Hi I’d like to build a panoramic system for an raspberry cam.
In order to observ the ground, the system will be fix upside down on an aluminium structure.
This seems to me a good start :
But i can’t figured out which part exactly as to be mounted on this base…
You would mount the LSS Base rotate kit upside-down, which is OK, provided it’s not supporting a lot of weight. Are you looking to add a tilt servo? If you want to use a smart servo as well, this might help: SES-V2 - Pan & Tilt
Instead of attaching the bracket to the servo’s horn, you would attach it to the base rotate like this:
Thank you very much for this very complete and detailed answer!
Yes indeed I need a cervo tilt.
I don’t quite understand the difference between the two cervos?
Aren’t they the same?
Otherwise I understand the rest, except perhaps the use of clips?
Otherwise I’d just need the power supply unit to be far enough from the mechanism, I suppose that’s possible with an extension lead…
The whole thing will be connected to a raspberry pi.
There are three servos in the Lynxmotion Smart Servo lineup: HS1, ST1 and HT1. They have different max speed and torque but physically look the same. How far away will the power be?
The ST-1 is as the name implies “standard”. It’s really best to estimate the torque needed though: how much does the camera weigh, and how far away will its center of mass be from the tilt axis ?
The 422 from Hitec is a normal 180 degree RC servo motor, whereas the LSS is a smart, configurable servo (can rotate 360 degrees for example) which can also accept RC signals.
I was talking about difference between the servomotors HS-422 & LSS-ST1
So The two kits with servomotor HS-422 can’t move 360° ?
Sorry i miss skills, i will receive help a bit later on the project, buyt i have to chosse by my own the materials.
I do’t understand when you say that one is configurable and not the other.
I guess i can command the both with a python script for example?
So i suppose this others differences?
Q) I was talking about difference between the servomotors HS-422 & LSS-ST1
422:
0 to 180 degrees of rotation (-90 to + 90 if you prefer)
Normal RC signal
LSS ST-1
0 to 180 degrees, 0 to 360 degrees or multi-turn
Normal RC signal or daisy chained serial
Configurable parameters & more
Much higher torque than 422.
Q) So The two kits with servomotor HS-422 can’t move 360° ?
Correct.
Q) I don’t understand when you say that one is configurable and not the other.
The 422 is controlled by a PWM pulse which assigns the position - nothing more than that.
It’s not easy to write exactly what the LSS can do, so you can see the protocol page here:
Q) I guess i can command the both with a python script for example?
You would need intermediate electronics for either servo. The 422 needs an RC servo controller (for example the Lynxmotion SSC-32U), while the LSS needs a USB to serial adapter (we suggest the LSS Adapter).
So it is not appropriate to use the LSS for the base rotation, and the 422 for the others just because they don’t use the same intermediate electronics or ther is a way to use it together on the same construction ?
The choice really is yours. You can use an LSS for base rotation if you’d like (link above). The 422 operates using RC servo signals, and the LSS can also use RC servo signals, so they can both be used with an RC servo controller.
Yes, that will work. The LSS include an RC cable / adapter, but you won’t make use of the fourth wire (green) since the SSC-32U doesn’t have that feature - you’d need to use the button menu to convert to RC mode. If you don’t have a USB to serial adapter (like the LSS Adapter), you won’t be able to change all configurations of the LSS Servo.
There are three possible modes in RC, and the option to reverse direction. You can also update the LED color to your liking.
" If you don’t have a USB to serial adapter (like the LSS Adapter), you won’t be able to change all configurations of the LSS Servo."
You mean in the case i have to use a SSC-32U because i want to use 422 servmotor or is there a way to change that even with a SSC-32U adding something else?
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Is this the solution that offers the most versatility if I only take one LSS servo and two 422 for budgetary reasons? Or you can advice me another ?
…
If not, the other solution is 3 LSS motors and the LSS card.
Thanks again, I’ll stop asking and choose in the next few days.
If you plan to connect it to a Raspberry Pi, you’ll likely need to do some programming. If you plan to use RC servos, then yes, an SSC-32U is a good option.
You only need a USB to serial adapter if you want to configure the LSS. Do you know what you want to configure?
You are correct that the LSS is quite a bit more expensive than a normal RC servo, but it is a lot more powerful and versatile, so the decision is really up to you.
