The driver compiled. The unit tests passed (mocking the legacy JSON was a nightmare of interface{} types). We deployed to the staging environment.
Download the specific package tailored for your OS (Windows, Linux, or macOS). 2. Windows Installation Guide (Step-by-Step) ocpp-809 driver
The Central System rejected the handshake. Why? The driver compiled
Open Printer Properties > Ports . Ensure the selected checkbox aligns perfectly with the active virtual USB printing port ( USB001 , USB002 ). Avoid using physical USB 3.0 ports (blue color slots) if the system constantly disconnects; opt for stable, rear-mounted USB 2.0 ports. 📜 Issue 2: Printer Outputs Unreadable Gibberish Text opt for stable