MB102 Breadboard Laser Diode Module using the drive of CH341

using the drive of CH341 directly

and MFRC522 readers

It means only 5 voice commands are effective at the same time

used to enlarge the asynchronous serial interface of the computer or upgrade the common serial device to a USB bus directly

MB102 Breadboard Laser Diode Module using the drive of CH341Mb102 Breadboard Power Supply Module with series diode, polarity reversal protection. The module can take 6. 5V to 12V input and can produce 3. 3V and +5V. Can also output 5V on a USB connector and can also take input through a USB connector. Features Breadboard power supply module, with 5 V, 3. 3 V output voltages Apply to MB102 Standard breadboard Input voltage: 6. 5 12 V (DC) or 5V USB power supply Output voltage: 3. 3V and 5V can switch over