It NEEDS an accurate speed to guess distance better. SPEED over TIME = DISTANCE.
Design rated speed and display speed right there in programming. Set both to whatever the GPS says is ACTUAL speed on the flat ground in a straight line. Its still never going to be accurate. That depends on load and so on terrain. Even tyre pressures. Will read high or low depending on route or day. Because it doesent ever know the actual speed only the joystick position.
Ok - i raise the speed in the settings and test - if its closer to the correct distance - then i just play with the speed
i have to only set the Max display speed - leave the rated speed alone ?
i am curious for you to try it to see if its that much off also - not to confirm what you are saying
my other chair JS older style - small color screen JS rnet - was pretty much on the nose -
will try 10mph and see what that does -
expresso wrote:i have to only set the Max display speed - leave the rated speed alone ?
i am curious for you to try it to see if its that much off also - not to confirm what you are saying
my other chair JS older style - small color screen JS rnet - was pretty much on the nose -
next time i use it - i will see what the GPS tells me about the speed - and set it there - then test on a ride -
Burgerman wrote:Thats an encoder. They are designed for connection to 2 motors or two wheels to give the r-net system better data for wheel speed for increased control. Esp on weird setups like stered casters/front drive. The module is an encoder module. They can be very accurate if configured correctly. It might also allow a more accurate speedo. I am not sure thats the case though. The speedometer/miles may still work in the same way expressos does.
https://www.cw-industrialgroup.com/Prod ... der-Module
If it were down to me to design a wheelchair odometer I would rather not get involved with speed and time, it sounds far too complicated. I'd start with drive shaft rotations and move on to drive wheel diameter.
Burgerman wrote:Thats an encoder. They are designed for connection to 2 motors or two wheels to give the r-net system better data for wheel speed for increased control. Esp on weird setups like stered casters/front drive. The module is an encoder module. They can be very accurate if configured correctly. It might also allow a more accurate speedo. I am not sure thats the case though. The speedometer/miles may still work in the same way expressos does.
https://www.cw-industrialgroup.com/Prod ... der-Module
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