Gravity 360° I2C Rotary Encoder Module with LED

The DFRobot Gravity rotary encoder module outputs its position via I2C and shows it at the same time on an LED ring around the knob. The encoder has 20 detents per revolution; turning clockwise increases the value, turning counterclockwise decreases it. The step size per detent can be set by software from 1 to 51, so the same knob serves for fine or fast adjustments. Pressing the knob is detected as a button. With two Gravity connectors and four I2C addresses, up to four modules can be operated on one bus.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• 360° rotary encoder with 20 detents per revolution
• LED ring shows the current value
• Step size adjustable from 1 to 51 (1: one LED after 2.5 turns, 51: one LED per detent)
• Value range 0 to 1023
• Button function when pressing the knob
• I2C address 0x54 to 0x57 via two switches on the back
• Two Gravity connectors for daisy-chaining, up to 4 modules on one bus
• Operation at 3.3 V and 5 V

Application Examples:

• Adjusting volume, brightness or speed
• Colour mixing, for example three modules for red, green and blue
• Control panels for menus and measuring devices
• Setting servo angles

Documentation:

• DFRobot Wiki SEN0502
• Arduino library DFRobot_VisualRotaryEncoder on GitHub
• Addresses and commands (DFRobot Wiki)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0502
• Operating voltage: 3.3 V to 5 V
• Rotation angle: 360°, endless
• Detents: 20 per revolution
• Step size: 1 to 51
• Value range: 0 to 1023
• Interface: I2C, 2 Gravity connectors (VCC, GND, SCL, SDA)
• I2C address: 0x54 (factory default), 0x55, 0x56, 0x57
• Lifetime: 30000 ± 200 revolutions
• Contact resistance: max. 100 mΩ
• Insulation resistance: above 100 MΩ
• Bounce time: below 10 ms
• Operating temperature: -30 °C to 80 °C
• Dimensions: 37 × 37 × 33 mm
• Weight: 30 g

Scope of Delivery:

• 1× Gravity rotary encoder module with LED ring
• 1× 4-pin Gravity cable 30 cm (PH2.0 to Dupont female)