Fermion: URM37 Ultrasonic Distance Sensor Breakout (2~800cm, RS232 / UART)
URM37 V5.0 ultrasonic distance sensor with temperature compensation and 2–800cm range. Supports RS232 and UART output; compatible with various microcontroller boards.
Pinout
- VCCOfficial table 2 row 1
Power input (3.3V-5.5V)
Type · Power - GNDOfficial table 2 row 2
Ground
Type · Ground - NRSTOfficial table 2 row 3
Reset
Type · Control - ECHOOfficial table 2 row 4
Measured distance presented by the Data Output0-25000US by PWM pulse width,1 CM /50US representative
Type · GPIO - SERVOOfficial table 2 row 5
Servo Control Pin
Type · Unknown - COMPTRIGOfficial table 2 row 6
COMP：On/OFF mode, when the detected distance is smaller than a pre-set value, this pin pulls low./TRIG：PWM mode trigger input
Type · GPIO - DAC_OUTOfficial table 2 row 7
Analog voltage output; the voltage is proportional to the distance
Type · Analog - RXDOfficial table 2 row 8
Asynchronous communication module data receiving pin: RS232/TTL level
Type · UART - TXDOfficial table 2 row 9
Asynchronous communication module data receiving pin: RS232/TTL level
Type · UART
| Pin | Position | Type | Function |
|---|---|---|---|
| VCC | Official table 2 row 1 | Power | Power input (3.3V-5.5V) |
| GND | Official table 2 row 2 | Ground | Ground |
| NRST | Official table 2 row 3 | Control | Reset |
| ECHO | Official table 2 row 4 | GPIO | Measured distance presented by the Data Output0-25000US by PWM pulse width,1 CM /50US representative |
| SERVO | Official table 2 row 5 | Unknown | Servo Control Pin |
| COMPTRIG | Official table 2 row 6 | GPIO | COMP：On/OFF mode, when the detected distance is smaller than a pre-set value, this pin pulls low./TRIG：PWM mode trigger input |
| DAC_OUT | Official table 2 row 7 | Analog | Analog voltage output; the voltage is proportional to the distance |
| RXD | Official table 2 row 8 | UART | Asynchronous communication module data receiving pin: RS232/TTL level |
| TXD | Official table 2 row 9 | UART | Asynchronous communication module data receiving pin: RS232/TTL level |
Pin details
9 connections- VCCOfficial table 2 row 1
Power input (3.3V-5.5V)
Power - GNDOfficial table 2 row 2
Ground
Ground - NRSTOfficial table 2 row 3
Reset
Control - ECHOOfficial table 2 row 4
Measured distance presented by the Data Output0-25000US by PWM pulse width,1 CM /50US representative
GPIO - SERVOOfficial table 2 row 5
Servo Control Pin
Unknown - COMPTRIGOfficial table 2 row 6
COMP：On/OFF mode, when the detected distance is smaller than a pre-set value, this pin pulls low./TRIG：PWM mode trigger input
GPIO - DAC_OUTOfficial table 2 row 7
Analog voltage output; the voltage is proportional to the distance
Analog - RXDOfficial table 2 row 8
Asynchronous communication module data receiving pin: RS232/TTL level
UART - TXDOfficial table 2 row 9
Asynchronous communication module data receiving pin: RS232/TTL level
UART
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, RXD, TXD, GND, DAC_OUT. Schematik maps them to your board in the app.
Distance sensors
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