commit
5777880859
GPG Key ID:
5249548AA705F019
@ -0,0 +1,3 @@
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.pio
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.ccls
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.ccls-cache/
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This directory is intended for project header files.
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A header file is a file containing C declarations and macro definitions
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to be shared between several project source files. You request the use of a
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header file in your project source file (C, C++, etc) located in `src` folder
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by including it, with the C preprocessing directive `#include'.
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```src/main.c
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#include "header.h"
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int main (void)
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{
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||||
...
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||||
}
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```
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Including a header file produces the same results as copying the header file
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||||
into each source file that needs it. Such copying would be time-consuming
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and error-prone. With a header file, the related declarations appear
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||||
in only one place. If they need to be changed, they can be changed in one
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place, and programs that include the header file will automatically use the
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new version when next recompiled. The header file eliminates the labor of
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finding and changing all the copies as well as the risk that a failure to
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find one copy will result in inconsistencies within a program.
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In C, the usual convention is to give header files names that end with `.h'.
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It is most portable to use only letters, digits, dashes, and underscores in
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header file names, and at most one dot.
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Read more about using header files in official GCC documentation:
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* Include Syntax
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* Include Operation
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* Once-Only Headers
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* Computed Includes
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https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
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@ -0,0 +1,46 @@
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This directory is intended for project specific (private) libraries.
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PlatformIO will compile them to static libraries and link into executable file.
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The source code of each library should be placed in a an own separate directory
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("lib/your_library_name/[here are source files]").
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For example, see a structure of the following two libraries `Foo` and `Bar`:
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|--lib
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| |
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| |--Bar
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| | |--docs
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| | |--examples
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| | |--src
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| | |- Bar.c
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| | |- Bar.h
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| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
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| |
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| |--Foo
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| | |- Foo.c
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| | |- Foo.h
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| |
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| |- README --> THIS FILE
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|
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|- platformio.ini
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|--src
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|- main.c
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and a contents of `src/main.c`:
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```
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#include <Foo.h>
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#include <Bar.h>
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int main (void)
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{
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...
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}
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```
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PlatformIO Library Dependency Finder will find automatically dependent
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libraries scanning project source files.
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More information about PlatformIO Library Dependency Finder
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- https://docs.platformio.org/page/librarymanager/ldf.html
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@ -0,0 +1,19 @@
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; PlatformIO Project Configuration File
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;
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; Build options: build flags, source filter
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; Upload options: custom upload port, speed and extra flags
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; Library options: dependencies, extra library storages
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; Advanced options: extra scripting
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;
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; Please visit documentation for the other options and examples
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; https://docs.platformio.org/page/projectconf.html
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[env:nanoatmega328]
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platform = atmelavr
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board = nanoatmega328
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framework = arduino
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board_build.mcu = atmega328p
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lib_deps =
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olkal/HX711_ADC@^1.2.7
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greiman/SSD1306Ascii@^1.3.0
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build_flags = -Wl,-u,vfprintf -lprintf_flt -lm
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#include <HX711_ADC.h>
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#include <SSD1306Ascii.h>
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#include <SSD1306AsciiWire.h>
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#if defined(ESP8266) || defined(ESP32) || defined(AVR)
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#include <EEPROM.h>
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#endif
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#define SCREEN_W 128
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#define SCREEN_H 32
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#define HX711_dout 4 // mcu > HX711 dout pin
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#define HX711_sck 5 // mcu > HX711 sck pin
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#define EEPROM_ADDRESS 0
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void calibrate();
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void changeSavedCalFactor();
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// HX711 constructor:
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HX711_ADC LoadCell(HX711_dout, HX711_sck);
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// OLED
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// Adafruit_SSD1306 oled(SCREEN_W, SCREEN_H, &Wire, -1);
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SSD1306AsciiWire oled;
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unsigned long t = 0;
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float highest_force = 0;
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bool first_run = true;
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void setup() {
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Serial.begin(57600);
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oled.begin(&Adafruit128x32, 0x3c);
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oled.setFont(System5x7);
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oled.clear();
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oled.print("Starting...");
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delay(50);
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Serial.println();
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Serial.println("Starting...");
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LoadCell.begin();
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unsigned long stabilizingtime =
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2000; // preciscion right after power-up can be improved by adding a few
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// seconds of stabilizing time
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boolean _tare = true; // set this to false if you don't want tare to be
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// performed in the next step
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LoadCell.start(stabilizingtime, _tare);
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if (LoadCell.getTareTimeoutFlag() || LoadCell.getSignalTimeoutFlag()) {
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Serial.println("Timeout, check MCU>HX711 wiring and pin designations");
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while (1)
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;
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} else {
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LoadCell.setCalFactor(1.0); // user set calibration value (float), initial
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// value 1.0 may be used for this sketch
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Serial.println("Startup is complete");
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}
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while (!LoadCell.update())
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; // wait
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// calibrate(); // start calibration procedure
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#if defined(ESP8266) || defined(ESP32)
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EEPROM.begin(512);
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#endif
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float eeprom_calibration_value;
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EEPROM.get(EEPROM_ADDRESS, eeprom_calibration_value);
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LoadCell.setCalFactor(eeprom_calibration_value);
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// Set number of samples used to average out results (default: 16)
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LoadCell.setSamplesInUse(1);
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oled.clear();
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oled.println("Press to start...");
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}
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void loop() {
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// static boolean newDataReady = 0;
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// const int serialPrintInterval = 0; //increase value to slow down serial
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// print activity
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if (LoadCell.update()) {
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float curr_reading = LoadCell.getData();
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char curr[18];
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char high[18];
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char newt[18];
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Serial.println(curr_reading);
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if (curr_reading < 0)
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curr_reading = 0;
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if (first_run) {
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oled.clear();
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first_run = false;
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}
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// Serial.println(curr_reading);
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oled.setCursor(0, 0);
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sprintf(curr, "Curr: %7.2f g", (double)curr_reading);
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oled.println(curr);
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if (highest_force < curr_reading) {
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highest_force = curr_reading;
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float newton = highest_force * 0.00980665;
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sprintf(high, "High: %7.2f g", (double)highest_force);
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sprintf(newt, "High: %7.2f N", (double)newton);
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oled.println(high);
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oled.println(newt);
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}
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}
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// receive command from serial terminal
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if (Serial.available() > 0) {
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char inByte = Serial.read();
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if (inByte == 't')
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LoadCell.tareNoDelay(); // tare
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else if (inByte == 'r')
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calibrate(); // calibrate
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else if (inByte == 'c')
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changeSavedCalFactor(); // edit calibration value manually
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else if (inByte == 'n')
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highest_force = 0;
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}
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// check if last tare operation is complete
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if (LoadCell.getTareStatus() == true) {
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Serial.println("Tare complete");
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}
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}
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void calibrate() {
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Serial.println("***");
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Serial.println("Start calibration:");
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Serial.println("Place the load cell an a level stable surface.");
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Serial.println("Remove any load applied to the load cell.");
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Serial.println("Send 't' from serial monitor to set the tare offset.");
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boolean _resume = false;
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while (_resume == false) {
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LoadCell.update();
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if (Serial.available() > 0) {
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if (Serial.available() > 0) {
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char inByte = Serial.read();
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if (inByte == 't')
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LoadCell.tareNoDelay();
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}
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}
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if (LoadCell.getTareStatus() == true) {
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Serial.println("Tare complete");
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_resume = true;
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}
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}
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Serial.println("Now, place your known mass on the loadcell.");
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Serial.println(
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"Then send the weight of this mass (i.e. 100.0) from serial monitor.");
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float known_mass = 0;
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_resume = false;
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while (_resume == false) {
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LoadCell.update();
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if (Serial.available() > 0) {
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known_mass = Serial.parseFloat();
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if (known_mass != 0) {
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Serial.print("Known mass is: ");
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Serial.println(known_mass);
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_resume = true;
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}
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}
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}
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LoadCell.refreshDataSet(); // refresh the dataset to be sure that the known
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// mass is measured correct
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float newCalibrationValue =
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LoadCell.getNewCalibration(known_mass); // get the new calibration value
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Serial.print("New calibration value has been set to: ");
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Serial.print(newCalibrationValue);
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Serial.println(
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", use this as calibration value (calFactor) in your project sketch.");
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Serial.print("Save this value to EEPROM adress ");
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Serial.print(EEPROM_ADDRESS);
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Serial.println("? y/n");
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_resume = false;
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while (_resume == false) {
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if (Serial.available() > 0) {
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char inByte = Serial.read();
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if (inByte == 'y') {
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#if defined(ESP8266) || defined(ESP32)
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EEPROM.begin(512);
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#endif
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EEPROM.put(EEPROM_ADDRESS, newCalibrationValue);
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#if defined(ESP8266) || defined(ESP32)
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EEPROM.commit();
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#endif
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EEPROM.get(EEPROM_ADDRESS, newCalibrationValue);
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Serial.print("Value ");
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Serial.print(newCalibrationValue);
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Serial.print(" saved to EEPROM address: ");
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Serial.println(EEPROM_ADDRESS);
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_resume = true;
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} else if (inByte == 'n') {
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Serial.println("Value not saved to EEPROM");
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_resume = true;
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||||
}
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||||
}
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}
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Serial.println("End calibration");
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Serial.println("***");
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Serial.println("To re-calibrate, send 'r' from serial monitor.");
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Serial.println("For manual edit of the calibration value, send 'c' from "
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"serial monitor.");
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Serial.println("***");
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}
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void changeSavedCalFactor() {
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float oldCalibrationValue = LoadCell.getCalFactor();
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boolean _resume = false;
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Serial.println("***");
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Serial.print("Current value is: ");
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Serial.println(oldCalibrationValue);
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Serial.println("Now, send the new value from serial monitor, i.e. 696.0");
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float newCalibrationValue;
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while (_resume == false) {
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if (Serial.available() > 0) {
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newCalibrationValue = Serial.parseFloat();
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if (newCalibrationValue != 0) {
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Serial.print("New calibration value is: ");
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Serial.println(newCalibrationValue);
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LoadCell.setCalFactor(newCalibrationValue);
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_resume = true;
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}
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}
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}
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_resume = false;
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Serial.print("Save this value to EEPROM adress ");
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Serial.print(EEPROM_ADDRESS);
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Serial.println("? y/n");
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while (_resume == false) {
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if (Serial.available() > 0) {
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char inByte = Serial.read();
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if (inByte == 'y') {
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#if defined(ESP8266) || defined(ESP32)
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EEPROM.begin(512);
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||||
#endif
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EEPROM.put(EEPROM_ADDRESS, newCalibrationValue);
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#if defined(ESP8266) || defined(ESP32)
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EEPROM.commit();
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#endif
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EEPROM.get(EEPROM_ADDRESS, newCalibrationValue);
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||||
Serial.print("Value ");
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Serial.print(newCalibrationValue);
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||||
Serial.print(" saved to EEPROM address: ");
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Serial.println(EEPROM_ADDRESS);
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_resume = true;
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||||
} else if (inByte == 'n') {
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Serial.println("Value not saved to EEPROM");
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||||
_resume = true;
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||||
}
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||||
}
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||||
}
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||||
Serial.println("End change calibration value");
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||||
Serial.println("***");
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||||
}
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@ -0,0 +1,11 @@
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||||
|
||||
This directory is intended for PlatformIO Unit Testing and project tests.
|
||||
|
||||
Unit Testing is a software testing method by which individual units of
|
||||
source code, sets of one or more MCU program modules together with associated
|
||||
control data, usage procedures, and operating procedures, are tested to
|
||||
determine whether they are fit for use. Unit testing finds problems early
|
||||
in the development cycle.
|
||||
|
||||
More information about PlatformIO Unit Testing:
|
||||
- https://docs.platformio.org/page/plus/unit-testing.html
|
||||
Loading…
Reference in new issue