
DFR0991 · DFRobot

An I2C button module with RGB LED, allowing for independent control of LED colors and button status. Supports cascading up to 8 modules and offers tactile feedback. (DFRobot DFR0991)
| Part number | DFR0991 |
|---|---|
| Manufacturer | DFRobot |
| Category | User Input & Controls › Buttons & Keypads |
| Pins | 4 |
Gravity: I2C RGB LED Colorful Button Module pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | VCC | power | |
| 2 | GND | ground | |
| 3 | C (SCL/TX) | bidirectional | I2C SCL, or UART - see the module's pinout |
| 4 | D (SDA/RX) | bidirectional | I2C SDA, or UART - see the module's pinout |
Schematic symbol and footprint
Schematic symbol
Footprint: JST PH 2.0 mm 4-pin through-hole (Gravity PH2.0-4P) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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