Board/NBL/NBL1012-dat/NBL1012-dat.md
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+# NBL1012-dat
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+- [legacy wiki page.](https://w.electrodragon.com/w/BK3231)
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Board/NBL/NBL1022-dat/2023-10-19-13-23-35.png
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Board/NBL/NBL1022-dat/NBL1022-dat.md
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+# NBL1022-dat
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+- [legacy wiki page](https://w.electrodragon.com/w/Category:BC-04)
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+## Base Board Pin Definitions
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+![](2023-10-19-13-27-25.png)
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+## Backside Jumper Setup Mode:
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+![](2023-10-19-13-23-35.png)
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+Bottom jumper set hardware / software method for slave / master mode, Default setup for hardware method.
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+| Jumper | Function | Mode | Default |
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+| ------ | ---------------- | ------------------------- | ------- |
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+| SJ2 | master / slave | hardware control M/S mode |
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+| SJ1 | soft / hard Mode | control mode select | Hard |
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+- Top jumper set for slave / master mode.
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+- If you prefer to use software method by AT commands to change slave / mater mode, cut the bottom jumper connection (GND - middle pin), then re-connect to top by solder (VCC-middle pin).