MB102 Breadboard Laser Diode Module and MFRC522 readers

and MFRC522 readers

half the size of a half-size breadboard

Solder Wire 100g — 60/40 Tin/Lead

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 and MFRC522 readersMb102 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