---
id: begin_item.creating-your-first-simple-detector-step-by-step
page_type: begin_article
title: "Creating Your First Simple Detector (Step-by-Step Example)"
description: "A step-by-step example of a simple Moonbot detector that tracks a sharp price drop and signals the user without opening a trade automatically."
section: begin
category: "Detect Settings"
url: https://moonbot.eu/en/begin/detect-settings/creating-your-first-simple-detector-step-by-step?format=md
locale: en
alternate_ru: https://moonbot.eu/begin/detect-settings/creating-your-first-simple-detector-step-by-step?format=md
parent: https://moonbot.eu/en/begin/detect-settings?format=md
previous: https://moonbot.eu/en/begin/detect-settings/working-with-the-detectors-interface?format=md
next: https://moonbot.eu/en/begin/detect-settings/detectors-and-emulation-safe-testing-of-ideas?format=md
status: published
updated_at: 2026-09-21T17:20:30+03:00
---

# Creating Your First Simple Detector (Step-by-Step Example)

In this example, we’ll create a basic signal-only detector that watches for sudden price drops and alerts the user. It will not open trades automatically—its sole purpose is to notify you about market events. This is a safe and optimal way to start learning how detectors work.

1. Click the “💡 **Strategies”** button in the upper-right part of the terminal screen. The **Strategies** window will open. On the left, you’ll see the list of your strategies (it may be empty at first). On the right, you’ll find the configuration area for the selected strategy.
2. Click **Add new** on the right side.
3. If the **Main** section is collapsed, expand it.
4. In the **StrategyName** field, enter a name like DropTest1. This name will be used for:
   1. finding deals and signals in reports
   2. managing the strategy via Telegram commands (e.g., to blacklist coins)
5. Pay attention to the **SignalType** field — this is one of the key settings of the strategy. This field defines the type of algorithm to be used. Select the value **DropsDetection**. You can learn more about the available algorithms and their parameters in the Moonbot documentation. More about available algorithms and their parameters in the Moonbot documentation.
6. Set **SilentNoCharts** to YES. This prevents the terminal from auto-opening the coin chart on signal. For now, a simple alert is sufficient.
7. Set **SoundAlert** to YES to enable sound notifications when the detector triggers. You may optionally disable the sound by setting **SoundKind** to NONE. Use **KeepAlert** to control how long the signal stays visible on the screen.
8. Collapse **Main** and expand the **Filters** tab. This section lets you filter which coins are monitored by the detector—by watchlist, volatility, volume, and more.
9. Set **IgnoreFilters** to YES so the detector applies to all coins that match the algorithm conditions.
10. Collapse the **Filters** tab—it’s not needed further in this example.
11. **Important**! Expand the **Buy conditions** tab and make sure **AutoBuy** is set to NO. This ensures the detector won’t place orders automatically.
12. Collapse **Buy conditions** and go to the **Strategy setting** tab.
13. For the DropsDetection algorithm, set the following:
    1. **DropsMaxTime = 10** — look back up to 10 seconds
    2. **DropsPriceMA = 0** — use raw (non-averaged) price
    3. **DropsLastPriceMA = 0** — compare to current raw price
    4. **DropsPriceDelta = 1** — price must have dropped by at least 1%
    5. **DropsPriceIsLow = NO** — don’t require a local low
    6. **DropsUseLastPrice = NO** — not used in this example
    7. In short: the **detector will trigger if a coin has dropped 1% or more in the past 10 seconds.**
14. Click **Save** to store the strategy. It will appear in the list on the left side of the **Strategies** window.
15. Check the box next to your detector and click **Start selected**. Once running, detector signals will show in the line above the chart. Click a signal to open the relevant coin chart.

You can experiment with **DropsPriceDelta** and **DropsMaxTime** to explore how the detector behaves under different thresholds. This is a safe and effective way to understand how Moonbot’s detection algorithms work.

**Congratulations!** You’ve created your first Moonbot detector. Going forward, detector setup will become easier. You can also copy the strategy to the clipboard and paste it using the **Paste** button in the **Strategies** window.

### Example of Delta-Based Detector (Advanced Example)

Now that you've tried a simple price-based detector, it's time for a more complex one using the **Delta** algorithm. These detectors identify moments when volume spikes and market activity increases—often signaling an upcoming directional move.

Unlike simple detectors, Delta detectors analyze price, volume, trade count, and activity across multiple timeframes. Here's a full example.

1. Repeat the steps to open the **Strategies** window: Click 💡 **Strategies**, then **Add new**.
2. In **StrategyName**, enter something like DeltaTest1.
3. In **SignalType**, select the **Delta** algorithm type.
4. Set these parameters just like before:
   1. **SilentNoCharts = YES**
   2. **SoundAlert = YES**
5. Use **SoundKind** and **KeepAlert** to configure alert sound and display duration.
6. Go to the **Filters** tab, open **Filter / Base**, and set **IgnoreBase = YES**. Then save the strategy. This disables only this filter section—not all filters. Disabling only unused sections is good practice and reduces CPU load.
7. Disable these filter subsections the same way:
   1. **Filters / Time** → IgnoreTime = YES
   2. **Filters / Price / Position** → IgnorePrice = YES
   3. **Filters / Ping** → IgnorePing = YES
   4. **Filters / Volume** → IgnoreVolume = YES
8. Keep only the **Filters / Delta** section active. Here, define the volatility filter for the past 3 hours:
   1. **Delta_3h_Min = 0**
   2. **Delta_3h_Max = 10**
      1. This includes only coins that moved no more than 10% over the past 3 hours. **Important**! Expand **Buy conditions** and make sure **AutoBuy = NO**. In this example, the detector is used solely for analysis and notification purposes.
9. Go to **Strategy setting** and set the following Delta algorithm parameters:
   1. **DeltaInterval = 120** — analyze the last 120 seconds
   2. **DeltaShortInterval = 5** — short-term averaging over 5 seconds
   3. **DeltaPrice = 3** — price must move at least 3%
   4. **DeltaVol = 1000** — volume must exceed 1000 USDT
   5. **DeltaVolRaise = 30** — volume increase must be ≥ 30%
   6. **DeltaVolSec = 0** — ignored
   7. **DeltaBuyers = 5** — at least 5 trades in the last 5 seconds
   8. **DeltaLastPrice = 0.3** — short-term average price must rise 0.3% over long-term average
10. Save the strategy, check its box in the strategy list, and click **Start selected**.

### What This Detector Does

The Delta detector analyzes the past 120 seconds for coins that pass the filter, and triggers if all the following are true:

- Price changes by at least 3%
- Volume exceeds 1000 USDT
- Volume increases 30%+ compared to the previous interval
- At least 5 trades occurred in the past 5 seconds
- 5-second average price is at least 0.3% higher than the 120-second average
- When all conditions are met, the terminal issues a signal for a potential trading opportunity.

This example demonstrates how Delta-based detectors help identify market activity spikes and can serve as powerful tools for analysis and preparation before using advanced strategies.

## Navigation

Path: [Main](https://moonbot.eu/en?format=md) / [Getting started](https://moonbot.eu/en/begin?format=md) / [Detect Settings](https://moonbot.eu/en/begin/detect-settings?format=md) / Creating Your First Simple Detector (Step-by-Step Example)

Parent section: [Detect Settings](https://moonbot.eu/en/begin/detect-settings?format=md)

Previous: [Working with the Detectors Interface](https://moonbot.eu/en/begin/detect-settings/working-with-the-detectors-interface?format=md)

Next: [Detectors and Emulation: Safe Testing of Ideas](https://moonbot.eu/en/begin/detect-settings/detectors-and-emulation-safe-testing-of-ideas?format=md)

## Related

- [Detectors and Emulation: Safe Testing of Ideas](https://moonbot.eu/en/begin/detect-settings/detectors-and-emulation-safe-testing-of-ideas?format=md)
- [Practical Tips for Beginners for Working with Detectors](https://moonbot.eu/en/begin/detect-settings/tips-for-working-with-detectors?format=md)
- ["Detector Setup" Section Summary](https://moonbot.eu/en/begin/detect-settings/detector-setup-section-summary?format=md)