High-concerned chemical : none
Type : Module
Origin : Mainland China
Condition : New
p{margin-block-start: 0; margin-block-end: 0}【Product Status】Important: This item includes converter module + two 6-pin headers. Requires soldering before use!
1. Key Features
4-Channel Bidirectional: Converts 4 independent signals between 3.3V↔5V simultaneously
Full Protocol Support: Compatible with I2C, SPI, UART, 1-Wire, GPIO
Safe & Auto-Sensing: Built-in MOSFET circuit automatically detects signal direction
Wide Voltage Range: Supports conversion between any logic levels (1.8V-5V)
DIY-Friendly: Includes headers for custom soldering
2. Specifications
Channels: 4 bidirectional
High-Side Voltage: 1.8V-5V (typically 5V)
Low-Side Voltage: 1.8V-5V (typically 3.3V)
Protocols: I2C, SPI, UART, 1-Wire, GPIO
Module Size: 15×20mm
Operating Temp: -40℃~85℃
Package: 1×Converter + 2×6Pin Headers (unsoldered)
️ 3. Important Notes
【Must Read】Soldering Required:
Basic soldering skills needed
Recommended iron temperature: 300-350℃
Insert headers into breadboard for stability before soldering
Wiring Rules:
Signal lines must connect A1↔B1, A2↔B2, etc.
Must connect VCC & GND on both sides for module to work
Prohibited Uses:
NOT a power converter
Cannot handle high current (<25mA per channel)
Not for high-speed communication (>115200 baud without testing)
4. Soldering & Usage Guide
Step 1: Solder Headers
Insert two 6-pin headers into breadboard
Place module on top, align pins correctly
Solder from bottom, ensure good joints without shorts
Step 2: Connect Power
Side A: AVCC→5V+, AGND→5V-
Side B: BVCC→3.3V+, BGND→3.3V-
Step 3: Connect Signals
I2C Example: A1→5V device SDA, B1→3.3V device SDA
A2→5V device SCL, B2→3.3V device SCL
5. Typical Applications
Connect I2C devices between Arduino Uno (5V) and ESP32 (3.3V)
Raspberry Pi (3.3V) to 5V LCD1602 display
3.3V USB-to-Serial programmer for 5V microcontrollers
SPI communication in mixed-voltage systems (e.g., SD card modules)
6. Package Includes
1 × 4-Channel Logic Level Converter Module (PCB)
2 × 6-Pin Straight Headers (2.54mm pitch, unsoldered)
Purchase Recommendations
Beginner or want convenience? → Choose "Pre-soldered Version"
Bulk project needs? → "5-Pack" offers better value
No connection wires? → Recommend buying DuPont wire set
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No-delivery refund
