EoRa-HUB-900TB LR1121 chip solution dual-frequency LoRa module development board One-Channel Hub Open Source Project
[Interface]：Tpye-C
[Size]：27*54mm
[Introduction]：The EoRa-HUB-900TB wireless module test kit is a dual-band LoRa module development board designed and produced by Ebyte, which is based on the LR1121 chip solution. It consists of an E80 series module (LR1121 module) and an ESP32-S3 series WiFi module. It has a wealth of external pins and a 0.96-inch OLED display, and provides three communication methods: LoRa, Wi-Fi, and Bluetooth. The device has been widely used in the development of the Internet of Things and long-distance communications, especially in the application of SEMTECH One-ChannelHub (LoRaWAN single-channel gateway) technology, and has been recognized by a large number of users.
| Limit parameters | Performance | Remarks | |
| Minimum | maximum | ||
| Supply voltage (V). | 0 | 5.5 | Supply voltages exceeding 5.5 V may cause the module to burn out |
| Blocking power (dBm). | - | 10 | There is a low chance of burndown when used at close range |
| Operating temperature (°C). | -40 | 85 | Industrial grade |
| Parameters of the whole machine | Performance | Remarks | ||
| Minimum | Typical | maximum | ||
| The working voltage of the whole machine (V). | 3.2 | 3.3 | 5 | ≥3.3V guarantees output power |
| UART communication level (V). | 3.3 | There is a risk of burnout with 5V TTL | ||
| Operating temperature (°C). | -40 | - | 85 | Industrial-grade design |
| Wi-Fi parameters | ||||
| Main parameters | Performance | Remarks | ||
| Minimum | Typical | maximum | ||
| Operating frequency band (MHz). | 2412 | - | 2484 | See ESP32-S3 data sheet for details |
| Maximum transmit power (dBm). | 18 | - | 21 | Performance varies under the 802.11 standard and is detailed in the ESP32-S3 data sheet |
| Transmit rate (Mbps). | 1 | - | 150 | The maximum speed is up to 11 Mbps under the 802.11b standard |
| The maximum speed is up to 54 Mbps under the 802.11G standard | ||||
| The maximum speed is up to 150 Mbps under the 802.11n standard | ||||
| Reception sensitivity (dBm). | -98.4 | - | -71.4 | Performance varies under the 802.11 standard and at different transmission rates, as detailed in the ESP32-S3 data sheet |
| Emission current (mA). | 283 | - | 340 | Performance varies under the 802.11 standard and at different transmission rates, as detailed in the ESP32-S3 data sheet |
| Received current (mA). | 88 | - | 91 | Performance varies under the 802.11 standard and at different transmission rates, as detailed in the ESP32-S3 data sheet |
| BLE parameters | ||||
| Main parameters | Performance | Remarks | ||
| Minimum | Typical | maximum | ||
| Operating frequency band (MHz). | 2402 | - | 2480 | See ESP32-S3 data sheet for details |
| Transmit power (dBm). | -24 | 0 | 20 | See ESP32-S3 data sheet for details |
| Transmit rate (Mbps). | 0.125 | - | 2 | See ESP32-S3 data sheet for details |
| Reception sensitivity (dBm). | -104.5 | - | -93.5 | The sensitivity is different at different rates, and the lower the rate, the higher the sensitivity |
| Emission current (mA). | - | - | 380 | - |
| Received current (mA). | - | - | 95 | - |
| RF parameters | Parameter value | Remarks |
| Operating voltage (V). | 1.8-3.7 | ≥ 3.3V can guarantee the output power, and more than 3.8V has the risk of burnout |
| Communication level (V). | 3.3 | There is a risk of burnout when using 5V TTL, so please use the conversion circuit reasonably |
| Operating frequency band (MHz). | 850-930 | @Sub-GHz, the module can be programmed to work at different frequencies |
| 2400-2500 | @2.4GHz, the user can program the module to work at different frequencies | |
| Blocking power (dBm). | 10 | There is a low chance of burndown when used at close range |
| Maximum transmit power ( dBm ). | 22 | @Sub-GHz, the output power can be programmed by the user |
| 13 | @2.4GHz, the output power can be adjusted by the user | |
| Reception sensitivity ( dBm ). | -136 | @Sub-GHz,BWL=125kHz, SF=9 |
| -129 | @2.4GHz,BWL=406kHz, SF=7 | |
| Emission current (mA). | 120 | @433/470MHz, instantaneous power consumption |
| 125 | @868/915MHz, instantaneous power consumption | |
| 35 | @2.4GHz, instantaneous power consumption | |
| Received current (mA). | 9.5 | @Sub-GHz |
| 9 | @2.4GHz | |
| Sleep current (μA). | 10 | The software is turned off and the LoRa radio is not working |
| Reference communication distance ( km ). | ≤5.6 | @Sub-GHz, clear and open environment, antenna gain 3.5dBi, antenna height 2.5m, air rate 2.4kbps |
| ≤2.6 | @2.4GHz, clear and open environment, antenna gain 5dBi, antenna height 2.5m, air rate 2.4kbps |
