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• Controlling ⨋ Firmata

  Gintaras Valatka • 07/15/2017 at 11:48 • 0 comments

  Switching relays between AC & DC, single ended & differential inputs. vRef controlled by RGB LED coupled to LDR (light dependant resistor) in dark layers of heat shrink tube controlled by PWM making it a Variable Resistor. Voltmeter is built with another Arduino ADC 0-5V. The RGB LED at the bottom right is mirroring hidden LED (vRef is not calibrated)

  All from the browser! Switching relays between AC & DC, single ended & differential inputs. vRef controlled by RGB LED coupled to LDR (light dependant resistor) in dark layers of heat shrink tube controlled by PWM making it a Variable Resistor. Voltmeter is built with another Arduino ADC 0-5V. The RGB LED at the bottom right is mirroring hidden LED (vRef is not calibrated)

  On Arduino can also control AREF pin, used by analogRead(), by externally setting vRef and in the sketch setting analog reference to EXTERNAL, if using Arduino ADCs https://www.arduino.cc/en/Reference/AnalogReference

  Home made Variable Resistor @ https://hackaday.io/project/21480-ldr-pot-making-matching-plotting
  

• Logging VICHY VC99

  Gintaras Valatka • 05/03/2017 at 20:31 • 0 comments

  This will plug into GinLab. There will be ability to log, analyse, export etc

  https://hackaday.io/project/21300-vichy-vc99-going-bluetoo-forget-optical-separation

  
  

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