Maxbotix Ultrasonic Rangefinder - LV-EZ1
Ultrasonic rangefinder detecting objects from 0 to 254 inches (6.45 m) with 1-inch resolution beyond 6 inches. Outputs pulse width, analog voltage (Vcc/512 V/inch), and 9600 baud serial.
Pinout
- BW1
Pin 1. Leave open or hold low for serial output on TX; hold high for pulse output on TX for low-noise chaining.
Type · ControlVoltage · Logic level is 0-Vcc, per LV-MaxSonar-EZ datasheet. - PW2
Pin 2. Pulse-width range output; distance scale factor is 147 us per inch.
Type · Signal - AN3
Pin 3. Analogue voltage range output corresponding to the most recent range data.
Type · AnalogVoltage · Scale factor is Vcc/512 volts per inch, about 9.8 mV/in at 5 V or 6.4 mV/in at 3.3 V. - RX4
Pin 4. Range-command input. Left unconnected or held high for continuous ranging; hold low to stop ranging; bring high for 20 us or more to command a reading.
Type · UARTVoltage · Internally pulled high, logic level follows Vcc. - TX5
Pin 5. Asynchronous serial range output when BW is open/low; outputs ASCII R plus three range digits and carriage return at 9600 baud, 8N1. Sends a single pulse when BW is held high.
Type · UARTVoltage · 0-Vcc output, not true RS-232 levels. - +5V6
Pin 6. Vcc supply input for the LV-MaxSonar-EZ sensor.
Type · PowerVoltage · Operates on 2.5 V to 5.5 V; recommended current capability 3 mA at 5 V or 2 mA at 3 V. - GND7
Pin 7. DC power-supply return.
Type · GroundVoltage · Ground reference; datasheet notes GND and Vcc should be ripple/noise free.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| BW | 1 | Control | Pin 1. Leave open or hold low for serial output on TX; hold high for pulse output on TX for low-noise chaining. | Logic level is 0-Vcc, per LV-MaxSonar-EZ datasheet. |
| PW | 2 | Signal | Pin 2. Pulse-width range output; distance scale factor is 147 us per inch. | |
| AN | 3 | Analog | Pin 3. Analogue voltage range output corresponding to the most recent range data. | Scale factor is Vcc/512 volts per inch, about 9.8 mV/in at 5 V or 6.4 mV/in at 3.3 V. |
| RX | 4 | UART | Pin 4. Range-command input. Left unconnected or held high for continuous ranging; hold low to stop ranging; bring high for 20 us or more to command a reading. | Internally pulled high, logic level follows Vcc. |
| TX | 5 | UART | Pin 5. Asynchronous serial range output when BW is open/low; outputs ASCII R plus three range digits and carriage return at 9600 baud, 8N1. Sends a single pulse when BW is held high. | 0-Vcc output, not true RS-232 levels. |
| +5V | 6 | Power | Pin 6. Vcc supply input for the LV-MaxSonar-EZ sensor. | Operates on 2.5 V to 5.5 V; recommended current capability 3 mA at 5 V or 2 mA at 3 V. |
| GND | 7 | Ground | Pin 7. DC power-supply return. | Ground reference; datasheet notes GND and Vcc should be ripple/noise free. |
Pin details
7 connections- BW1
Pin 1. Leave open or hold low for serial output on TX; hold high for pulse output on TX for low-noise chaining.
ControlVoltage · Logic level is 0-Vcc, per LV-MaxSonar-EZ datasheet. - PW2
Pin 2. Pulse-width range output; distance scale factor is 147 us per inch.
Signal - AN3
Pin 3. Analogue voltage range output corresponding to the most recent range data.
AnalogVoltage · Scale factor is Vcc/512 volts per inch, about 9.8 mV/in at 5 V or 6.4 mV/in at 3.3 V. - RX4
Pin 4. Range-command input. Left unconnected or held high for continuous ranging; hold low to stop ranging; bring high for 20 us or more to command a reading.
UARTVoltage · Internally pulled high, logic level follows Vcc. - TX5
Pin 5. Asynchronous serial range output when BW is open/low; outputs ASCII R plus three range digits and carriage return at 9600 baud, 8N1. Sends a single pulse when BW is held high.
UARTVoltage · 0-Vcc output, not true RS-232 levels. - +5V6
Pin 6. Vcc supply input for the LV-MaxSonar-EZ sensor.
PowerVoltage · Operates on 2.5 V to 5.5 V; recommended current capability 3 mA at 5 V or 2 mA at 3 V. - GND7
Pin 7. DC power-supply return.
GroundVoltage · Ground reference; datasheet notes GND and Vcc should be ripple/noise free.
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