The product is designed based on the previous generation, BM22S4421-1, with certain functions enhanced. Below is the comparison.
|
BM22S4422-1 |
BM22S4421-1 |
| Operating voltage |
4.0V~12V |
4.0V~12V |
| Operating current |
13mA @5V |
80μA @5m
1.3mA @14m
|
| Sleep mode current |
0.4mA @5V |
4μA @5V |
| Frequency band |
5.8GHz |
5.8GHz |
| Max. detection distance |
20 meters |
14 meters |
| Lighting control function |
O |
O |
| Output power |
-8.5dBm~4.5dBm |
10dBm |
| Operating temperature |
-40~85℃ |
-40~85℃ |
| Interface |
UART |
UART |
| Dimension |
20 x 20 x 3.2 mm |
20 x 20.5 x 2.8 mm |
The product offers a maximum detection range of 20 meters and provides a full 360° detection coverage. It includes a built-in light-sensing function, which is disabled by default. Users must connect a photosensitive component, configure the relevant parameters, and enable the function. Once the function is activated, the product evaluates the ambient light intensity to decide whether to trigger upon detecting motions.
For instance, when applying the product in a sensing light, you can configure the light-sensing threshold. If the ambient light intensity falls below the set threshold and motion is detected, the light will automatically turn on.
We also offer a Setting Tool software that allows users to easily configure various parameters, such as sensing sensitivity, trigger interval, transmission power, and more, giving them full flexibility to customize the settings to their specific needs.
⬥ Refer to ‘UART communication’ paragraph of ‘Software Parameter Adjustment Method’ in the datasheet for more details.
Installation
The below image is the sensing side of the product. When installing it, the sensing side should be directed towards the area to be detected. For example, when installing on the ceiling, the sensing side should face downward. The closer the area is to the product, the higher the sensing sensitivity.
