Gravity: URM09 Ultrasonic Distance Sensor (2~500cm, Analog)
Ultrasonic ranging sensor with analog voltage output and built-in temperature compensation; 2–500 cm range. Compatible with Arduino and Raspberry Pi.
Pinout
- GNDGravity 3-pin connector, ground pin
Ground for the Gravity URM09 analog ultrasonic sensor connector.
Type · GroundVoltage · 0V - VCCGravity 3-pin connector, power input pin
Power input for the URM09 sensor. The DFRobot wiki specifies 3.3V to 5.5V DC supply.
Type · PowerVoltage · 3.3V to 5.5V - ASignalGravity 3-pin connector, analog output pin
Analog distance output. DFRobot documents the distance conversion as Distance = Vout(mV) × 520 / Vin(mV).
Type · AnalogVoltage · Analog output ratiometric to supply voltage
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| GND | Gravity 3-pin connector, ground pin | Ground | Ground for the Gravity URM09 analog ultrasonic sensor connector. | 0V |
| VCC | Gravity 3-pin connector, power input pin | Power | Power input for the URM09 sensor. The DFRobot wiki specifies 3.3V to 5.5V DC supply. | 3.3V to 5.5V |
| ASignal | Gravity 3-pin connector, analog output pin | Analog | Analog distance output. DFRobot documents the distance conversion as Distance = Vout(mV) × 520 / Vin(mV). | Analog output ratiometric to supply voltage |
Pin details
3 connections- GNDGravity 3-pin connector, ground pin
Ground for the Gravity URM09 analog ultrasonic sensor connector.
GroundVoltage · 0V - VCCGravity 3-pin connector, power input pin
Power input for the URM09 sensor. The DFRobot wiki specifies 3.3V to 5.5V DC supply.
PowerVoltage · 3.3V to 5.5V - ASignalGravity 3-pin connector, analog output pin
Analog distance output. DFRobot documents the distance conversion as Distance = Vout(mV) × 520 / Vin(mV).
AnalogVoltage · Analog output ratiometric to supply voltage
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Pimoroni describes its VL53L1X breakout as a compact time-of-flight distance sensor with I²C address 0x29, 4–400 cm range, 27° field of v…
Module pins: VCC, GND. Schematik maps them to your board in the app.
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