Supported Connections

TCP/IP (Wi‑Fi / LAN)

Step 1: Prepare Your Project

• Include EcrApi.h in your C/C++ project.
• Ensure your system supports socket communication.

Step 2: Configure Terminal Settings

• Enter terminal IP address and port (e.g., 192.168.0.102:8888).

Step 3: Connect to Terminal

• Call doTCPIPTransaction() with IP, port, request data, and signature.

Step 4: Perform Transaction

• Build request data (amount, CRN, etc.).
• Send transaction request.

Step 5: Review Response

• Parse response fields (approval code, receipt details).

Step 6: Disconnect Session

• Call disconnect method when done.

Flow Summary

Connect → Register (17) → Start Session (18) → Transaction (0) → Response → Disconnect

Example

doTCPIPTransaction("192.168.0.102", 8888, requestData, 0, signature, response);

Serial (COM / USB CDC)

Step 1: Identify COM Port

• Example: COM3.

Step 2: Configure Serial Parameters

• Baud rate, parity, data bits, stop bits.

Step 3: Connect to Terminal

• Call doCOMTransaction() with COM port and parameters.

Step 4: Perform Transaction

• Build request data and send.

Step 5: Review Response

• Parse approval/decline, receipt details.

Flow Summary

COM Connect → Register → Session → Transaction → Response

Example

doCOMTransaction("COM3", 9600, 0, 8, 1, requestData, 0, signature, response);

Bluetooth

Step 1: Pair Terminal

• Pair terminal with host system.

Step 2: Get Device Address

• Example: 00:11:22:33:44:55.

Step 3: Connect to Terminal

• Call doBlueToothTransaction() with MAC address.

Step 4: Perform Transaction

• Build request data and send.

Step 5: Review Response

• Parse approval/decline, receipt details.

Flow Summary

BT Connect → Transaction → Response

Example

doBlueToothTransaction("00:11:22:33:44:55", requestData, 0, signature, response);