USB to TTL (Serial) Converter - CH340G

This is a CH340G USB to TTL (Serial) Converter. This converter is based on the CH340G USB to Serial TTL Converter chip. TTL stands for Transistor-Transistor Logic. This is a logic circuit technology used in digital circuits. TTL uses transistors to perform functions such as AND, OR, NOT, NAND, NOR, and XOR. The module can be used for 3.3V logic signals. By means of the Jumper Cap you can switch to 5V. The adapter uses the CH340 serial IC. This offers a cheap alternative to FTDI-based modules. Although this adapter is cheaper, there are no missing functionalities. After all drivers are installed, the adapter appears as a COM port on the computer. This makes it possible to use it with programs such as the Arduino IDE.