@mschaeffler/node-red-pwm

Nodes for PWM handling in Node-Red.

If the msg property invalid is present in the message, all nodes ignore the message.

Install

$ npm install @mschaeffler/node-red-pwm

PWM input

Measures the duty cycle of a rectangular wave.

Input

The message property to be used as payload can be defined with the Property property.

|msg. | type | description | |:-------|:-------|:--------------| |payload | boolean| the rectangular wave signal.|

Output

|msg. | type | description | |:-------|:-------|:--------------| |payload | number | duty cycle.| |cycles | number | number of the high periods in the measurement buffer.| |quality | number | fill rate of the measurement buffer.|

Parameters

|config| type | description | |:-----|:-------|:----------------------------------| |Property| string | defines the message property to be used as payload.| |measure time|number|size of the measurement buffer in seconds.| |Status|boolean|shows the actual value as a node status.|

PWM output

Generates a PWM signal.

Input

The message property to be used as payload can be defined with the Property property.

|msg. | type | description | |:-------|:-------|:--------------| |payload | number | the duty cycle of the PWM between 0 and 1. 0 is off and 1 is continuously on.|

Output

|msg. | type | description | |:-------|:-------|:--------------| |payload | boolean| PWM signal of alternating true and false.|

Parameters

|config| type | description | |:-----|:-------|:----------------------------------| |Property| string | defines the message property to be used as payload.| |Period|number|periodic time of the PWM in seconds.| |Status|boolean|shows the actual value as a node status.|

Example Flow

example flow

Author

Mathias Schäffler

License

LGPL-2.1