> For the complete documentation index, see [llms.txt](https://sharinghub.kittenbot.hk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sharinghub.kittenbot.hk/airelated/koi/makecode/print.md).

# 螢幕顯示自定資訊

常規的英文字串可以顯示在KOI的螢幕上。但它有別於Microbit點陣屏顯示的字串，KOI螢幕資訊列印僅僅是作為輔助資訊。

### 编寫顯示資訊程式[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/mcbanner.png" alt=""><figcaption></figcaption></figure>

#### 加載KOI插件：[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

#### 在擴展頁直接搜尋KOI (KOI已經過微軟認證，可以直接搜尋)[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/koi_search.png" alt=""><figcaption></figcaption></figure>

#### 你亦可以用插件地址搜尋[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

KOI插件：<https://github.com/KittenBot/pxt-KOI>

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/01.png" alt=""><figcaption></figcaption></figure>

螢幕顯示積木塊：

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/02.png" alt=""><figcaption></figcaption></figure>

在X, Y 空格上填上0-239 (參考下圖), 設定顯示資訊的起始位置

<figure><img src="https://kittenbothk.readthedocs.io/en/latest/_images/04-1.png" alt=""><figcaption></figcaption></figure>

完整參考程式：

{% embed url="<https://makecode.microbit.org/_0jMehKiwH60v>" %}

### 程式運行流程[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

把程式下載到Microbit上，按下Microbit的按鍵A，KOI螢幕上會顯示Kittenbot; 按下Microbit的按鍵B，KOI螢幕上會顯示KOI , 維持2秒。

### 插件版本與更新[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

插件可能會不定時推出更新，改進功能。亦有時候我們可能需要轉用舊版插件才可使用某些功能。

詳情請參考:[ Makecode插件版本更換](/programmingplatforms/makecode/makecodeextupdate.md)

### FAQ[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

#### 1: 為什麼螢幕顯示資訊，顯示一下就消失了。[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

· 答：因為KOI並沒有在同一個系統，螢幕畫面跟根據攝像頭資料不斷刷新的，因此字串顯示一瞬間後，就會消失。KOI螢幕只是作為攝像頭的的一個觀察視窗。如果想資訊長時間顯示。可以另接一個I2C的OLED屏。

#### 2: 為什麼我打開電源，按KOI的按鍵A或者按鍵B，怎麼沒反應？[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

· 答：打開電源後, KOI 及microbit 同時起動; 相對上, Microbit 所需的起動時間比KOI魔塊短, 引致 Microbit的初始化程式（串口指令中, 控制載入Yolo模型）已經跑完了，KOI還沒完全起動, 最後會在螢幕中呈現報錯資訊。

· 解決辦法：打開電源後，重新按下Microbit背後的Reset按鍵，讓Microbit重新開始運行（秘訣就是讓KOI魔塊先完全運行起來，再讓Microbit 跑初始化程式）

#### 3: KOI鯉魚魔塊我直接3V電源可以嗎？[¶](broken://pages/OpAytIMH9mC7E51I2mpE)

· 答：不行，必須要接5V！


---

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