As promised in another thread, I’d thought I’d say a few words about the Flipsky VX3 remote.
I had my first session with the VX3 on Sunday and it was a disappointment, mainly for two reasons, the reception and the trigger.
From before, I’ve been forced to put the antenna outside my carbon box, since the Maytech setup struggles to penetrate the carbon. This setup has been working very well so far, not too many unwanted interruptions.
I reused the antenna for the VX3 setup and it works in free sight but when something blocks the way, like me laying on the board or my foot standing on the antenna, instant unwanted swim in the water. I am not 100% sure, but I think they are booth using the 2.4ghz frequency, does anyone know? One other thing I’ll try is to disolder the 0R resistor to the built in antenna, I think I’ve read somewhere that parallel antennas are not optimal, can anyone back that?
Then there is the trigger. At first, when I calibrated the trigger I didn’t notice it but eventually when I started to investigate why the remote is so imprecise, I found that the trigger has only 45 individual steps, 136 to 181 is shown in the calibration setting for acceleration. On top of that, it looks like they have filtered the first and the last reading so in reality there are only 43 readings. My output is as follows.
0,4,6,8,10,13,15,17,19,21,24,26,28,30,32,35,37,39,41,44,46,48,50,52,55,57,59,61,63,65,68,70,72,75,76,79,81,83,86,88,90,92,94,100
In reality this means (for my setup), at 21% throttle, I can ride at 21-22 km/h and the next step is 24% giving me 25-26 km/h, nothing in between. You can clearly feel you get an abrupt positive or negative acceleration if you’re not able to keep the throttle in the same position. It was quite hard to get used to that.
One more thing, since the VX3 is using the COMM_SET_CHUCK_DATA command to pass the tigger data to the VESC there is one setting, Input Deadband, that was set to 15% in VESC tool, meaning the first 15% of the trigger values was filtered away, leaving me with just 36 readings. I’ll try to alter the deadband value and get back on that too.
The travel distance on the trigger is not good either, only 15mm, while Maytech has 20mm and Hiorth/Felix/Samisin has 30mm.
Missing to be able to see RPM, actual duty cycle, motor current on the display, not perhaps together with the other data but as perhaps another view.
There are a few positive things as well. The display works very well in sunlight, the remote feels very solid and so far, there are no signs of water intrusion.