Cons-n-Stuff/mai_pico
1
0
Fork 0
mirror of https://github.com/whowechina/mai_pico.git synced 2024-09-23 18:48:23 +02:00
Code Issues Packages Projects Releases Wiki Activity

Optimize README

Browse Source
This commit is contained in:
whowechina 2024-03-03 11:19:49 +08:00
parent 9ddf9ad36c
commit d2c8063e43
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README.md
View File

@ -52,7 +52,7 @@ It's CC-NC. So DIY for yourself and for your friend, don't make money from it.
* 2x 0603 5.1kohm resistors (R20, R21) for USB. If you plan to use the native USB socket on the Pi Pico directly, then the Type-C socket and resistors can be omitted, making the soldering much simpler.
* 3x MPR121 modules, there're many types in the market, choose ones like this.
https://www.sparkfun.com/products/retired/9695
Before solder MP121 module to the main PCB board, remember to **cut (unshort) the ADDR pin** which is short by default.
Before solder MP121 module to the main PCB board, remember to use a knife to **cut (unshort) the tiny trace that connects ADDR to the GND**. Please be careful not to cut more than necessary.
<img src="doc/mpr121_cut.png" width="40%">
* Leave U5, U6, U7 area discrete components empty as we're using MPR121 module, not the chip.
* 1x SN74LV1T34DBVR (SOT-23-5) level shifter (U8), if you can't find one, use a 0603 10ohm resistor (R4) as an alternative.

2
README_CN.md
View File

@ -61,7 +61,7 @@ https://github.com/whowechina/
* 3x MPR121 模块，市场上有许多类型，选择像这样的。
https://www.sparkfun.com/products/retired/9695
在将 MP121 模块焊接到主 PCB 板之前，记住**切断（断开）默认短接的 ADDR 引脚**，也要注意不要切过红线之外的区域。
在将 MP121 模块焊接到主 PCB 板之前，记得用小刀**切断 ADDR 和 GND 之间的微小连线**，注意绝对不要切过头。
<img src="doc/mpr121_cut.png" width="40%">
* 因为我们使用的是 MPR121 模块，而不是芯片，所以 U5、U6、U7 区域的离散组件留空。
* 1x SN74LV1T34DBVR（SOT-23-5）电平转换器（U8），如果你找不到，可以用 0603 10ohm 电阻（R4）替代。