Circuit paths

There are a few keywords that can be used to split off or connect multiple circuit paths. This is useful for building complex circuits.

A brief summary of the keywords:

Keyword	Description
branch	Split off paths in separate blocks at the location before the branch
join	Connect separate paths into the current location after the join block(s)
parallel	Connect separate paths with the same starting and ending points
point	Connect separate paths at the current location. Use at point and to point to reference the location of the point

branch

The branch command allows the circuit to split off from a given insertion point. After all branch blocks are executed, the pre-branch insertion point is restored.

What happens within a branch block is indicated by an indent.

Example:

import lib

v5v = supply("5V")
gnd = dgnd()

at v5v
wire down 100            # Point A
branch:
    wire down 100        # Wire is added within this branch.
    add res(20k)
    wire down 200
    to gnd

wire right 300 down 200   # Wire is added after point A
add cap(100n)
wire down 100
to gnd

In the above example, the branch splits off to create the path with the res(20k). When this path in this branch block has completed execution, the insertion point is reset back to the the pre-branching state. In this case, it is after the wire down 20 from v5v.

Consecutive branch blocks will share the same branching point.

warning

It is possible to have branches within branches, but bear in mind that readability might be affected.

join

This keyword connects multiple different paths to a single insertion point.

Example:

import lib

v5v = supply("5V")
gnd = dgnd()

def led_with_res(color):
    add led(color) pin 2
    wire right 100
    add res(360)
    wire right 100

join:
    # path 1
    at gnd
    wire right 100
    led_with_res("red")

join:
    # path 2
    at gnd
    wire right 100
    led_with_res("green")
    wire up 500

# join point
wire up 100
to v5v

In the above example, the two circuit points are connected together at the join point.

Consecutive join blocks will share the same join point. The position of the join position is determined by the path in the very first block.

point

This keyword creates a reference at the current location where the point block is first declared. When at point or to point are executed within the point block, the location of the point will be used.

Example:

import lib

v5v = supply("5V")
gnd = dgnd()

at v5v
wire down 100
add res(360)
wire down 100

point:
    at v5v
    wire down 100
    add res(360)
    wire down 100

    branch:
        wire left 500
        to point

    wire down 100
    add res(360)
    wire down 200
    to gnd

    at point
    wire right 1000 down 100
    add res(360)
    wire down 200
    to gnd

wire down 100
add led("red")
wire down 100
to gnd

If at point or to point are called within an inner block, then the location of the nearest point: block will be used.