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This module converts power and signal voltages such as I2C and UART. It has Grove-compatible and Qwiic-compatible connectors.
It allows bidirectional connection between 3.3V and 5V systems.
It supports the following 4 voltage conversion patterns.
| Master side | Slave side | Example | |||
|---|---|---|---|---|---|
| Power | Signal | Power | Signal | ||
| ① | 5V | 5V | 3.3V | 3.3V | Arduino Uno → Qwiic Module |
| ② | 5V | 3.3V | 3.3V | 3.3V | M5Stack Core2 → Qwiic Module |
| ③ | 3.3V | 3.3V | 5V | 3.3V | Raspberry Pi → M5Stack Unit |
| ④ | 3.3V | 3.3V | 5V | 5V | Raspberry Pi → Grove module (5V) |
Part Names
* The color of the jumper caps may differ from the image.
Sales
Please contact us for bulk orders and inventory inquiries.
Included Items
- Board ×1
How to connect
Connect the master and slave devices by setting jumper pins for each pattern of power supply and signal voltages on the master and slave sides as shown below.
- ① Power: 5V, Signal: 5V → Power: 3.3V, Signal: 3.3V
- Power supply voltage conversion direction selection jumper (J4・J5):
5V->3V3 - Signal voltage selection jumper of 5V system side (J9):
5V
- Power supply voltage conversion direction selection jumper (J4・J5):
- ② Power:5V, Signal:3.3V→Power:3.3V, Signal:3.3V
- Power supply voltage conversion direction selection jumper (J4・J5):
5V->3V3 - Signal voltage selection jumper of 5V system side (J9):
3V3
- Power supply voltage conversion direction selection jumper (J4・J5):
- ③ Power:3.3V, Signal:3.3V→Power:5V, Signal:3.3V
- Power supply voltage conversion direction selection jumper (J4・J5):
3V3->5V - Signal voltage selection jumper of 5V system side (J9):
3V3
- Power supply voltage conversion direction selection jumper (J4・J5):
- ④ Power:3.3V, Signal:3.3V→Power:5V, Signal:5V
- Power supply voltage conversion direction selection jumper (J4・J5):
3V3->5V - Signal voltage selection jumper of 5V system side (J9):
5V
- Power supply voltage conversion direction selection jumper (J4・J5):
How to mount
Screw mount
Use spacers to mount to the desired board.
※Spacers and screws are not included.
DIN rail mount
Screw the DIN rail adapter (Phoenix Contact 1201578) as shown in the image.
※DIN rail adapter and screws are not included.
Specifications
- Maximum data rate
- Open drain (e.g. I2C): 2 Mbps
- Push-pull (e.g. UART): 24 Mbps
- Maximum output current
- 5V → 3.3V：1.0 A
- 3.3V → 5V：250 mA
- Dimensions: W32 x D40 x H11.5 mm
Documents
Schematic
PDF file：schematic-v1_0.pdf
Dimensions
DXF file: dimension_dxf.zip
3D CAD Data
STEP file：3d_step.zip