> For the complete documentation index, see [llms.txt](https://support.eimtechnology.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.eimtechnology.com/documentation/zoolark.md).

# Zoolark

A pocket-size oscilloscope plus function generator

{% hint style="info" %}
Join our <img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FVFw4ge85Cd1Rf7PaLt5u%2F636e0a6a49cf127bf92de1e2_icon_clyde_blurple_RGB.png?alt=media&amp;token=5f2bf79c-1206-4e4c-a4e3-450e51f54b3c" alt="" data-size="line"> [Discord](https://discord.gg/urh8hW2YFa) channel for more information. &#x20;
{% endhint %}

**Shop link:** <https://shop.eimtechnology.com/collections/all-products/products/zoolark-oscilloscope-with-function-generator>

## Features

Zoolark is a pocket-size electronics circuit testing and debugging tool which integrated features of a function generator, two channel oscilloscope, a fast digital I/O for PWM tuning and a high accuracy DC reference output. A 240\*240 full color 1.54-inch LCD allows measurement results and testing information clearly displayed. The device is powered by a 280mAh rechargeable lithium polymer battery supporting over 2 hours standby time.

{% embed url="<https://www.youtube.com/watch?v=cUfvbtPHl5U>" %}

## Functions

The main functions of Zoolark are illustrated below:

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FSPGcR30kPBkHY9Q1Q8dj%2Fimage.png?alt=media&amp;token=aafa543b-3467-419c-862a-20a0ad448d84" alt=""><figcaption></figcaption></figure>

{% tabs %}
{% tab title="❶ Type-C USB Port" %}
**Operation:**&#x20;

* Connect to 5V adaptor or computer USB port

**Functions:**

* Charge the battery
* Update the Firmware (See Firmware Updates)
* Communicate with Computer (See Computer communication)
  {% endtab %}

{% tab title="❷ Power Button" %}
**Operation**

* Press (long or short)

**Functions**

* Short press to turn ON the device
* Long press and release to turn OFF the device
  {% endtab %}

{% tab title="❸ Mode Selection Button" %}
**Operation**

* Press

**Functions**

* Function Generator
* Oscilloscope in time domain
* Oscilloscope in frequency domain
* DC Reference Voltage
* PWM Signal
  {% endtab %}

{% tab title="❹ Menu Selection Button" %}
**Operation**

* Press

**Functions**

* Switching the cursor to different submenus
  {% endtab %}

{% tab title="❺ 3-way Toggle" %}
**Operation**

* Left/Right/Press

**Functions**

* Left: decrement or move leftwards
* Right: increment or move rightwards
* Press: confirm then go to next
  {% endtab %}

{% tab title="❻ Debug Port" %}
Operation

* Connect to jumper wires

Functions:&#x20;

* +5V, -5V and +3.3V: Fixed DC output
* PWM (OUT): Duty cycle from 5% to 95% (press the 3-way toggle)
* WAV (OUT): Tri/Squ/Sin waves
* DC (OUT): High accuracy DC signal
* CH1 (IN): Oscilloscope channel 1, 1MΩ impedance
* CH2 (IN): Oscilloscope channel 2, 1MΩ impedance
  {% endtab %}
  {% endtabs %}

## Specifications

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FLirM89LNFPcbelfBAdgL%2Fimage.png?alt=media&amp;token=f677049b-b88c-42a4-844f-96cfad776d66" alt=""><figcaption></figcaption></figure>

| Parameter | TG491 |
| :-------: | :---: |
|     H     |  49mm |
|     W     |  62mm |
|     S     |  40mm |
|     D     |  50mm |
|     P     |  16mm |
| Thickness |  13mm |
|   Weight  |  29g  |
|   Color   | White |

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2F5qGedhMYZqWP6hW6QNdE%2Fimage.png?alt=media&amp;token=17404f45-4dfa-4b5d-a28a-b27ae3437a0e" alt=""><figcaption></figcaption></figure>

## Connecting Zoolark to a Computer

Zoolark is capable to communicate to a computer which allows waveform to be displayed on a larger screen and have data exported. If you need to update firmware, please read next section. &#x20;

{% hint style="info" %}
To download the software Zookee first and follow the procedures. You can also check out this video for better demonstration.
{% endhint %}

1. Download the software Zookee from our Github repository, click the link below

{% embed url="<https://github.com/eimtechnology/Zoolark>" fullWidth="false" %}

2. Unzip the folder, then click the “Zookee” file located in the folder. This is an executable file.

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FxbuvlZWZ8DSoaLowAs8t%2Fimage.png?alt=media&amp;token=883991a7-389b-4ca8-8990-bd594651aa67" alt=""><figcaption></figcaption></figure>

3. The interface of Zookee is introduced in the following picture.

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2Fg6IKmz5ecnUkmtbLj8Ux%2Fimage.png?alt=media&amp;token=f8600204-d95b-4ee7-ab39-4790b0216ecd" alt=""><figcaption></figcaption></figure>

4. Connect Zoolark to your computer’s USB port and turn on the device. Click Refresh icon to get the port and then Link the device. Click Run to display the data onto your computer screen.

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FV0jwmnYLF9FtA9Syyup3%2Fimage.png?alt=media&amp;token=29da2d80-b306-4541-9931-6693fb039ade" alt=""><figcaption></figcaption></figure>

5. Once connection has established, the software will display Zoolark’s waveform. You can open the cursor function for more detailed measurement. The Export icon allows data to be exported in .csv format.

<figure><img src="https://2395483440-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFcgTb7Dst30iGr6yQqof%2Fuploads%2FYAcF9M51fcESub0KoDoF%2Fimage.png?alt=media&amp;token=83ce6bd4-7768-461f-b67d-cce29859429d" alt=""><figcaption></figcaption></figure>

## Instructions for Firmware Updates

Firmware is a piece of machine code to be flashed into the hardware and enables certain functionalities of the device.&#x20;

{% hint style="warning" %}
The initial firmware was released on July 2021 during the Kickstarter product launch. This firmware did not support computer communication. All firmware version released after Oct 31, 2022 improved screen refresh rate and have supported computer communication.
{% endhint %}

The initial firmware was released on July 2021 during the Kickstarter product launch. This firmware did not support computer communication. All firmware version released after Oct 31, 2022 improved screen refresh rate and have supported computer communication. We encourage you update to the latest firmware.

<mark style="color:red;background-color:blue;">**At the back of your Zoolark device, if the serial number contains: TG473xxx, then it has the latest firmware and you DO NOT need update anything. If it is TG491xxx, then you may use the release versions.**</mark>&#x20;