Telemetry Thread
 

Calling all telemetry users!

I'm using various types of telemetry, on the ESC and now I have an Arduino with accelerometer shield hoping to make it write the data on a SD card or send it wirelessly. As always I will share my work with you.

I recall user Roelof made something similar but not with an Arduino.

Will add pics afterwards.


The materials used on this project:
- Arduino Nano for it's size;
- GY-521 accelerometer;
- Male to female jumper wire;
- Included code for both the data-logging and I2C (had to download I2Cdev for the code included with the shield to work), the included examples have both features separated but as a former Programming student I could add data-logging to the sensor read program.

The Nano is powered by the Rx battery and outputs 3.3v for the shield which uses I2C bus, seemed better than the other code example but is way more complicated, the pros outweigh any disadvantage. Now got to figure how to wire the SD card reader and design a box to fit it all in.

Did you get this to work? Studying up on Arduino, to have real time telemetry to a laptop to see motor rpm and the traction circle (g forces).

no Arduino but a datalogger:
https://www.rctech.net/forum/nitro-r...mes-alive.html

Yes but lost the code, I now use an app called traction that does the same plus graphs. Only need a cheap smartphone.

Do you mean you replaced the Arduino and put a smartphone on the car running a g-force traction app? Did you find that the g-force sensors on the smartphone not high enough for rc cars?

Thanks, have been studying your projects for a long time. Would you know how traxxas has such a nice telemetry dashboard to a smartphone while the telemetry systems of Sanwa, Futaba all seem primitive? :D

Sanwa/Futaba heavily target the racing market where telemetry is mostly outlawed. Traxxas caters to different niches.

Yes, replaced the Arduino with a smartphone. At this point only haven't found the limit of the g sensor as the phone I'm using has a 3.3G limit.

Telemetry is nice to have in a most impressive way to impress your friends or get real data out of it. Traxxas is nice but a mandatory Apple device is crazy....And running a 100mph XO-1 there is no way you look on the display to see if it is running that 100mph or else you can peal your car from a tree.

For racers only a battery voltage and motor/engine temperature is important but no way to check while racing, thats why there is no need to have a huge dashboard or telemetry at all. I must say the old Sprektrum systems with an handheld telemetry reciever was the best to give it to your pitman

Looking at telemetry for practise/tuning sessions, and take it off during racing. The dashboard would primarily be for me to watch/log and replay back data to the driver later on. Just like full scale racing.
Probably can do without telemetry, but need something to do to keep interest in rc racing :)

I do have the handheld spektrum telemetry with lap count and such. Sucks I can't seem to find a dsm with telemetry...