Driver: Hw-597
is a common identifier for the CH340G USB-to-Serial TTL converter
- Go to System Settings → Privacy & Security → Scroll down to Security.
- Click Allow next to the blocked extension.
- Restart the system.
- HW-482 – Similar dual relay, sometimes active-high.
- SRD-05VDC-SL-C – Common relay model used on the HW-597.
- KY-019 – Single relay module with similar active-low behavior.
Verdict
// Turn Relay 1 OFF digitalWrite(RELAY1, HIGH); delay(1000); hw-597 driver
Common chips found on HW-597 boards:
Status Indicators
: Features onboard LEDs for Power ( PWR ), Transmit ( TXD ), and Receive ( RXD ) to help troubleshoot communication without external tools. is a common identifier for the CH340G USB-to-Serial