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node-red-contrib-lfo

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Low frequency oscillators for Node-RED

github.com/natcl/node-red-contrib-lfo

natcl/node-red-contrib-lfo

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# node-red-contrib-lfo Low frequency oscillators for Node-RED. Will output numbers between -1 and 1 at the given frequency according to the selected waveform. Sending a number as `msg.payload` will change the frequency of the LFO. Sending the string `'stop'` as `msg.payload` will stop the output. Sending anything else will start the waveform. The waveform can also be changed dynamically by changing `msg.waveform` valid choices are: - sine - saw - saw_i - triangle - square - sig Beware of setting the sampling rate too low as it may hog your CPU.