by Meltdown » Fri May 19, 2006 9:53 pm
by Meltdown
Fri May 19, 2006 9:53 pm
For clarity:
I have Bluetooth build in in the laptop i use.
But you can use every off he shelve BT usb plug if you don't have one build in.
On the KHR-1 side i use a Bluetooth serial rs232 adaptor.
On every BT serial rs232 adaptor i've seen (and mentioned in the list above)
there are several ways to power them.
Usually pin 9 of the rs232 plug can be used to feed +3.3v to 9v depending on manufacturer.
Pin 5 for Ground (-).
In my case i needed 5V.
I took the pins of the (in my case unused) low-speed serial I/O of the rcb-1 to power the BT module.
It turned out that this low-speed serial I/O has 5v output instead of the overall 6v you find on the rcb-1.
Perfect for my BT serial adaptor.
I took the BT serial adaptor out of it's casing and put the module
where normally the battery sits in the chest of KHR-1.
It's totally invisible now
On a side note:
I power my robot with Lipo cells which put out 7.4v/3600mha.
Too much voltage for the rcb-1 and servos.
So i designed a mini converter/pcb which transforms 7.4v into 5.6v with 7.5amps capacity.
My KHR-1 gets it's power from two 7.4v Lipo cells (one in each foot) build into the feet of the robot.
One cell is used at a time.
When one cell is drained i can switch to the other cell.
The mini pcb power converter is also build into the feet.
Now you have to be very careful with Lipo cells.
These cells must NOT be drained under 6v (or 3v per cell).
That's why i added a pcb which lights a ultra bright led when reaching 6v.
All build into the feet.
And while we are at it
I also developed a mini pcb which is put onto the servo pins of the 2 RK2 gyros i have.
These pcb's can bypass the gyro completely though a switch while at the
same time the servos are routed directly to rcb-1.
It's as if the gyros aren't there anymore.
Flip the switch and the gyros are back again for action.
The reason is that i don't have to unplug the gyros anymore when i want to use teaching mode on those channels.
Normally you have to unplug them when you want to use teaching mode
which is a pain in the ..s.
And these are just a few mods of the countless improvements i made to the KHR-1.
It never ends.
For clarity:
I have Bluetooth build in in the laptop i use.
But you can use every off he shelve BT usb plug if you don't have one build in.
On the KHR-1 side i use a Bluetooth serial rs232 adaptor.
On every BT serial rs232 adaptor i've seen (and mentioned in the list above)
there are several ways to power them.
Usually pin 9 of the rs232 plug can be used to feed +3.3v to 9v depending on manufacturer.
Pin 5 for Ground (-).
In my case i needed 5V.
I took the pins of the (in my case unused) low-speed serial I/O of the rcb-1 to power the BT module.
It turned out that this low-speed serial I/O has 5v output instead of the overall 6v you find on the rcb-1.
Perfect for my BT serial adaptor.
I took the BT serial adaptor out of it's casing and put the module
where normally the battery sits in the chest of KHR-1.
It's totally invisible now
On a side note:
I power my robot with Lipo cells which put out 7.4v/3600mha.
Too much voltage for the rcb-1 and servos.
So i designed a mini converter/pcb which transforms 7.4v into 5.6v with 7.5amps capacity.
My KHR-1 gets it's power from two 7.4v Lipo cells (one in each foot) build into the feet of the robot.
One cell is used at a time.
When one cell is drained i can switch to the other cell.
The mini pcb power converter is also build into the feet.
Now you have to be very careful with Lipo cells.
These cells must NOT be drained under 6v (or 3v per cell).
That's why i added a pcb which lights a ultra bright led when reaching 6v.
All build into the feet.
And while we are at it
I also developed a mini pcb which is put onto the servo pins of the 2 RK2 gyros i have.
These pcb's can bypass the gyro completely though a switch while at the
same time the servos are routed directly to rcb-1.
It's as if the gyros aren't there anymore.
Flip the switch and the gyros are back again for action.
The reason is that i don't have to unplug the gyros anymore when i want to use teaching mode on those channels.
Normally you have to unplug them when you want to use teaching mode
which is a pain in the ..s.
And these are just a few mods of the countless improvements i made to the KHR-1.
It never ends.