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    • Charles

      Librairie Universelle Pour la Téléinformation
      Librairie Téléinfo • core arduino esp8266 librairie json • • Charles

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      Charles

      @fred
      Normalement le code dans l'Arduino (donc ça doit marcher sur Nano) ne fait que transmettre les informations.

      Tu parles de quel code ? quel sketch tu mets dans ton Arduino?

    • Charles

      PT100 and PT1000 Breakout Board with MAX31865
      MAX31865 PT100 and PT1000 • pt100 max31865 arduino pt1000 rtd • • Charles

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      admin

      @cbparks
      The reading and display depends on reference resistors soldered on your boards, in my design it's 390 for PT100 and 3900 for PT100, it's declared here and the only place it should be

      Then declare if you want to use PT100 or PT1000 here

    • A

      Compile error
      TH02 • th02 library arduino • • arnewiig

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      Charles

      Arnewiig,

      I’ve updated the repo, would you mind trying with the fixed version and let me know please ?

      Thanks

      Charles

    • Z

      Creating a project need help
      ArduiPi • arduipi arduino • • Zygod

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      Charles

      Zydog,
      Thank you for you comment.
      Building removing all power consuming elements is one of the keys. For low power you cal remove all regulators and DC power converters if any. Powering with 2 AA/AAA provide 3V which can be fine, but take space 😉
      The DHT11 is not the best sensor since it's slow and consuming power during conversion but with 2 AA/AAA it should works quite long as soon as you disable the sensor during low power sleeping mode.
      For ULPNode I'm working also on Gateway, currently an Arduino like but still testing with Spark Core / now particle and even ESP8266, they have more flash/ram add allow the gateway to do some other things such as displaying on a LCD/OLED

    • Charles

      ULPNode Low Power Secret Revealead
      ULPNode • consumption atmega328p battery arduino low • • Charles

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      M

      Hello,
      I have finaly build (recreated) what Charles showed...

      I have one problem now. How to turn MCP for the first time battery is inserted.
      Can someone show me how he did it?

      My schema looks like this and is EN by low state from voltage supervisor.
      alt text

    • Charles

      ULPNode first prototypes status
      ULPNode • consumption atmega328p battery arduino low • • Charles

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      Charles

      @cdmsjtr
      Sorry for my late response, I'm still working on it, the card is not in production yet, I need to finalize small things.

      Charles

    • Charles

      Implementing Bootloader for Ultra Low Power Arduino Wireless Sensor Node : Part 2
      ULPNode • atmega328 atmega328p battery arduino atmel • • Charles

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      D

      HELLO CHARLES,
      CAN I REPLACE THE RFM MODULE WITH ZIGBEE ?

    • Charles

      Customized Bootloader for Ultra Low Power Arduino Wireless Sensor Node : Part 1
      ULPNode • atmega328 atmega328p battery arduino atmel • • Charles

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    • Charles

      Be prepared to new Ultra Low Power Arduino Wireless Sensor Node
      ULPNode • atmega328 atmega328p battery arduino atmel • • Charles

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      Peter Van de Pol

      Dear Charles, I wonder how this story ended. It sounds impressive and just like the kind of board I am looking for. Can you give an update?

    • Charles

      Improved RFM12B with accurate RSSI reading Library
      Blog articles comments • custom detect arssi arduino • • Charles

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    • Charles

      Smart Humidity and Temperature sensor TH02 Library
      TH02 • sensor temperature library arduino humidity • • Charles

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      Charles

      Guys,

      Humm, that's interesting, I already fixed a problem with negative values in library (see ). As far As I remember this fixed the problem (but may be it's another issue now)
      Are you using the latest version ?

    • Charles

      How to detect RFM12B or NRF24L01 device presence in your code
      Blog articles comments • module code arduino device detect • • Charles

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    • Charles

      ArduiPi Getting Started
      ArduiPi • ftdi arduino external get arduipi • • Charles

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      Charles

      @schoopy
      I looked at the schematics and it not possible "as is" but you can do it of course.

      If your power is 5V I suggest you bypass the ArduiPi Regulator and send 5V to Pi using a wire like as follow

      0_1451775757232_ArduiPi-Power-5V.png

    • Charles

      Universal Library to drive OLED and LCD
      Blog articles comments • driver 128x64 arduino 128x32 adafruit • • Charles

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    • Charles

      ArduiLED for driving addressable RGB LED Strip
      Blog articles comments • addressable arduiled led arduino • • Charles

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    • Charles

      Use RFM12B, RFM69, Micro SD or Flash EEP using ArduiPi NRF24L01 connector
      Blog articles comments • arduino at25512 breakout board arduipi • • Charles

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      F

      @Charles No problem ! And thank you for this board.

    • Charles

      ArduiPi test board for production
      ArduiPi • raspberry board arduipi arduino • • Charles

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    • Charles

      ArduiPi, the Shield that brings Arduino to Raspberry Pi
      ArduiPi • raspberry shield arduipi arduino • • Charles

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    • Charles

      ArduiPi Protocol Specification
      ArduiPi • api protocol arduipi arduino • • Charles

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      P

      my family was looking for Acord 25 earlier this week and located an excellent service that has a searchable database . If others want Acord 25 also , here's http://goo.gl/ZkI6Nf