simple metal detector with 2 NE555 Many radio amateurs dream of assembling a simple metal detector with their own hands to search for treasures. In my childhood, I also had such a dream, to find a huge wooden chest with treasure. And so I decided to implement it. Today I will tell you how to …
DIY metal detector A metal detector or metal locator is a device that locates metal containing objects in a dielectric or low conductive array. The device helps to detect various metal bodies in the ground, an array of building envelopes and structures, and in the depths of the ground at the bottom of reservoirs. A …
Arduino Digital Multimeter Premium version 2.0.0 added The new version 2.0.0 supports USB connection with OTG cable. For more information press the button “go to version 2.0.0”. Go to v 2.0.0 Discription Arduino Multimeter is a project based on an Arduino microcontroller and a smartphone. It is easy to do and does not require …
In this article, we use the Arduino development board and ultrasonic sensor to design a radar model for detection and ranging. RADAR is an object detection system that uses radio waves to identify the range, height, direction, and speed of objects. The radio wave pulses emitted by the radar antenna will be reflected from any object …
Radar prototype using ultrasonic sensors and Arduino Read More »
In this article, we designed a digital tachometer using Arduino and infrared sensors to measure the number of rotations of a rotating fan, RPM. Just connect the infrared sensor module with Arduino and 1602 LCD module to display. The infrared sensor module consists of a pair of infrared transmitters and receivers. Now, let us understand the knowledge of …
Infrared sensor and Arduino for speed measurement Read More »
Tesoro Lobo metal detector Tesoro Lobo metal detector is an amusing device. I will not touch on its operating frequency, this is a separate topic. But the gain of the channels of this MD is impressive: for example, the static channel (it also forms the sound signal, or rather its envelope) has a gain of about 45000. White’s …
In the previous article, we have introduced the use of FreeRTOS in the basics of Arduino and queue Queue kernel objects to use them. In this article, we will continue to learn more about FreeRTOS and its high-level APIs to help you understand the multitasking platform more deeply. Semaphore ( Semaphore ) mutex ( the Mutex ) is used for synchronization, resource management …
[Arduino FreeRTOS tutorial] How to use semaphore and mutex Read More »
Pulse PI-AR metal detector based on stm32f103c8t6 microcontroller. The name is taken from the words PI – pulse principle of operation, AR – abbreviated from ARM microcontroller. The software is developed in the Arduino environment. Metal detector parameters, coin detection by air, 25 mm to 25 cm, large objects up to 200 cm. The schematic diagram is shown in Fig. The principle of …
Metal detector Qasar on the AVR microcontroller The Quasar metal detector is a microcontroller-based IB metal detector designed with available electronic components. The metal detector uses a selective (selective) mode with audible multi-tone indication. There are 2 versions of the quasar metal detector circuit on the Atmega32 microcontroller and the STM32 microcontroller Scheme of the Kvazar metal detector on the …
VLF Madera metal detector Consider another homemade metal detector called “VLF Madera metal detector” that requires a minimum investment and not so much knowledge to assemble. The uniqueness of the metal detector is that it does not have a round coil, as in classic models, but an oval (or almost square) shape. The type of …
