MCP9808.h: No such file or directory

Shah_Raehash · April 30, 2018, 6:13pm

I am trying to attach a temperature sensor to my particle electron and am having errors with the libraries. On arduino, I was able to use Adafruit_MCP9808.h as a library but that didn’t work for particle electron. Then I tried to just use MCP9808.h as a library and reports it as no file or directory when it clearly states that the library has been attached.

Below is what I am seeing on my screen. Thank you

rickkas7 · April 30, 2018, 6:32pm

Make sure you’ve upgraded your Electron to system firmware 0.6.0 or later. The current version is 0.7.0.

Many libraries don’t work properly with older versions of system firmware, including the factory default 0.5.3. And the error message makes no sense.

Shah_Raehash · May 2, 2018, 12:19pm

I am using the online particle build software. Does that need to be updated? If so how can I do that?

ScruffR · May 2, 2018, 12:32pm

When Rick talks about system firmware version he doesn’t mean the version of the development tool but what version you have selected in Web IDE to build your firmware for.
See in the docs
https://docs.particle.io/guide/getting-started/build/photon/#flashing-your-first-app

batman430 · May 2, 2018, 7:39pm

you could just use this sample code

github.com

ControlEverythingCommunity/MCP9808/blob/master/Particle/MCP9808.ino

// Distributed with a free-will license.
// Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
// MCP9808
// This code is designed to work with the MCP9808_I2CS I2C Mini Module available from ControlEverything.com.
// https://www.controleverything.com/content/Temperature?sku=MCP9808_I2CS#tabs-0-product_tabset-2

#include <application.h>
#include <spark_wiring_i2c.h>

// MCP9808 I2C address is 0x18(24)
#define Addr 0x18

double cTemp = 0.0, fTemp = 0.0;
void setup()
{
    // Set variable
    Particle.variable("i2cdevice", "MCP9808");
    Particle.variable("cTemp", cTemp);
    
    // Initialise I2C communication as MASTER

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MCP9808.h: No such file or directory

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