Logic Level Converter 4-Channel Bidirectional Module — 3.3V / 5V

Logic Level Converter 4-Channel Bidirectional Module — 3.3V / 5V

A 4-channel bidirectional logic level converter for safely interfacing 3.3V and 5V devices. Uses MOSFET-based level shifting that supports I2C, SPI, UART, and general digital signals in both directions simultaneously. The standard solution for connecting 3.3V sensors (BME280, MPU-6050, nRF24L01+) to a 5V Arduino without damage.

Key Specifications

• Channels: 4 bidirectional | Voltages: 3.3V ↔ 5V
• Type: MOSFET-based (BSS138) | Protocols: I2C / SPI / UART / GPIO
• Max frequency: ~4MHz | Supply: 3.3V LV + 5V HV
• Compliance: RoHS compliant

Why Choose This?

• ✅ Bidirectional — signals pass in both directions simultaneously
• ✅ I2C compatible — correct open-drain level shifting for I2C protocol
• ✅ 4 channels — convert SDA, SCL, and 2 additional signals at once
• ✅ No external power needed — powered from LV (3.3V) and HV (5V) pins

Typical Applications

• Connecting 3.3V I2C sensors to 5V Arduino
• SPI level conversion for 3.3V flash and SD cards
• UART level conversion between 3.3V and 5V devices
• Mixed-voltage digital signal interfacing

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.