index :: hw

hw.rpi.adc.ads1115

driver for 16-bit ADC on ads1115 chip for Raspberry Pi

available since version: 0.9.8

---

information

Full-scale range settings: - @fsr 6144mv, range +-6.144V, 1-bit: 0.1875mV - @fsr 4096mv, range +-4.096V, 1-bit: 0.125mV - @fsr 2048mv, range +-2.048V, 1-bit: 0.0625mV - @fsr 1024mv, range +-1.024V, 1-bit: 0.03125mV - @fsr 512mv, range +-0.512V, 1-bit: 0.015625mV - @fsr 256mv, range +-0.256V, 1-bit: 0.0078125mV

arguments:

• MODE See @mode
  type: symbol
  

methods:

• measure single measure request
  parameters:
  • [CHAN] the channel to measure. If omitted: perform measure on all channels
    type: int
    
• poll set polling turn on/off
  parameters:
  • STATE poll state
    type: bool
    required: True
    

properties:

• @fsr (initonly) Get/set full-scale input range
  type: symbol
  enum: 1024mv, 2048mv, 256mv, 4096mv, 512mv, 6144mv
  default: 6144mv
  

• @i2c_addr (initonly) Get/set I²C address. Also 'default' value is accepted (for addr ???) and 'alt' (for addr ???)
  type: int
  range: -4..119
  default: -1
  

• @i2c_bus (initonly) Get/set I²C bus
  type: atom
  enum: 1, 2, 3, 4, 5, 6, default, none
  default: none
  

• @in_max Get/set input maximum value in millivolts
  type: float
  range: 0.0..6144.0
  default: 5000.0
  

• @in_min Get/set input minimal value in millivolts
  type: float
  range: 0.0..6144.0
  default: 0.0
  

• @mode (initonly) Get/set measure mode. If 'single' - measure level between A0, A1, A2, A3 and GND. If 'diff' - diff measure between A0 and A1, A0 and A3, A1 and A3, A2 and A3.
  type: symbol
  enum: diff, single
  default: single
  

• @norm Get/set normalization. If 1: normalize output into specified by @out_min @out_max range.
  type: bool
  default: 0
  

• @out_max Get/set output max value
  type: float
  default: 1.0
  

• @out_min Get/set output minimum value
  type: float
  default: 0.0
  

• @poll_time (initonly) Get/set polling measure time
  type: float
  units: ms
  range: 5.0..250.0
  default: 20.0
  

inlets:

• 
  type: control

outlets:

• [ch CHANNEL VALUE( messages
  type: control

keywords:

display rpi ads1115 adc

Authors: Serge Poltavsky

License: GPL3 or later