Brand: KNACRO

Model: Isolated USB to Serial Module

Module Features
1.CH340T master chip, high-speed stability, the limit speed 1Mbps (921600bps)
2.Optocoupler isolation program, high speed, low error, ultra stable.
3.The use of original lengthened isolation power supply, the greater the spacing, better isolation, higher pressure.
4.Increase the isolation partition, width 4mm or more.
5.Output TX RX integrated protection diode to improve the impact resistance.
6.USB end and serial output without any electrical connection, the full protection of the computer USB port will not be due to external short circuit, shock and other damage. To avoid interference caused by the computer crash, communication instability.
7.Output level and power supply voltage can be switched to 5V / 3.3V system (not a fake power switch).
8.Supports power supply to external low power devices up to 150mA. (General communication can not access)
9.On-board isolation diodes to support STC single-chip programming (STC microcontroller programming program must be off the cold start, then the general high-level serial port TX terminal through the P30 pin to the microcontroller power supply, resulting in power is not complete Download failed, only add the isolation diode to use the serial port)
10.Integrated power, send and receive three LED indicators.

Pin Description
1.5V / 3.3V select pin: switch

• CH340T master chip, high-speed stability, the limit speed 1Mbps (921600bps)
• Optocoupler isolation program, high speed, low error, ultra stable.
• The use of original lengthened isolation power supply, the greater the spacing, better isolation, higher pressure.
• Output TX RX integrated protection diode to improve the impact resistance.
• USB end and serial output without any electrical connection, the full protection of the computer USB port will not be due to external short circuit, shock and other damage. To avoid interference caused by the computer crash, communication instability.