Limit parameters
| Main parameters | performances | note |
| minimum value | maximum values |
| Supply Voltage | 0 V | 5. 5 V | Supply voltage above 5.5 V may cause module burnout |
| LoRa Blocking Power | - | 10 dBm | Less likely to burn out in close proximity |
| operating temperature | -40 0 C | +85 ° C | industrial grade |
Parameters of the whole machine
| Main parameters | performances | note |
| minimum value | typical value | maximum values |
| Whole machine working voltage (V) | 3.2 | 3. 3 | 5 | 23. 3V guaranteed output power |
| UART communication level (V) |
| 3. 3 |
| Risk of burn-in using 5V TTL |
| Operating temperature (' 0 | -40 | - | +85 | Industrial-grade design |
Wi-Fi parameters
| Main parameters | performances | note |
| minimum value | typical value | maximum values |
| Operating frequency band (MHz) | 2412 | - | 2484 |
|
| Maximum transmit power (dBm) | 18 | - | 21 | See Loxin ESP32-S3 official datasheet for details |
| Transmission rate (Mbps) | 1 | - | 150 | Maximum rate of 11 Mbps under 802.lib standard Maximum speed of 54 Mbps under 802.11g standard Maximum speed of 150 Mbps under 802. lln standard |
| Receiving sensitivity(dBm) | -98.4 | - | -71.4 | See Loxin ESP32-S3 official datasheet for details |
| Emission current (mA) | 286 | - | 340 | See Loxin ESP32-S3 official datasheet for details |
| Operating current (mA) | 88 | - | 91 | See Loxin ESP32-S3 official datasheet for details |
BLE parameters
| BLE parameters |
| Operating frequency band (MHz) | 2402 | - | 2480 | - |
| Transmit power (dBm) | -24 | 0 | 20 | - |
| Transmission rate (Mbps) | 0. 125 | - | 2 | - |
| Emission current (mA) | - | - | 380 | - |
| Operating current (mA) | 一 | - | 95 | - |
| Receiving sensitivity (dBm) | -104. 5 | - | -93.5 | Sensitivity varies at different rates, the lower the rate the higher the sensitivity |
400MHz LoRa Parameters
| 400MHz LoRa Parameters |
| Operating frequency band (MHz) | 410 | - | 493 | Supports ISM bands |
| Transmit power (dBm) | -9 | - | 22 |
|
| Emission current (mA) | - | 120 | 一 | Instantaneous emission power consumption |
| Receiving current (mA) | 一 | 10 | 一 | Flat receiving current |
| Transmit power (dBm) | -9 | 22 | 22 |
|
| Air rate (bps) | 0. 6K |
| 300K | FSK mode, software configuration |
| 0. 018K | - | 62. 5K | LoRa mode, software configuration |
| Receiving sensitivity (dBm) | -147 | -146 | -145 | Airspeed is 0. 3kbps (LoRa) |
Internal LoRa module parameters
| LoRa module main parameters | descriptive | note |
| reference distance | 6000 m | Clear and open environment, antenna gain 5dBi, antenna height 2.5 meters, LoRa air rate 0. 3kbps. (This parameter is measured in the open area of Chengdu city.) |
| FIFO | 256 Btye | Maximum length of a single transmission |
| crystal frequency | 32 MHz | passive crystal |
| modulation method | GFSK/LoRa | Recommended for LoRa |
| Package | chip-based | - |
| interface method | SPI | - |
| Overall Dimension | 10*10*2. 5 mm | - |
| Antenna Interface | SMA/IPEX | Characteristic impedance approx. 50 ohms |
| Pin number | Pin name | Pin direction | Pin usage |
| 1 | VCC | power supply | Power pin, can be used as 5V power output after normal power supply |
| 2 | GND | power supply | Power GND |
| 3 | VDD | power supply | The power pin can be used as a 3.3V power output after normal power supply. External power input is prohibited. |
| 4 | GND | power supply | Power GND |
| 5 | GPIO42 | input /Output | - |
| 6 | GPIO46 | input /Output | - |
| 7 | GPIO45 | input /Output | - |
| 8 | GPIO41 | input /Output | - |
| 9 | GPIO40 | input /Output | - |
| 10 | GPIO39 | input /Output | - |
| 11 | U0RXD | input | UART serial port RXD |
| 12 | U0TXD | output | UART serial port TXD |
| 13 | GPIO38 | input /Output | - |
| 14 | GPIO16 | input /Output | - |
| 15 | GPIO15 | input /Output | - |
| 16 | RST | input /Output | Connect to ESP32-S3 reset pin |
| 17 | GPIO08 | input /Output | Connect to the reset pin of the LoRa module |
| 18 | GPIO12 | input /Output | - |
| 19 | GPIO48 | input /Output | - |
| 20 | GPIO47 | input /Output | - |
| 21 | GPIO33 | input /Output | Connect to DIO1 of LoRa module |
| 22 | GPIO34 | input /Output | BUSY connected to LoRa module |
| 23 | GPIO35 | input /Output | - |
| 24 | GPIO0 | input /Output | BOOT button connected to the base panel |
| 25 | GPIO36 | input /Output | - |
| 26 | GPIO37 | input /Output | LED connected to base plate |
