add tm1637 4digit 7segment display
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5d96c74fe2
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264db45641
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@ -19,3 +19,4 @@ monitor_speed= 115200
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lib_deps =
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bogde/HX711 @ 0.7.4
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Homie@3.0.0
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smougenot/TM1637
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156
src/main.cpp
156
src/main.cpp
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@ -8,6 +8,27 @@
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//Upload config: platformio run --target uploadfs
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#include <TM1637Display.h>
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#define TM1637_CLK D5
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#define TM1637_DIO D6
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TM1637Display display(TM1637_CLK, TM1637_DIO);
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const uint8_t SEG_DONE[] = {
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SEG_B | SEG_C | SEG_D | SEG_E | SEG_G, // d
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SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F, // O
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SEG_C | SEG_E | SEG_G, // n
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SEG_A | SEG_D | SEG_E | SEG_F | SEG_G // E
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};
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const uint8_t SEG_POINT[] = { SEG_DP};
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uint8_t display_data[] = { 0xff, 0xff, 0xff, 0xff };
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uint8_t display_blank[] = { 0x00, 0x00, 0x00, 0x00 };
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unsigned long last_displayupdate=0;
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#define DISPLAYUPDATEINTERVAL 100
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#include "HX711.h"
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@ -66,6 +87,10 @@ void setup() {
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Serial.begin(115200);
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display.setBrightness(7, true); //brightness 0 to 7
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Homie.disableResetTrigger(); //disable config reset if pin 1 (D3) is low on startup
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@ -97,42 +122,6 @@ void setup() {
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Serial.println("tared. measuring...");
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//after this taring put known weight on scale and get value from scale.get_units(10). then devide this value by the weight and use this number for set_scale(NUMBER)
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/*
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Serial.println("Before setting up the scale:");
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Serial.print("read: \t\t");
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Serial.println(scale.read()); // print a raw reading from the ADC
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Serial.print("read average: \t\t");
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Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
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Serial.print("get value: \t\t");
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Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight (not set yet)
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Serial.print("get units: \t\t");
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Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight (not set) divided
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// by the SCALE parameter (not set yet)
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scale.set_scale(2280.f); // this value is obtained by calibrating the scale with known weights; see the README for details
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scale.tare(); // reset the scale to 0
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Serial.println("After setting up the scale:");
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Serial.print("read: \t\t");
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Serial.println(scale.read()); // print a raw reading from the ADC
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Serial.print("read average: \t\t");
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Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
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Serial.print("get value: \t\t");
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Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight, set with tare()
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Serial.print("get units: \t\t");
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Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight, divided
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// by the SCALE parameter set with set_scale
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Serial.println("Readings:");
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*/
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}
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void loop() {
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@ -147,7 +136,7 @@ void loopHandler() {
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if (loopmillis>last_measure+MEASURE_INTERVAL) {
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last_measure=loopmillis;
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Serial.print("reading=");
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//Serial.print("reading=");
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weight_current=0;
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if (scale.wait_ready_timeout(1000)) { //for non blocking mode
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weight_read_pos++;
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@ -162,8 +151,8 @@ void loopHandler() {
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float weight_filtered=getFilteredWeight();
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float spread=getWeightSpread();
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Serial.println(weight_current);
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Serial.print("spread="); Serial.println(spread,3);
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//Serial.println(weight_current);
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//Serial.print("spread="); Serial.println(spread,3);
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@ -216,6 +205,91 @@ void loopHandler() {
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powerOff();
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}
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if (loopmillis > last_displayupdate + DISPLAYUPDATEINTERVAL) {
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last_displayupdate=loopmillis;
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uint8_t displayresolution=3; //how many digits after dot
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float numberdisplay=weight_current;
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bool _negative=false;
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if (numberdisplay<0) {
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numberdisplay*=-1;
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_negative=true;
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Serial.print("negative, ");
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}
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Serial.print("numberdisplay="); Serial.print(numberdisplay);
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if (numberdisplay>999.9 | displayresolution==0) {
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Serial.print(", 1k");
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display.showNumberDec((int)(numberdisplay+0.5), false); //just diplay number
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}else{
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Serial.print(", low-");
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uint8_t d1=0;
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uint8_t d2=0;
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uint8_t d3=0;
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uint8_t d4=0;
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if(numberdisplay<10 && displayresolution>=3) { // 5.241, 0.005 etc.
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Serial.print("<10");
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int _number=(int)(numberdisplay*1000+0.5); //in 1000th kg rounded
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Serial.print(" = "); Serial.print(_number);
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d1=_number%10;
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d2=(_number/10)%10;
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d3=(_number/100)%10;
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d4=(_number/1000)%10;
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display_data[3] = display.encodeDigit(d1); //rightmost digit
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display_data[2] = display.encodeDigit(d2);
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display_data[1] = display.encodeDigit(d3);
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display_data[0] = display.encodeDigit(d4); //leftmost digit
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display_data[0] |= SEG_DP; //add decimal point after left most digit
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}else if(numberdisplay<100 && displayresolution>=2) { //10.24, 99.20
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Serial.print("<100");
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int _number=(int)(numberdisplay*100+0.5); //in 100th kg rounded
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Serial.print(" = "); Serial.print(_number);
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d1=_number%10;
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d2=(_number/10)%10;
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d3=(_number/100)%10;
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d4=(_number/1000)%10;
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display_data[3] = display.encodeDigit(d1); //rightmost digit
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display_data[2] = display.encodeDigit(d2);
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display_data[1] = display.encodeDigit(d3);
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display_data[1] |= SEG_DP; //add decimal point after second digit from the left
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display_data[0] = display.encodeDigit(d4); //leftmost digit
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if (d4==0) { //number smaller than 1000
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display_data[0]={0}; //turn off left segment
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}
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}else if (numberdisplay<1000 && displayresolution>=1) //100.0, 999.9
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{
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Serial.print("<1000");
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int _number=(int)(numberdisplay*10+0.5); //in 10th kg rounded
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Serial.print(" = "); Serial.print(_number);
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d1=_number%10;
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d2=(_number/10)%10;
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d3=(_number/100)%10;
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d4=(_number/1000)%10;
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display_data[3] = display.encodeDigit(d1); //rightmost digit
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display_data[2] = display.encodeDigit(d2);
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display_data[2] |= SEG_DP; //add decimal point after second digit from the right
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display_data[1] = display.encodeDigit(d3);
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display_data[0] = display.encodeDigit(d4); //leftmost digit
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if (d4==0) { //number smaller than 1000
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display_data[0]={0}; //turn off left segment
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if (d3==0) { //number smaller than 100
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display_data[1]={0}; //turn off 2nd from left segment
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}
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}
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}
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if (_negative) { //show negative number by using rightmost dot
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display_data[3] |= SEG_DP;
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}
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/*
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*/
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Serial.println();
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display.setSegments(display_data);
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}
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}
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/*
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scale.power_down(); // put the ADC in sleep mode
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@ -323,8 +397,8 @@ bool cmdHandler(const HomieRange& range, const String& value) {
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}
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void powerOff() {
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Serial.println("Turning Off");
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Serial.flush();
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//Serial.println("Turning Off");
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//Serial.flush();
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delay(100);
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digitalWrite(PIN_SELFENABLE, LOW);
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}
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