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  1. About pins of HC-SR04 Ultrasonic Sensor PCM and ... - Arduino …

    Oct 14, 2024 · Hello I have a basic question regarding these sensors that are connected to a Arduino UNO board: Pins Trig and Echo of HC-SR04 Ultrasonic Sensor PCM: Pins RXD and …

  2. Ultrasonic sensor aj-sr04m - Sensors - Arduino Forum

    Jan 15, 2025 · i have been trying to work with Waterproof ultrasonic sensor AJ-SR04m but i am not getting any genuine outputs from it .I have tried its mode 1 which requires open ckt. i.e no …

  3. Ultrasonic Sensor not working - Programming - Arduino Forum

    Apr 29, 2025 · Hi, I'm trying to make a ultrasonic sensor and using MB1242-000. MB1242-000 is connected to Arduino Uno and measure the distance from the ground. I wrote a …

  4. Code for ultrasonic sensor car / robotics car kit - Arduino Forum

    Sep 11, 2023 · Topic Replies Views Activity Ultrasonic srf05 Arduino Programming 4 966 May 5, 2021 Ultrasonic sensor and Servo Programming 3 1020 May 5, 2021 Need help with code for …

  5. Ultrasonic flow meter - General Guidance - Arduino Forum

    Sep 5, 2024 · how can i make an ultrasonic flow metre using arduino uno and hc sr04 sensor

  6. Ultrasonic Sensor USB Serial Python - Sensors - Arduino Forum

    Oct 21, 2024 · Here is my set up I have the sensor connected to the usb using wires connected to TX --> RXD and RX --> TXD. I also have the sensor on mode 5 per this forums instructions. …

  7. Ultrasonic Sensor Inconsistent Reading - Arduino Forum

    Dec 9, 2013 · Hi All, I'm working with a project that uses 4 pin hypersonic sensors and I'm getting inconsistent distances even when I'm not moving. Here's what code I'm using and what the …

  8. False readings on the ultrasonic sensor - Arduino Forum

    Apr 23, 2023 · Hi guys, I'm making an Arduino car that uses an ultrasonic sensor to dodge obstacles. The problem is that suddenly the sensor starts showing false data, marking 0 when …

  9. Ultrasonic Sensor Only Gives 0cm - Sensors - Arduino Forum

    Apr 14, 2024 · Hello! I am currently working on an obstacle-avoiding car, however, it seems like the ultrasonic sensor is not working. To test, I tried out codes from the internet and from my …

  10. A0221A4 ultrasonic sensor of RS-485 comm - Arduino Forum

    Jan 25, 2023 · Hello all, i am using the a RS485 ultrasonic sensor module "A0221A4". I connected the sensor to a TTL to RS-485 module and connected the module to the arduino uno over pin …