• Announcements

    • bluehash

      Forum Upgrade   03/11/2017

      Hello Everyone, Thanks for being patient while the forums were being fixed and upgraded. Please see details and report issues in this thread. Thanks!


  • Content count

  • Joined

  • Last visited

  1. So I found that I was missing something very basic, #include "Energia.h". This did fix a lot of problem but now, these are the error codes that I am getting when I compile the code I am working on in Energia. Errors: Energia: 1.6.10E18 (Mac OS X), Board: "MSP-EXP430F5529LP" /Users/Jon/Documents/Energia/libraries/HX711/HX711.cpp: In member function 'long int HX711::read()': /Users/Jon/Documents/Energia/libraries/HX711/HX711.cpp:53:9: error: 'yield' was not declared in this scope /Users/Jon/Documents/Energia/libraries/HX711/HX711.cpp: In member function 'long int HX711::read_average(byte)': /Users/Jon/Documents/Energia/libraries/HX711/HX711.cpp:91:9: error: 'yield' was not declared in this scope exit status 1 Error compiling for board MSP-EXP430F5529LP. Edited .h file from the Github repository /* Header file - Library for HX711 */ #ifndef HX711_h #define HX711_h #include "Energia.h" class HX711 { private: byte PD_SCK; // Power Down and Serial Clock Input Pin byte DOUT; // Serial Data Output Pin byte GAIN; // amplification factor long OFFSET; // used for tare weight float SCALE; // used to return weight in grams, kg, ounces, whatever public: // define clock and data pin, channel, and gain factor // channel selection is made by passing the appropriate gain: 128 or 64 for channel A, 32 for channel B // gain: 128 or 64 for channel A; channel B works with 32 gain factor only HX711(byte dout, byte pd_sck, byte gain = 128); HX711(); virtual ~HX711(); // Allows to set the pins and gain later than in the constructor void begin(byte dout, byte pd_sck, byte gain = 128); // check if HX711 is ready // from the datasheet: When output data is not ready for retrieval, digital output pin DOUT is high. Serial clock // input PD_SCK should be low. When DOUT goes to low, it indicates data is ready for retrieval. bool is_ready(); // set the gain factor; takes effect only after a call to read() // channel A can be set for a 128 or 64 gain; channel B has a fixed 32 gain // depending on the parameter, the channel is also set to either A or B void set_gain(byte gain = 128); // waits for the chip to be ready and returns a reading long read(); // returns an average reading; times = how many times to read long read_average(byte times = 10); // returns (read_average() - OFFSET), that is the current value without the tare weight; times = how many readings to do double get_value(byte times = 1); // returns get_value() divided by SCALE, that is the raw value divided by a value obtained via calibration // times = how many readings to do float get_units(byte times = 1); // set the OFFSET value for tare weight; times = how many times to read the tare value void tare(byte times = 10); // set the SCALE value; this value is used to convert the raw data to "human readable" data (measure units) void set_scale(float scale = 1.f); // get the current SCALE float get_scale(); // set OFFSET, the value that's subtracted from the actual reading (tare weight) void set_offset(long offset = 0); // get the current OFFSET long get_offset(); // puts the chip into power down mode void power_down(); // wakes up the chip after power down mode void power_up(); }; #endif /* HX711_h */ Edited .cpp file from Github repository /* Source file - Library for HX711 */ #include "Energia.h" #include <HX711.h> HX711::HX711(byte dout, byte pd_sck, byte gain) { begin(dout, pd_sck, gain); } HX711::HX711() { } HX711::~HX711() { } void HX711::begin(byte dout, byte pd_sck, byte gain) { PD_SCK = pd_sck; DOUT = dout; pinMode(PD_SCK, OUTPUT); pinMode(DOUT, INPUT); set_gain(gain); } bool HX711::is_ready() { return digitalRead(DOUT) == LOW; } void HX711::set_gain(byte gain) { switch (gain) { case 128: // channel A, gain factor 128 GAIN = 1; break; case 64: // channel A, gain factor 64 GAIN = 3; break; case 32: // channel B, gain factor 32 GAIN = 2; break; } digitalWrite(PD_SCK, LOW); read(); } long HX711::read() { // wait for the chip to become ready while (!is_ready()) { // Will do nothing on Arduino but prevent resets of ESP8266 (Watchdog Issue) yield(); } unsigned long value = 0; uint8_t data[3] = { 0 }; uint8_t filler = 0x00; // pulse the clock pin 24 times to read the data data[2] = shiftIn(DOUT, PD_SCK, MSBFIRST); data[1] = shiftIn(DOUT, PD_SCK, MSBFIRST); data[0] = shiftIn(DOUT, PD_SCK, MSBFIRST); // set the channel and the gain factor for the next reading using the clock pin for (unsigned int i = 0; i < GAIN; i++) { digitalWrite(PD_SCK, HIGH); digitalWrite(PD_SCK, LOW); } // Replicate the most significant bit to pad out a 32-bit signed integer if (data[2] & 0x80) { filler = 0xFF; } else { filler = 0x00; } // Construct a 32-bit signed integer value = ( static_cast<unsigned long>(filler) << 24 | static_cast<unsigned long>(data[2]) << 16 | static_cast<unsigned long>(data[1]) << 8 | static_cast<unsigned long>(data[0]) ); return static_cast<long>(value); } long HX711::read_average(byte times) { long sum = 0; for (byte i = 0; i < times; i++) { sum += read(); yield(); } return sum / times; } double HX711::get_value(byte times) { OFFSET = 0; return read_average(times) - OFFSET; } float HX711::get_units(byte times) { SCALE = 0; return get_value(times) / SCALE; } void HX711::tare(byte times) { double sum = read_average(times); set_offset(sum); } void HX711::set_scale(float scale) { SCALE = scale; } float HX711::get_scale() { return SCALE; } void HX711::set_offset(long offset) { OFFSET = offset; } long HX711::get_offset() { return OFFSET; } void HX711::power_down() { digitalWrite(PD_SCK, LOW); digitalWrite(PD_SCK, HIGH); } void HX711::power_up() { digitalWrite(PD_SCK, LOW); }
  2. Has anyone been able to find a library or had any success in making their own library for the HX711 for use with Energia. I know there is a link on Github with the header and source files for Arduino but they do not work for me. The link I'm referring to is https://github.com/bogde/HX711 Thanks for any help!