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VMA349 

V. 01 

 01/04/2020 

©Velleman nv 

 

  // Step 3: Initialize the TF Mini sensor 

 

  tfmini.begin(&mySerial);     

 

 

 

 

void loop() { 

 

  // Take one TF Mini distance measurement 

 

  uint16_t dist = tfmini.getDistance(); 

 

  uint16_t strength = tfmini.getRecentSignalStrength(); 

 

 

 

  // Display the measurement 

 

  Serial.print(dist); 

 

  Serial.print(" cm      sigstr: "); 

 

  Serial.println(strength); 

 

 

 

  // Wait some short time before taking the next measurement 

 

  delay(25);   

 

 

9.

 

Technical Specifications 

 

 

operating range .................................................................................................. 0.3-12 m 

 

maximum operating range at 10% reflectivity ................................................................ 5 m 

 

average power consumption...................................................................................... 0.6 W 

 

applicable voltage range ............................................................................................... 5 V 

 

minimum resolution ratio ........................................................................................... 1 cm 

 

frequency ............................................................................................................. 100 Hz 

 

accuracy .................................................................................. 1 % (< 6 m), 2 % (6-12 m) 

 

distance detection unit ................................................................................................. cm 

 

wavelength .......................................................................................................... 850 mm 

 

communication interface ................................................................................ UART 115200 

 

LED peak current .................................................................................................. 800 mA 

 

serial port TTL voltage level ....................................................................................... 3.3 V 

 

dimensions ................................................................. 42 ×15 ×16 mm (1.65 x 0.6 x 0.62") 

 

operating temperature .................................................................................. -20 to +60 °C 

 

weight ..................................................................................................................... 4.7 g 

 

 

 

 

 

Use this device with original accessories only. Velleman nv cannot be held 
responsible in the event of damage or injury resulting from (incorrect) use of this 
device. For more info concerning this product and the latest version of this manual, 
please visit our website www.velleman.eu. The information in this manual is subject 
to change without prior notice.

 

 

 

 

© COPYRIGHT NOTICE 
The copyright to this manual is owned by Velleman nv. All worldwide rights reserved. 

No part of this manual may be copied, reproduced, translated or reduced to any electronic 
medium or otherwise without the prior written consent of the copyright holder.  

 

Summary of Contents for VMA349

Page 1: ...VMA349 USER MANUAL 2...

Page 2: ...8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the devi...

Page 3: ...light principle and integrates unique optical and electrical designs so as to achieve stable precise high sensitivity and high speed distance detection ToF s operating principle is as follows a modula...

Page 4: ...e VMA349 to the VMA410 and VMA100 as in the table above 2 Download the tfmini master zip file from our website 3 Open the Arduino IDE and load the tfmini master zip library 4 Once the library is loade...

Page 5: ...e like this distance from VMA439 to object 203 cm signal strength 136 Be sure the baud rate is at 115200 baud As this baud rate is quite high try to use short RX TX wires otherwise glitches can appear...

Page 6: ...EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED IN NO EVENT SHALL THE AUTHOR S BE LIABLE FOR A...

Page 7: ...unit cm wavelength 850 mm communication interface UART 115200 LED peak current 800 mA serial port TTL voltage level 3 3 V dimensions 42 15 16 mm 1 65 x 0 6 x 0 62 operating temperature 20 to 60 C wei...

Page 8: ...shocks falls dust dirt humidity and by the article as well as its contents e g data loss compensation for loss of profits consumable goods parts or accessories that are subject to an aging process du...

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