSK/OOK |
| Antenna Form Factor | Dual Antenna: Onboard IPEX Gen-1 (U.FL) Connector and Stamp Hole SMD Pad |
| Package Dimensions & Weight | SMD Stamp Hole (1.27mm Pitch), 16 * 26 mm, 2.5 +/- 0.1 g |
Product Selection Guide
Notice for Selection: Select E70-400M14S1B (410-490MHz / 433MHz) for China / Asia industrial wireless telemetry, or select E70-900M14S1B (850-930MHz / 868MHz / 915MHz) for European CE RED and North American FCC ISM band compliance. Antenna bundle options are available with flexible FPC internal antennas or high-gain rubber duck external antennas.
| Model SKU | Frequency Band | Power & Range | Included Antenna Option | Applicable Region |
|---|---|---|---|---|
| E70-400M14S1B (Module Only) | 410 ~ 490 MHz (433MHz) | 14 dBm / 1.5 km | None (Module Only) | Asia / China (433MHz / 470MHz) |
| E70-400M14S1B + TX433-FPC-3208 | 410 ~ 490 MHz (433MHz) | 14 dBm / 1.5 km | TX433-FPC-3208 (Internal FPC) | Asia / China (433MHz / 470MHz) |
| E70-400M14S1B + TX433-JKS-IPX20 | 410 ~ 490 MHz (433MHz) | 14 dBm / 1.5 km | TX433-JKS-IPX20 (External Whip) | Asia / China (433MHz / 470MHz) |
| E70-900M14S1B (Module Only) | 850 ~ 930 MHz (868/915MHz) | 14 dBm / 1.5 km | None (Module Only) | Europe (868MHz) / Americas (915MHz) |
| E70-900M14S1B + TX915-FPC-8521 | 850 ~ 930 MHz (868/915MHz) | 14 dBm / 1.5 km | TX915-FPC-8521 (Internal FPC) | Americas / Europe (868/915MHz) |
| E70-900M14S1B + TX915-JKS-IPX20 | 850 ~ 930 MHz (868/915MHz) | 14 dBm / 1.5 km | TX915-JKS-IPX20 (External Whip) | Americas / Europe (868/915MHz) |
Industrial Installation & Wiring
The E70 series is designed as an ultra-compact SMD module (16 * 26 mm) with standard 1.27mm pin pitch stamp-hole pads for automated pick-and-place SMT assembly. For RF connectivity, the module features dual options: connect an external antenna to the onboard IPEX Generation 1 (U.FL) receptacle, or route a 50-ohm characteristic impedance microstrip trace from the RF stamp-hole pad to an onboard PCB antenna / SMA connector. Supply DC 1.8V to 3.8V across VCC and GND pins with low-ESR decoupling capacitors placed immediately adjacent to the VCC pads. Dedicated JTAG/cJTAG debugging pins (TCK, TMS, RESET) allow direct connection to TI XDS110 / XDS200 programmers.
Practical Application Scenarios
1. Smart AMR Utility Metering (Wireless M-Bus & Sub-GHz Mesh)
In smart water, gas, and electricity grid metering networks, battery-powered endpoint nodes require multi-year continuous operation with deep sleep power consumption in microamps. The TI CC1312R ultra-low power sensor controller on the E70 module periodically wakes up to read pulse counts and transmits wireless M-Bus packets up to 1.5km back to the neighborhood data collector.
2. Wi-SUN & 6LoWPAN Field Area Network (FAN) for Smart Cities
Municipal street lighting management and smart city sensor grids demand scalable, self-healing IPv6 mesh topologies. Utilizing the E70 series with TI 15.4-Stack and Wi-SUN protocol stacks establishes robust, high-node-count Sub-GHz mesh networks resistant to multi-path fading in dense urban environments.
3. Industrial Wireless Sensor Networks & Predictive Maintenance
Vibration sensors, pressure transmitters, and temperature probes mounted on rotating industrial machinery operate across severe electrical noise. The E70 module transmits high-speed (G)FSK telemetry back to the PLC gateway, eliminating hazardous field wiring across factory production floors.
4. Agricultural Precision Irrigation & Environmental Telemetry
In wide-acre crop monitoring and solar-powered irrigation valves, Sub-1GHz radio signals penetrate heavy foliage and topography far better than 2.4GHz WiFi. Operating across 410-490MHz or 868/915MHz with 14dBm output power, the E70 module ensures reliable sensor telemetry across agricultural fields up to 1.5km per hop.
FAQ Section
1. Is the E70 series pre-programmed with AT commands or factory firmware?
No. The E70 series is a pure hardware SoC module shipped without factory firmware. Embedded developers must write custom firmware using Texas Instruments SimpleLink CC13x2 SDK, Code Composer Studio (CCS), or IAR Embedded Workbench, and flash the program via JTAG/cJTAG interface.
2. How do I switch between the onboard IPEX connector and the Stamp Hole antenna pad?
The module is hardware-configured to route RF energy either through the onboard IPEX Generation 1 (U.FL) connector or the SMD stamp hole RF pad. Ensure proper impedance matching (50 ohms) when designing the host PCB RF microstrip trace from the stamp hole pad.
3. Which debuggers and programmers are compatible with the CC1312R on the E70 module?
The E70 module supports standard 2-wire cJTAG and 4-wire JTAG debugging. It is fully compatible with Texas Instruments official XDS110, XDS200 debuggers, Segger J-Link, and TI LaunchPad evaluation boards running UniFlash or Code Composer Studio.
4. What is the power supply requirement and battery compatibility?
The module operates across a wide DC voltage range of 1.8V to 3.8V (3.3V typical). Thanks to the internal DC-DC converter of the CC1312R SoC, the module can be powered directly from two 1.5V AA/AAA alkaline batteries or a single 3.0V CR2032/CR2450 coin cell without external LDO regulators.
