…fortunately the worst things I started to imagine were false. Mio came back home. We conclude she might be being locked by mistake in a barn from the neighborhood. That’s where started the idea of a small RF beacon for Mio. It should to be very small, at least a month of battery life, and can enable a kind of search with a receiver.
Some tests were done with three different RF modules:
3D cases were printed for each module to use with a 3V coin cell. Studies started with the ST module:
I’m not sure about the reception range, is it enough to locate the beacon by walking around in the village? That’s why I should continue to study the other solutions. For example, I just saw it exists with a 433MHz ceramic antenna as well. Maybe it enables the use of the LoRa module at low power. They are still interesting as their modulation scheme makes the reception very sensitive.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.