PicoBorg Reverse and DiddyBorg

Hi

I would like to use an UltraBorg with the DiddyBorg. The DiddyBorg runs on (essentially) 12V, but (if I understand correctly) the BattBorg module provides a 5V supply for the Pi. The UltraBorg runs (I think) on 5V.

So my question is -- can the 5V output of the BattBorg operate the Pi, UltraBorg, and at least one servomotor at the same time? Or would I need to consider more elaborate supply arrangements?

I guess the issues are whether the BattBorg 5V can supply enough current, and whether the servos or other stuff in the UltraBorg would pollute the Pi 5V supply.

Hi PiBorg
I just thought I would let you know how things are going, and to thank you.

I have now all but completed the build on the DiddyBorg, and all appears to be fine.

The first thank you is for your patience with me and my possibly stupid questions when I was researching what product to buy. You have answered all my questions and offered helpful advice and even alternatives.

Hi

Do you have a rough estimate of the amount of additional weight that can be added to the DiddyBorg platform, assuming that I don't want to run the motors above their rated voltage or current? I'm wondering in particular whether it could carry a modest sealed lead-acid battery or something of that nature.

Best wishes
Kevin

Hi

I note that the DiddyBorg takes 10 x 1.5V cells, but the rated motor voltage is 6V.

How are these cells wired up? Are they just in series to give 15V? If so, what do the extra 15-6=9 volts do? Is there something else in the DIddyBorg setup that needs > 6V? I note that the battery pack has a 9v-style connector, and is described as such in your documentation, but is that just for assembly convenience, or does this battery pack actually produce 9V somehow?

Hi

I'm trying to work out whether the PB Reverse, and platforms that employ it, are suitable for my project.

My understanding is that multiple i2c devices can be connected in parallel to the same GPIO pins, but there should only be one pull-up resistor to +3.3V. I understand that there is a little flexibility in what value of pull-up to use, but values of 3k3 to 10k seem to be common.

So -- does the PB Reverse have internal pull-up resistors? If so, what values are they? Can they be removed if necessary?

Best wishes
Kevin

Hi guys :) I'm planning to order a PicoBorg Reverse and one BattBorg for my project with my raspberry pi 2. I was reading the documentation of the two product but now i'm a bit confused regarding the connection between them. My project consist in rasperry pi 2 + piCamera and wifi usb stick to control a robot frame with 4 dc motor 6 V.

Hi

Are there any decent examples of controlling the PicoBorg Reverse (or platforms that use it) from C code? I can find Python examples, but I have 25 years´ C development experience, and I don't want to work in Python.

Best wishes
Kevin

Hi PiBorg

I am just at the final part of the build.

I have a query as I recalled the concerns re the reverse board and battery polarity.

I was checking using the build instructions and also the wiring diagram on the site.

There appears to be a difference between the 2 of them, showing the positive and negative terminals swapped depending which of the instructions you look at.

Can you confirm which is the correct one, I don't want to damage the board before I start, or potentially damage the Pi

Cheers

Chris

Hi !

Need some help with my project.
I like to run the Diddiborg with Ultraborg over Web UI. I'm using the code I found on this Forum. https://www.piborg.org/node/1846

Two HC-SR04 are in the front of the Diddiborg. I get correct readings in the Web UI.
But when I try to use "Semi" or "Auto-mode" there is no reaction.

Hi there!

I folowed the instructions and had no problems until I got to this part: