[Chip solution]：BS21
[Communication interface]：UART
[Communication distance]： 270m
[Product size]： 25.5*18mm
Manual Download
| Main parameters | Performance description | Remark | |||
| minimum value | Typical value | maximum value | |||
| Working voltage (V) | 1.8 | 3.3 | 3.6 | - | |
| Supply voltage (V) | - | - | 3.9 | - | |
| Communication level (V) | - | 3.3 | - | There is a risk of burning if using 5V level | |
| Working temperature (℃) | -40 | - | 85 | Industrial grade design | |
| Working frequency band (MHz) | 2402 | - | 2480 | Support ISM band | |
| Transmit power (dBm) | -28 | 0 | 6 | - | |
| Power consumption | Emission current (mA) | - | 12.5 | - | Peak transient current@6dBm |
| - | 5.3 | - | Peak transient current@0dBm | ||
| Receive current (mA) | - | 2.5 | - | - | |
| Sleep current(uA) | - | 6 | - | - | |
| Receiving sensitivity (dBm) | - | -90.6 | - | 4 Mbit/s frame type 1 | |
| Communication distance (m) | - | 270 | - | Clear and open environment, height 1 meter, @6dBm, airspeed 4Mbps | |
| Main parameters | describe | Remark |
| IC solution | BS21 | - |
| Crystal frequency | 32MHz | - |
| Starlight Protocol | SLE 1.0 | - |
| Communication interface | UART | - |
| Packaging method | SMD type | - |
| FLASH | 512KB | - |
| RAM | 160KB | - |
| Kernel | RISC-V | - |
| Overall dimensions (IPEX) | 19.2*18mm | Corresponds to E105-BS21X module, tolerance range ±0.2mm |
| Overall dimensions (PCB) | 25.5*18mm | Corresponds to E105-BS21 module, tolerance range ±0.2mm |
| Antenna interface | IPEX | Equivalent impedance is about 50Ω, corresponding to E105-BS21X module |
| Antenna interface | PCB | Equivalent impedance is about 50Ω, corresponding to E105-BS21 module |
