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Arduino

Arduino

Arduino is an open-source electronics platform based on easy-to-use hardware and software. It is widely used in amateur radio projects for automation, custom hardware interfaces, and experimenting with electronics. Its versatility, low cost, and community support make it ideal for creating practical ham radio gadgets.

General Ham Resources

These projects show how Arduino can provide custom, affordable solutions to improve amateur radio capabilities and make operating more convenient.

Arduino Examples

  1. Antenna Rotator Controller: Arduino can control the motors of an antenna rotator, allowing precise positioning of directional antennas. Arduino Uno and motor driver boards are often used for such applications.

  2. Morse Code Keyer: Build an automatic Morse code keyer using an Arduino to key a transmitter with predefined messages or to practice Morse. A basic Arduino Nano can be used for this project.

  3. SWR Meter: An Arduino can be used to build an SWR meter, which measures the standing wave ratio to optimize antenna matching. Use an Arduino Pro Mini paired with a directional coupler and analog sensors.

  4. Digital Interface for Radios: Create a digital interface to control your radio’s frequency or modes via CAT (Computer Aided Transceiver). An Arduino Mega 2560 can interface with radios supporting CAT control.

  5. Automatic Antenna Tuner: Arduino can be programmed to switch inductor and capacitor combinations for automatic antenna tuning. This is ideal for field operation and can be built using an Arduino Nano and relays.

  6. QRP Transmitter Control: Arduino can control a low-power (QRP) transmitter, setting up timing and sequencing for CW transmission. This can be done using an Arduino Uno and supporting relay components.

Here are some Arduino kit resources:

Local Club Activities

Many local RARS hams are very familiar with Arduino interfaces. 

Look on our Discord server #diy-projects channel for more info and to ask questions.