Illumination level of common negative and common positive digital tubes
Time:2023-08-21
Views:732
1. Common cathode digital tube
When the bit is selected as low level, select the digital tube. (Because the bit selection is essentially connected to the common terminal, which has the same level as the common terminal)
When the segment is selected as high level, the segment of the selected digital tube lights up. (The level of the segment selection is opposite to the level of the common terminal)
2. Gongyang digital tube
When the bit is selected as high level, select the digital tube.
When the segment is selected as low level, the segment of the selected digital tube lights up.
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