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add 7segment display

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Daniel Mevec 2025-11-12 20:27:54 +01:00
parent aa3bad78f3
commit 38913b68c7
2 changed files with 26 additions and 24 deletions
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3
README.md
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@ -1,5 +1,6 @@
# HX711 Based Torque Measurement # HX711 Based Torque Measurement
[SparkFun HX711 Load Cell Amp Board](https://www.sparkfun.com/sparkfun-load-cell-amplifier-hx711.html) [SparkFun HX711 Load Cell Amp Board](https://www.sparkfun.com/sparkfun-load-cell-amplifier-hx711.html)
[Arduino Library by Rob Tillaart](https://github.com/RobTillaart/HX711/) [Arduino Library by Rob Tillaart](https://github.com/RobTillaart/HX711/)
[AZ Delivery 7-segment display](https://www.az-delivery.de/en/products/4-digit-display)
[seeed studio Grove Display Driver](https://github.com/Seeed-Studio/Grove_4Digital_Display/)

47
arduino_strain.ino
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@ -5,52 +5,53 @@
// URL: https://github.com/RobTillaart/HX711 // URL: https://github.com/RobTillaart/HX711
#include "SevSeg.h"
#include "HX711.h" #include "HX711.h"
#include "TM1637.h"
HX711 scale; HX711 scale;
// adjust pins if needed const int tm_clk = 2;
uint8_t dataPin = A1; const int tm_dio = 3;
uint8_t clockPin = A0; const uint8_t hx_dataPin = A1;
const uint8_t hx_clockPin = A0;
TM1637 tm1637(tm_clk, tm_dio);
float strain;
float f;
void setup() void setup()
{ {
// // setup display
byte numDigits = 4; tm1637.init();
byte digitPins[] = {2, 3, 4, 5}; tm1637.set(BRIGHT_TYPICAL);//BRIGHT_TYPICAL = 2,BRIGHT_DARKEST = 0,BRIGHTEST = 7;
byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
byte hardwareConfig = COMMON_ANODE; // See README.md for options
bool updateWithDelays = false; // Default 'false' is Recommended
bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
bool disableDecPoint = false; // Use 'true' if your decimal point doesn't exist or isn't connected. Then, you only need to specify 7 segmentPins[]
sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
updateWithDelays, leadingZeros, disableDecPoint);
tm1637.displayStr((char *)"HI");
delay(1000);
// setup strain gauge amp
Serial.begin(115200); Serial.begin(115200);
// Serial.println(); // Serial.println();
// Serial.println(__FILE__); // Serial.println(__FILE__);
// Serial.print("HX711_LIB_VERSION: "); // Serial.print("HX711_LIB_VERSION: ");
// Serial.println(HX711_LIB_VERSION); // Serial.println(HX711_LIB_VERSION);
// Serial.println(); // Serial.println();
scale.begin(dataPin, clockPin); scale.begin(hx_dataPin, hx_clockPin);
scale.set_scale(1); // TODO you need to calibrate this yourself. scale.set_scale(100); // TODO you need to calibrate this yourself.
tm1637.displayStr((char *)"tArE");
Serial.println("TARE");
scale.tare(); scale.tare();
} }
void loop() void loop()
{ {
// continuous scale 4x per second strain = scale.get_units(1);
f = scale.get_units(1); Serial.println(strain);
Serial.println(f);
tm1637.displayNum(strain);
delay(250); delay(250);
} }