i am building a speedometer which sits on a helmet and indicates speed using 10segment bar led
my issue is how do i use the gps speed function in the gps stream widget(basically using my phone as a gps module) and show the speed as increasing bars on the led segments
i am using a nodemcu (esp12-e module)
and 10segment led bars
using and android phone(android 11) and blynk server
the leds are in place and tested i am just on the code aspect.
Sounds like a fun project! One thing I’d suggest is testing the GPS module separately before wiring it into the full Blynk setup. It makes it much easier to verify update rate, accuracy, and any filtering you might need. Also keep in mind that GPS speed tends to be more stable once you’re moving, but it can jump around a bit at very low speeds.
For example-
I built a browser-based GPS speedometer tool called Pocket Speedometer (https://pocketspeedometer.com/). I found it useful for comparing the readings from my GPS module with a phone’s GPS while tuning the project. It might be a handy reference during testing.