Fermion: URM37 Ultrasonic Sensor (2～800cm) Brand_C4 Labs it won't work without a

it won't work without a battery

All the code in written in python and is open source so its easy to adapt and write your own custom printer software

Power consumption: 117 mW @ 3

4GHz wireless technology with a sampling frequency of up to 120Hz

Maximum output is around 5W which is good for most smart phones

Fermion: URM37 Ultrasonic Sensor (2～800cm) Brand_C4 Labs it won't work without aURM37 V5. 0 is a powerful ultrasonic sensor mudule with bulit in temperature compensation to ensure accurate distance measurement in the scene of temperature changing applications. It has rich interface and offers various output: analog output, switch, serial (TTL and RS232 level optional), PWM and so on. With analog mode, the sensor outputs voltage which is proportional with distance, it can be connected to Arduino, Raspberry Pi and