The Ebyte E79-400DM2005S dual-band SMD RF SoC module adopts TI CC1352P ARM Cortex-M4F chip, supports 431-500MHz Sub-G (20dBm, 1500m) and 2400-2500MHz 2.4G (5dBm, 120m) dual ISM bands, 2.1-3.8V wide supply, ultra-low 2uA sleep current, 32*20mm compact stamp-hole size, supporting OEM custom firmware for smart metering and battery-powered IoT nodes.
| Parameter Item | E79-400DM2005S Specs |
|---|---|
| Model | E79-400DM2005S |
| Core RF MCU Chip | TI CC1352P (ARM Cortex-M4F 48MHz) |
| Dual Working Bands | 431~500MHz Sub-GHz / 2360~2500MHz 2.4GHz |
| Max TX Power | 20 dBm (Sub-G) / 5 dBm (2.4G) |
| Reference Communication Range | 1500m (433M) / 120m (2.4G) |
| Supply Voltage Range | 2.1V ~ 3.8V, stable output above 3.3V |
| Current Consumption | TX 75mA / RX 6.5mA / Sleep 2uA |
| On-Chip Memory | 352KB FLASH, 80KB SRAM, 256KB ROM |
| Modulation Mode | GFSK |
| Package Type | SMD Stamp Hole 1.27mm Pitch |
| Antenna Interface | IPEX external port + onboard 2.4G PCB antenna |
| Dimension | 32mm * 20mm |
| Net Weight | 2.8g |
| Operating Temperature | -40 Celsius ~ +85 Celsius Industrial Grade |
| Custom Service | Custom firmware, frequency, transmission logic supported |
| Main Parameters | Value |
Remarks | |
| Min. | Max | ||
|
Input Voltage(V) |
0 | 3.8 |
Permanent damage occurred when voltage is over 3.8V |
|
Blocking Power(dBm) |
- | 10 |
Low chance to be damaged for short-distance transceiving |
|
Working Temp.(℃) |
-40 | +85 |
Industrial Grade |
| Main Parameters | Value |
Remarks | |||
| Min. | Typical | Max | |||
|
Working Voltage(V) |
2.1 | 3.3 | 3.8 |
Voltage above 3.3V can guaranty Max TX power |
|
|
Tx Electrical Level(V) |
- | 3.3 | - |
5V TTL could cause permanent damage |
|
|
Working Temp (℃) |
-40 | - | +85 |
Industrial Grade |
|
|
Working Frequency (MHz) |
431 | - | 500 |
Applicable for ISM channel |
|
|
Power Consumption |
TX Current(mA) | - | 75 | - |
Instantaneous power |
| RX Current(mA) | - | 6.5 | - |
/ |
|
| Sleeping Current(μA) | - | 2 | - |
Software off |
|
|
Max TX Power(dBm) |
19 | 20.0 | 20.5 |
/ |
|
|
RX Sensitivity(dBm) |
- | -122 | - |
At 2.5 kbps air rate |
|
| Main Parameters | Value |
Remarks | |||
| Min. | Typical | Max | |||
|
Working Voltage(V) |
1.8 | 3.3 | 3.8 |
Voltage above 3.3V can guaranty Max TX power |
|
|
Tx Electrical Level(V) |
- | 3.3 | - |
5V TTL could cause permanent damage |
|
|
Working Temp (℃) |
-40 | - | +85 |
Industrial Grade |
|
|
Working Frequency (MHz) |
2360 | - | 2500 |
Applicable for ISM channel |
|
|
Power Consumption |
TX Current(mA) | / | 10.5 | / |
Instantaneous power |
| RX Current(mA) | / | 7.5 | / | ||
|
Max TX Power(dBm) |
4 | 4.5 | 5 |
/ |
|
|
RX Sensitivity(dBm) |
/ | -103 | / |
BLE 5 Coding |
|
| Parameters | Value |
Remarks |
|
Reference Range |
1500m@SUB-1GHz | Conditions: Clear Sky, Antenna Gain 5dBi, Antenna Height 2.5m, Air rate 1kbps |
| 120m@2.4G | Conditions: Clear Sky, Antenna Gain 5dBi, Antenna Height 2.5m, Air rate 1Mbps |
|
|
TCXO Frequency |
48MHz/32.768k | High rate at 48MHz/Low Rate at 32.768k |
|
Protocol |
GFSK | / |
|
Encapsulation |
SMD | / |
|
Interface Type |
1.27mm Stamp Hole | / |
|
IC Model |
CC1352P1F3RGZ | / |
|
FLASH |
352KB | / |
|
RAM |
80KB | / |
|
Core |
Arm ® Cortex ® -M4F | / |
|
Size |
32*20mm | / |
|
Antenna Interfaces |
IPEX/Stamp Hole@sub-1G, PCB Antenna@2.4G |
Equivalent Impedance is around 50Ω |
Company Profile
Development Testin
Practical Application Scenarios
1. Global Smart Water & Electric Meter Reading System
Deploy E79-400DM2005S inside residential electricity and water meters, match E870-S LoRaWAN industrial gateway for remote meter data aggregation. The long-range 433MHz Sub-G band penetrates building walls to transmit meter pulse data to neighborhood gateways, while built-in 2.4G radio supports local handheld meter reader short-distance on-site debugging. Ultra-low 2uA sleep current extends lithium battery service life of passive metering equipment for over 5 years.2. European Agricultural Greenhouse Multi-Sensor Nodes
Integrate this dual-band SoC module with EID041 temperature/humidity sensors for distributed greenhouse monitoring. Sub-G long-distance radio transmits field environmental data to farm edge controllers; 2.4G channel connects portable Bluetooth handheld terminals for farmers to view real-time crop data on mobile phones without extra wireless chips. Wide industrial temperature range adapts cold winter and high-temperature summer greenhouses.3. North American Portable Industrial Handheld Detectors
E79 module is embedded into portable gas and vibration detectors for factory safety inspection. 433MHz long-range wireless sends abnormal alarm signals to central SCADA panels, and 2.4G band syncs detection logs to inspectors’ mobile devices. Compact 32*20mm SMD size fits tiny handheld PCB layout, and 2.1-3.8V low voltage matches single lithium battery power supply.4. Southeast Asian Solar-Powered Outdoor Asset Trackers
Used for remote livestock and container tracking equipment paired with E220 LoRa gateway. Sub-G 1.5km transmission covers vast rural farmland without cellular signal, ultra-low sleep power reduces solar panel capacity requirements. Dual-band design allows on-site device parameter configuration via 2.4G wireless without wired UART cables.5. European Cabinet Equipment Wireless Alarm Terminals
Installed inside distribution cabinets with MA01 remote IO modules to collect door contact and overheat signals. 433MHz band transmits fault alerts to workshop monitoring host across multiple workshop partitions, 2.4G supports local maintenance staff wireless parameter modification, industrial wide temperature works stably in unventilated metal electrical cabinets.
