M7131 is a high-performance UHF read-write module developed with great concentration. The output power of the module can be adjusted in a wide range up to 0dBm~+33dBm. The second speed can be stably up to 800 times per second (in a specific mode); the dense tag group reading performance is super strong, and in the scene of more than 1,000 tags, more than 1,000 tags can be read in 5 seconds. At the same time, M7131 adopts a compact structure design, small size (56.5*36.0*4.2 mm), and its working voltage is a wide voltage design (DC4.0~5.5V), which is suitable for various handheld devices and fixed equipment.
| pins | Name | Description |
| 1 | UART TX | Serial interface transmission, TTL level, low level is 0V, high level is 3.3V |
| 2 | UART RX | Serial interface reception, TTL level, low level is 0V, high level is 3.3V～5.0V |
| 3 | GPIO3 | Reserved bit |
| 4 | GPIO2 | Reserved bit |
| 5 | GPIO1 | Reserved bit |
| 6 | P_EN | |
| 7 | GND | GND |
| 8 | GND | GND |
| 9 | VCC | DC power supply, the input voltage is 4.0V ~ 5.5V, the maximum working current of M7131 is 2.5A under 5V power supply, so sufficient power supply current should be considered when designing the circuit ; |
| 10 | VCC | DC power supply, the input voltage is 4.0V ~ 5.5V, the maximum operating current of M7131 is 2.5A under 5V power supply, so sufficient power supply current should be considered when designing the circuit ; |
| Name | M7131 |
| Air Interface Protocol | EPC global UHF Class 1 Gen 2/ISO 18000-6C |
| Working Frequency | 840～960MHz (default frequency band 902～928MHz) |
| Support area | China, Europe, America, Korea, Japan, Taiwan… |
| Working Voltage | DC4.0V～5.5V |
| Peak operating current | ≤2.5A |
| Standby current | ≤20mA |
| Sleep current | ≤1mA |
| The maximum output power of RF port | 33dBm |
| Operating temperature | -20℃～60℃ |
| Working Humidity | ≤95%（+25℃） |
| Storage temperature | -40℃～85℃ |
| Maximum receiver sensitivity | -82dbm |
| Antenna Interface Impedance | 50Ω |
| Serial port communication parameters | Baud rate adjustable (default 115200bps), parity: none,
Data bits: 8 bits, stop bits: 1 bit |
| Power output settings | 0～33dBm adjustable/adjustable minimum interval is 1dBm (default 33dBm) |
| DRMmode | Support |
| RSSI | Support |
| High temperature automatic protection function | Support |
| Power Enable | Support |
| GPIOInterface | Support |
| Antenna interface | MMCX |
| Antenna detection function | Support |
| FPCInterface | 10PIN/1.0mm/top connection |
| Optional Development Board Kit | The company has developed a corresponding development board kit for the single-channel read-write module, coupled with the UHF demonstration software DEMO, customers can easily and quickly familiarize themselves with and use the single-channel module , and carry out relevant hardware and software development to shorten the development cycle;
Single-channel read-write module development board peripheral interface: RS-232; The development board kit includes: single-channel read-write module + 1 set of development board, 1 12V power adapter, 1 interface cable; development board size: 22.0*12.0*3.5CM; Note: The relevant configuration of the development board must be purchased separately;
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图1 M7131外观尺寸图
图2 M7173产品实物图
