Tessel-Calibrate is a lightweight package that allows you to get a buffer of values, plus the high and low, from a number of Tessel modules.
Any module with a method formatted module.method(callback(err, data){ ... }) can be called with calibrate.get(module, 'method'). The resulting values can be accessed via a promise:
calibrate.get(module, 'method').then()
or as an event:
calibrate.get(module, 'method');
calibrate.on(‘calibrated’, callback);
Modules supported include:
npm install tessel-calibrate --save
The function takes two required arguments, the module you are using and the method name, the latter as a string. Eg: calibrate.get(ambient, ‘getSoundbuffer’);
It also takes an optional options hash, shown below with default values
{ returnsSingle: false,
calls: 10,
thresholds: {high: 1, low: 0} }
Set returnsSingle: true if the method you are calling returns a single value instead of a buffer array, and calibrate will create and return an array for you.
If it is a single return method, you can also choose how many calls to use to create the buffer with calls: num. This will not work with returnSingle: false.
Finally I assume the values returned will be between 0 and 1. If not, set the hight and low thresholds by passing a hash with high and low values to thresholds.
Calibrate always returns a hash with three values:
{ buffer: [], // array of values
high: .012345,
low: .000012 }
MIT