这里会显示出您选择的修订版和当前版本之间的差别。
两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 | ||
e007_en [2021/06/09 14:02] leo |
e007_en [2022/04/23 16:45] (当前版本) |
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3MM infrared LED can emit infrared light (not visible to the naked eye), the size is (8x24MM)\\ | 3MM infrared LED can emit infrared light (not visible to the naked eye), the size is (8x24MM)\\ | ||
Its two ends are cross grooves, which can pass through the cross axis for fixing.\\ | Its two ends are cross grooves, which can pass through the cross axis for fixing.\\ | ||
- | One end with a white mark is connected to the negative pole (-) of the power supply, and the other is connected to the positive pole (+).\\ | + | One end with a white mark is connected to the negative pole (-) of the power supply, and another |
**Note:** \\ | **Note:** \\ | ||
1. When using LEDs, the best one is [[: | 1. When using LEDs, the best one is [[: |