diff --git a/minions/NanoTestSuite/nano-modbus-test-master/nano-modbus-test-master.ino b/minions/NanoTestSuite/nano-modbus-test-master/nano-modbus-test-master.ino
new file mode 100644
index 00000000..62398f46
--- /dev/null
+++ b/minions/NanoTestSuite/nano-modbus-test-master/nano-modbus-test-master.ino
@@ -0,0 +1,94 @@
+#include <ArduinoModbus.h>
+#include <NeoSWSerial.h>
+
+#define TIMEOUT 2000  // Timeout period in milliseconds
+
+//Modbus communication
+const int TX_PIN = 9;
+const int RX_PIN = 8;
+
+const int DE_PIN = 7;  // Driver Enable pin (Ties to Receiver Enable) for RS485 
+const int RE_PIN = 6;  // Driver Enable pin (Ties to Driver Enable) for RS485 
+const int SLAVE_ID = 1;
+const int REGISTER_ID = 10;
+
+NeoSWSerial Serial1(RX_PIN, TX_PIN); // RX, TX
+uint8_t message[] = {0x01, 0x03, 0x00, 0x00, 0x00, 0x02, 0xC4, 0x0B};
+uint8_t receivedMessage[256];  // To store the received message
+uint8_t messageLength = 0;  // Length of the received message
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Starting setup...");
+  Serial1.begin(9600);
+  pinMode(DE_PIN, OUTPUT);  // Configure DE pin as output
+  pinMode(RE_PIN, OUTPUT);  // Configure DE pin as output
+  Serial.println("Finished setup!");
+}
+
+uint16_t calculateCRC(uint8_t *frame, uint8_t frameLength) {
+  uint16_t temp, temp2, flag;
+  temp = 0xFFFF;
+
+  for (uint8_t i = 0; i < frameLength; i++) {
+    temp = temp ^ frame[i];
+    for (uint8_t j = 1; j <= 8; j++) {
+      flag = temp & 0x0001;
+      temp >>= 1;
+      if (flag)
+        temp ^= 0xA001;
+    }
+  }
+
+  // Reverse byte order
+  temp2 = temp >> 8;
+  temp = (temp << 8) | temp2;
+  temp &= 0xFFFF;
+  return temp;
+}
+
+void loop() {
+  Serial.println("Top of loop!");
+
+  Serial.println("Sending Data...");
+  digitalWrite(DE_PIN, HIGH);  // Set RS485 to send mode
+  digitalWrite(RE_PIN, HIGH);  // Set RS485 to send mode
+  for (uint8_t i = 0; i < sizeof(message); i++) {
+    Serial1.write(message[i]); // Write each byte of the message
+  }
+
+  
+  Serial.println("Waiting for the response...");
+  digitalWrite(DE_PIN, LOW);  // Set RS485 to receive mode
+  digitalWrite(RE_PIN, LOW);  // Set RS485 to receive mode
+  unsigned long startTime = millis();
+  messageLength = 0;
+  while (millis() - startTime < TIMEOUT) {
+    if (Serial1.available()) {
+      receivedMessage[messageLength++] = Serial1.read();
+
+      // If we received enough data (at least 5 bytes, for address, function, byte count, and CRC)
+      if (messageLength >= 0) {
+        // Calculate and validate the CRC
+        uint16_t receivedCRC = ((uint16_t)receivedMessage[messageLength - 2] << 8) | receivedMessage[messageLength - 1];
+        uint16_t calculatedCRC = calculateCRC(receivedMessage, messageLength - 2);  // Ignore the CRC field
+
+        if (receivedCRC != calculatedCRC) {
+          for(uint8_t i = 0; i < messageLength; i++) {
+            Serial.print(receivedMessage[i], HEX);  // Print each byte in hexadecimal
+            Serial.print(" ");  // Add a space between bytes for readability
+            }
+            Serial.println();  // Print a newline at the end
+          break;
+        } else {
+          Serial.println("Failed CHECK");
+          delay(1000);
+          break;
+        }
+      } else {
+      Serial.println("Message  not available.");
+    }
+  
+  delay(1000);  // Delay before next loop (could be adjusted based on your needs)
+}
+  }  }
diff --git a/minions/NanoTestSuite/nano33ble-test-master/nano33ble-test-master.ino b/minions/NanoTestSuite/nano33ble-test-master/nano33ble-test-master.ino
index 772c25d3..db46c15f 100644
--- a/minions/NanoTestSuite/nano33ble-test-master/nano33ble-test-master.ino
+++ b/minions/NanoTestSuite/nano33ble-test-master/nano33ble-test-master.ino
@@ -1,33 +1,37 @@
 #include <ArduinoModbus.h>
 
-#define DE_PIN 7  // Driver Enable pin for RS485
+//Modbus communication
+const int DE_PIN = 7;  // Driver Enable pin (Ties to Receiver Enable) for RS485 
+const int RE_PIN = 6;  // Driver Enable pin (Ties to Driver Enable) for RS485 
+const int SLAVE_ID = 001;
+const int REGISTER_ID = 00;
 
 void setup() {
   Serial.begin(9600);
+  Serial1.begin(9600);
   pinMode(DE_PIN, OUTPUT);  // Configure DE pin as output
-  
-  if (!ModbusRTUClient.begin(9600)) {
+  pinMode(RE_PIN, OUTPUT);  // Configure DE pin as output
+
+  if (!ModbusRTUClient.begin(Serial1)) {
     Serial.println("Failed to start Modbus RTU Client!");
   }
+  
 }
 
 void loop() {
-  //Modbus communication
-  uint8_t serverId = 1;
-  uint16_t address = 0;
   uint16_t value = 1234; // example data
-  
-  digitalWrite(DE_PIN, HIGH);  // Set RS485 to send mode
-  if (ModbusRTUClient.holdingRegisterWrite(serverId, address, value) < 0) {
-    Serial.println("Modbus Write Failed");
-  }
+
+  ModbusRTUClient.holdingRegisterRead
 
   digitalWrite(DE_PIN, LOW);  // Set RS485 to receive mode
-  long readValue = ModbusRTUClient.holdingRegisterRead(serverId, address);
+  digitalWrite(RE_PIN, LOW);  // Set RS485 to receive mode
+  delay(100);
+  long readValue = ModbusRTUClient.holdingRegisterRead(SLAVE_ID, REGISTER_ID);
   if (readValue < 0) {
-    Serial.println("Modbus Read Failed");
+    Serial.println("Modbus Read#1 Failed");
+    Serial.println(ModbusRTUClient.lastError());
   } else {
-    Serial.print("Read Value: ");
+    Serial.print("Read#1 Value: ");
     Serial.println(readValue);
   }