diff --git a/README.md b/README.md
index 29e50b6..9b4eb51 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # HX711 Based Torque Measurement
 
 [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/)
+[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/)
diff --git a/arduino_strain.ino b/arduino_strain.ino
index 7c75e8e..31bd8bb 100644
--- a/arduino_strain.ino
+++ b/arduino_strain.ino
@@ -5,52 +5,53 @@
 //     URL: https://github.com/RobTillaart/HX711
 
 
-#include "SevSeg.h"
 #include "HX711.h"
+#include "TM1637.h"
 
 HX711 scale;
 
-//  adjust pins if needed
-uint8_t dataPin = A1;
-uint8_t clockPin = A0;
+const int tm_clk = 2;
+const int tm_dio = 3;
+const uint8_t hx_dataPin = A1;
+const uint8_t hx_clockPin = A0;
+
+
+TM1637 tm1637(tm_clk, tm_dio);
+
+float strain;
 
-float f;
 
 
 void setup()
 {
-// 
-  byte numDigits = 4;
-  byte digitPins[] = {2, 3, 4, 5};
-  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);
+  // setup display
+  tm1637.init();
+  tm1637.set(BRIGHT_TYPICAL);//BRIGHT_TYPICAL = 2,BRIGHT_DARKEST = 0,BRIGHTEST = 7;
 
+  tm1637.displayStr((char *)"HI");
+  delay(1000);
 
+  // setup strain gauge amp
   Serial.begin(115200);
   // Serial.println();
   // Serial.println(__FILE__);
   // Serial.print("HX711_LIB_VERSION: ");
   // Serial.println(HX711_LIB_VERSION);
   // Serial.println();
-  scale.begin(dataPin, clockPin);
-  scale.set_scale(1);       // TODO you need to calibrate this yourself.
+  scale.begin(hx_dataPin, hx_clockPin);
+  scale.set_scale(100);       // TODO you need to calibrate this yourself.
+  tm1637.displayStr((char *)"tArE");
+  Serial.println("TARE");
   scale.tare();
-
 }
 
 
 void loop()
 {
-  //  continuous scale 4x per second
-  f = scale.get_units(1);
-  Serial.println(f);
+  strain = scale.get_units(1);
+  Serial.println(strain);
+
+  tm1637.displayNum(strain);
   delay(250);
 }