Fermion: URM37 Ultrasonic Distance Sensor Breakout (2～800cm, RS232 / UART)

The URM37 V5.0 is an ultrasonic sensor with temperature compensation, versatile outputs, and improved range. Compatible with various boards, it offers stable measurement.

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 · digital io
ECHOOfficial table 2 row 4
Measured distance presented by the Data Output0-25000US by PWM pulse width,1 CM /50US representative
Type · digital io
SERVOOfficial table 2 row 5
Servo Control Pin

Start wiring

Analog · UART

Verify supply voltage and logic levels before powering up.

Module pins: VCC, RXD, TXD, GND, DAC_OUT. Schematik maps them to your board in the app.

Related groups

4 groups

Air quality

Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.

Sensors · Gas & air-quality sensors · 29 parts

Temp and humidity

DHT11, DHT22/AM2302, and DHT20/AHT20 sensors solve the same broad job, but only some are acceptable substitutes in the same circuit.

Sensors · Environment sensors · 19 parts

Environment sensors

Choose between temperature-only, temperature/humidity, pressure and indoor air-quality modules without treating every environmental sensor as a drop-in substitute.

Sensors · Environment sensors · 8 parts

Light and colour

Photoresistors and color sensors both respond to light, but they expose very different signals and are not sensible drop-in substitutes.

Sensors · Light & color sensors · 6 parts

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	digital io	Reset
ECHO	Official table 2 row 4	digital io	Measured distance presented by the Data Output0-25000US by PWM pulse width,1 CM /50US representative
SERVO	Official table 2 row 5	pin	Servo Control Pin
COMP/TRIG	Official table 2 row 6	digital io	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	power	Asynchronous communication module data receiving pin: RS232/TTL level
TXD	Official table 2 row 9	power	Asynchronous communication module data receiving pin: RS232/TTL level

Pinout

Start wiring

Air quality

Temp and humidity

Environment sensors

Light and colour