In this post I will show how to construct wireless office calling bell which can be used for calling 6 different personnel from head’s / boss’s desk or some other calling bell type fun project for your home. Using nRF24L01 2.4 GHz module We will be constructing a simple wireless calling bell using Arduino and nRF24L01 […]
Wireless
How to Make a Wireless Robotic Arm using Arduino
This robotic arm circuit which can be also implemented like a robotic crane, works using 6 servo motors and can be controlled through a microcontroller remote control, using an Arduino based 2.4 GHz communication link. Main Features When you are building something as sophisticated as a robotic arm, it must look modern and must include many […]
Ultrasonic Wireless Water Level Indicator – Solar Powered
An ultrasonic water level controller is a device which can detect water levels in a tank without a physical contact and send the data to a distant LED indicator in a wireless GSM mode. In this post I will show how to construct a ultrasonic based solar powered wireless water level indicator using Arduino in […]
Wireless Mobile Phone Charger Circuit
A wireless mobile phone battery charger is a device that charges a compatible cellphone or mobile phone placed close to it, through high frequency wireless current transfer, without any physical contact. In this post I have explained how to build a wireless cellphone battery charger circuit for facilitating a cordless cellphone charging without employing a […]
433 MHz Remote Infrared Wireless Alarm
A simple infrared wireless alarm circuit can be built using an 433 MHz RF remote control unit a TSOP based IR sensor, I have explained the procedures in detail. In a few of the other posts I have discussed regarding these RF remote control modules. For more info you may go through the following relevant […]
Anti Spy RF Detector Circuit – Wireless Bug Detector
A anti-spy or bug detector circuit is a device that detects hidden wireless electronic devices such as wireless microphones, spy cameras, Wi-Fi devices, GPS trackers or any gadget that emits some kind of radio frequency (RF). The proposed design can be specifically used as: Overview Also called anti spy RF sniffer, these are usually used […]