Trend channel

IndicatorsFrom Pro

• Value

Trend channel

rising · 81,604 → 82,805 · width 1,690

• Upper
• Middle
• Lower

This is how the node looks on the board: inputs on the left, outputs on the right.

Like two guardrails along a road: you lay one against two points and the other parallel to it. While the price drives between them it stays quiet; when it breaks out, the chain can report.

Two parallel lines on the chart. Two parallel lines you draw on the chart: the first through two points, such as two lows, the second at a distance above or below, such as through the high in between. From the first point both continue to the right, and on request to the left as well. With a Range the chain alerts you when the price leaves the channel. Example: “Price exits the range between lower and upper channel line” reports the breakout up as well as down.

What it looks like

• Price (close of each candle)
• Trend channel
• middle
• points of the lower line
• Price exits the channel

BTC/USDT on 1-hour candles with a trend channel: the lower line through two lows, the upper one parallel through the highest high in between. For two days the price runs inside; at the dot it closes below the channel, and “Price exits” reports the breakout there.

Setting it in the chart

In the properties, a chart shows the last 150 candles with the channel: the first line with its points, the second parallel to it, an area in between and the middle dashed. The top line shows whether the price at the last candle is inside the channel or how far above or below it. You draw and drag it on the chart: “Enlarge” opens it, and a trend channel without points is drawn there with “Draw the channel on the chart”. You can also type time and value of the points and the offset in the fields.

More under Draw a trend channel.

Settings

The settings appear on the right under “Properties” once you click the node on the board. Below each field you find the same explanation as here.

Point 1: time

Default: empty · point in time, shown in your time zone in the editor, stored in UTC, must be filled in before activating

Where the first line starts: the candle of the first point, in your time zone. On the chart you set the point with a click and drag it with the mouse or your finger.

Point 1: value

Default: 0

The value at the first point, usually a price like 84,120, such as a low.

Point 2: time

Default: empty · point in time, shown in your time zone in the editor, stored in UTC, must be filled in before activating

The candle of the second point. The first line runs through both points.

Point 2: value

Default: 0

The value at the second point, such as the next low. Higher than the first means the channel rises.

Offset of the second line

Default: 0

How far the second line lies from the first, in the unit of the value: plus above, minus below, such as 1500 for $1,500 above the first line. On the chart you set it with the third click and drag the line by the handle on the right.

Extend

Default: to the right

Where the line runs beyond its points. To the right it applies from the first point, as drawn. Both ways it also runs to the left into the past: you then see where the price touched it before, and the replay and chart also count crossings before the first point.

• to the right (default): From the first point, as drawn.
• both ways: Also before the first point, back to the start of the chart.

Example

A breakout from the channel: the lower line runs through two lows, the upper one parallel through the high in between. Telegram notifies you as soon as the price leaves the channel up or down. You draw it on the chart with three clicks.

How to connect the nodes:

1. Candle (Price) → Trend channel (Value)
2. Candle (Price) → Range (Value)
3. Trend channel (Lower) → Range (Low)
4. Trend channel (Upper) → Range (High)
5. Range (true/false) → Telegram (Trigger)

On the board it reads: rising · 81,604 → 82,805 · width 1,690

Chain as JSON

To try it, copy it and paste it in the editor under “Import”. Importing creates a new chain.

trendchannel.json

{
  "name": "Example: Trend channel",
  "version": 1,
  "nodes": [
    { "id": "c1", "type": "core.candle", "position": { "x": 40, "y": 40 }, "settings": { "pair": "BTC/USDT", "timeframe": "1h" } },
    { "id": "l1", "type": "core.trendchannel", "position": { "x": 260, "y": 40 }, "settings": { "time1": "2026-10-09T01:00:00Z", "value1": 81603.52, "time2": "2026-10-11T04:00:00Z", "value2": 82804.65, "offset": 1690 } },
    { "id": "g1", "type": "core.range", "position": { "x": 480, "y": 40 }, "settings": { "mode": "exits" } },
    { "id": "t1", "type": "core.telegram", "position": { "x": 700, "y": 40 }, "settings": {} }
  ],
  "edges": [
    { "from": "c1.close", "to": "l1.in" },
    { "from": "c1.close", "to": "g1.in" },
    { "from": "l1.lower", "to": "g1.lower" },
    { "from": "l1.upper", "to": "g1.upper" },
    { "from": "g1.out", "to": "t1.in" }
  ]
}

Inputs and outputs

Only matching types connect: number series to number series (round pin), signal to signal (square), message to message (diamond).

Direction	Pin	Type	Note
Input	Value	Number series	required
Output	Upper	Number series	in the unit of the input
Output	Middle	Number series	in the unit of the input
Output	Lower	Number series	in the unit of the input

Good to know

• In messages the values are called “upper channel line”, “channel middle”, “lower channel line”.
• Search also finds it under: trend channel, channel, parallel, draw, breakout, sideways, line.

Technical details

First line as with the trend line: value 1 + (value 2 − value 1) · (open time − time 1) / (time 2 − time 1), linear in time; the second lies the offset above (plus) or below (minus). Upper is the higher of the two, Lower the lower one, the middle lies exactly in between. Empty before the first point unless extended both ways, and empty without a value at the input.

• Type in the chain: core.trendchannel · Version 1.0.0 · Category key ind
• Settings in the chain: time1 (Point 1: time), value1 (Point 1: value), time2 (Point 2: time), value2 (Point 2: value), offset (Offset of the second line), extend (Extend)
• Pins in the chain: Input in · Output upper, middle, lower
• Reference tests in the manifest: 4 (with fixed price data: 500 candles of 1h)
• How a node is built