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Optimizations to README
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@ -68,7 +68,7 @@ Many DIY enthusiasts commonly make certain mistakes during the building process.
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https://www.lcsc.com/product-detail/Signal-Switches-Encoders-Decoders-Multiplexers_Texas-Instruments-TCA9548APWR_C130026.html
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https://www.lcsc.com/product-detail/Signal-Switches-Encoders-Decoders-Multiplexers_Texas-Instruments-TCA9548APWR_C130026.html
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* 3x MPR121 modules, there're many types in the market, choose ones like this.
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* 3x MPR121 modules, there're many types in the market, choose ones like this.
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https://www.sparkfun.com/products/retired/9695
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https://www.sparkfun.com/products/retired/9695
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Before solder MP121 module to the main PCB board, remember to **cut (unshort) the ADDR pin** which is short by default. Please be careful not to cut more than necessary.
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Before solder MP121 module to the main PCB board, remember to use a knife to **cut (unshort) the ADDR pin** which is short by default. Please be careful not to cut more than necessary.
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<img src="doc/mpr121_cut.png" width="40%">
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<img src="doc/mpr121_cut.png" width="40%">
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There's not enough space for the whole height of MPR121 module plus the lead pads. So you need to solder the module like the picture shows below.
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There's not enough space for the whole height of MPR121 module plus the lead pads. So you need to solder the module like the picture shows below.
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First apply some insulation tape.
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First apply some insulation tape.
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@ -71,7 +71,7 @@ https://github.com/whowechina/
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* 3x MPR121 模块,市面上有很多种,选择这种类型的。
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* 3x MPR121 模块,市面上有很多种,选择这种类型的。
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https://www.sparkfun.com/products/retired/9695
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https://www.sparkfun.com/products/retired/9695
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在焊接 MPR121 模块到主 PCB 板之前,记得**切断默认的 ADDR 引脚**,注意绝对不要切过头。
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在焊接 MPR121 模块到主 PCB 板之前,记得用锋利的小刀**切断默认的 ADDR 引脚**,注意绝对不要切过头。
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<img src="doc/mpr121_cut.png" width="40%">
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<img src="doc/mpr121_cut.png" width="40%">
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MPR121 模块加上引脚的高度超过了 PCB 板的高度。所以你需要像下面的图片一样焊接模块。
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MPR121 模块加上引脚的高度超过了 PCB 板的高度。所以你需要像下面的图片一样焊接模块。
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首先贴上一些绝缘胶带。
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首先贴上一些绝缘胶带。
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