Using Mac to connect Raspberry Pi 4

苏子季、

February 10, 2020

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Mac

# Using Mac to connect Raspberry Pi 4

---

## 1. Edit the config

* using the usb to write the TF card
* open `/boot/wpa_supplicant.conf`
* insert the data

```json
  country=CN
  update_config=1
  ctrl_interface=/var/run/wpa_supplicant

network={
     ssid="<wifi 名称>"
     psk="<wifi 密码>"
  }
  ```
* click [here](https://steveedson.co.uk/tools/wpa/)  to format the data.

## 2. TTL to connect

### Edit the config

```config
# edit TF card `/boot/config.txt`

# add the content

enable_uart=1
```

### Install the device drive in mac

1. [ch340g Drive](https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver)
2. [PL2303 Drive ](http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=229&pcid=41)

### Check for success

```shell
> ls /dev | grep tty.usb

# if appear tty.usbserial  , it was scucuessful
```

### Connection

```config
GND->Groud
RXD->GPIO 14(TXD)
TXD->GPIO 15(RXD)
```

![](http://image-blog-markdown.test.upcdn.net/blog/raspberry-pi.png)

> if you have power supply, please remove the 5v red line

### Install Screen to ssh

```shell
> brew install screen
> screen /dev/tty.usbserial 115200
```

### Uninstall the drive

```shell
> rm -rf /System/Library/Extensions/XXXX.kext
> rm -rf /System/Library/Extensions.kextcache
> rm -rf /System/Library/Extensions.mkext
> kextcache -k /System/Library/Extensions
```

Last modification：September 3, 2022