# Arduino proximity system **URL:** \ **Category:** General Guidance\ **Created:** [January 16, 2023, 12:53pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116 "2023-01-16T12:53:30Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![peter\_war](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/peter_war/32/910044_2.png) [@peter\_war](https://forum.arduino.cc/u/peter_war)\ **Post date:** [January 16, 2023, 12:53pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/1 "2023-01-16T12:53:30Z")
Hi, i am planning to make a arduino system that is connected to device that I will be carrying such that if I walk away lets say about 2m, the Arduino will set out an buzzer. Any suggestions on what kind of component/sensor I should use for this? ---
**Author:** ![srnet](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/srnet/32/238868_2.png) [@srnet](https://forum.arduino.cc/u/srnet)\ **Post date:** [January 16, 2023, 1:09pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/2 "2023-01-16T13:09:19Z")
> [@peter\_war](#): > > about 2m Define 'about 2M' as in to what level of accuracy ? ---
**Author:** ![peter\_war](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/peter_war/32/910044_2.png) [@peter\_war](https://forum.arduino.cc/u/peter_war)\ **Post date:** [January 16, 2023, 2:10pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/3 "2023-01-16T14:10:07Z")
okay I mean not really 2m per se. What I mean is something like a proximity car key, so if I walk away a certain distance it will trigger an alert. I am trying to replicate this feature using an Arduino. ---
**Author:** ![srnet](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/srnet/32/238868_2.png) [@srnet](https://forum.arduino.cc/u/srnet)\ **Post date:** [January 16, 2023, 6:34pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/4 "2023-01-16T18:34:06Z")
You could try using one of those el-cheapo 433Mhz modules to send an I am here message. If the receiver does not get the I am here for a set period it knows its out of range. These cheapo modules are short range, and whilst you should leave the transmitter modules antenna alone, you could cut down the receivers antenna to get the distance you want. ---
**Author:** ![bidrohini](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/bidrohini/32/1126551_2.png) [@bidrohini](https://forum.arduino.cc/u/bidrohini)\ **Post date:** [January 16, 2023, 6:40pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/5 "2023-01-16T18:40:39Z")
What are you actually trying to do? Are you trying to make a portable/wearable device that will calculate your walking distance? ---
**Author:** ![peter\_war](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/peter_war/32/910044_2.png) [@peter\_war](https://forum.arduino.cc/u/peter_war)\ **Post date:** [January 25, 2023, 4:09pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/7 "2023-01-25T16:09:11Z")
Thanks i'll check on them and see. ---
**Author:** ![peter\_war](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/peter_war/32/910044_2.png) [@peter\_war](https://forum.arduino.cc/u/peter_war)\ **Post date:** [January 25, 2023, 4:10pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/8 "2023-01-25T16:10:40Z")
Yes, i am intending to make a portable device, such that if I am carrying this portable device and walk a few steps away from my main arduino, I should receive an alarm on my main arduino. Something like this: [HM10 Bluetooth module, Proximity/Distance Sensing using Arduino (Code available) - YouTube](https://www.youtube.com/watch?v=9p7ZshMjA28) But in my case, I only want my main Arduino to detect my portable device and no other device. ---
**Author:** ![bidrohini](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/bidrohini/32/1126551_2.png) [@bidrohini](https://forum.arduino.cc/u/bidrohini)\ **Post date:** [January 26, 2023, 12:39pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/9 "2023-01-26T12:39:12Z")
I think you can take a look at this: [Arduino Projects - Walking Steps Calculator using ADXL345](https://www.engineersgarage.com/arduino-based-walking-steps-distance-calculator-adxl345/) It's based on Arduino UNO and ADXL345 Accelerometer. ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [July 25, 2023, 12:39pm UTC](https://forum.arduino.cc/t/arduino-proximity-system/1078116/10 "2023-07-25T12:39:46Z")
Closed on July 25, 2023, 12:39pm UTC This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.