SuperDroid

We wouldn’t recommend charging with a power supply but it should kind of work with lead acid batteries. Follow the instructions here: https://batteryuniversity.com/learn/article/charging_with_a_power_supply. Maybe make this just a temporary solution until you get a 12V smart charger.

With a power supply you don’t want to leave it connected for…[Read more]

Hi,

– The image on page 5 in this doc: https://www.superdroidrobots.com/Manuals/TP-094-004%20Mecanum%20IG32%20DM%20Manual.pdf appears to have a power distribution bus. I don’t see anything like this. I suppose i need something similar.

> No that terminal block is not included in the kit but it probably should be. You may be able to find one at…[Read more]

Each pull-up board will only work for one encoder, so you are correct that you would need 4 pull-up boards for 4 encoders.

However, if you are trying to read the encoder values from an Arduino you should instead use our Encoder Buffer Board. An Arduino can communicate with these boards via a SPI interface. You can buy either 2 dual channel boards…[Read more]

Sorry, we do not have schematics for every possible configuration of our robots. The RoboClaw is wired the same as the RoboteQ or Sabertooth. Hook up power and the two motors. For the control refer to the manual of the RoboClaw, which can be found linked on the item page.

You actually just need one per encoder. Both A and B can plug into one board.

Yes. Connecting the encoders to the MDC2460 will be easier and give you access to more features in Roborun+.

Also if you’re using our motors, you will need the pull ups.

I was talking about using the MDC2460 as an encoder buffer instead of the dual encoder buffer board. You should have 5V, GND, A, and B coming from each encoder. The A and B need to output 0-5V pulses. If it’s 0-3.3V, you can use a simple pull up resistor circuit like this:…[Read more]

Hey Tyagi,

A couple things here:

1. The dual encoder buffer board has two buffer chips that communicate via SPI (MOSI, MISO, and SCK). The S1 and S2 pins are used to select which buffer chip to communicate with. Refer to our sample code on GitHub for an example:…[Read more]

Not really a sensor question… However, a 500lb lawnmower is going to take some very large motors. Its not a simple calculation. Speed, incline, terrain, all come into play. For help sizing motor, see our support page. https://www.superdroidrobots.com/shop/custom.aspx/how-to-build-a-robot/70/#motors

Hey Tyagi,

See the attached image for the cable pinouts on the RS232 end. The GPS will need to grab power from a 5V pin on the Jetson or another 5V bus.

Hi Andre,

Nothing about this seems off. I doubt you’re going to have any noise issues with the IG32 motors.

No problem. That IMU is actually I2C and should be a direct connection to the Jetson’s I2C bus.

You would actually need the DB9 variant (https://www.superdroidrobots.com/shop/item.aspx/db9-solder-cup-connector/1836/).

If you would rather use USB, we have a RS232 to USB cable as well (https://www.superdroidrobots.com/shop/item.aspx/usb-to-serial-rs232-adapter-ftdi-chipset-cable/1330/). Note that you’ll need the DB9 female solder cup connector here.

I’m not familiar with the first converter and the second link is actually a 3.3V TTL to USB cable. I was referring to something like this: https://www.superdroidrobots.com/shop/item.aspx/rs232-3-5v-ttl-type-2-serial-converter-cable/337/

It can’t be a direct connection for the communication. You will need to convert RS232 to 3.3V TTL. You can find some of our converters/adapters on our website.

Hey Tyagi,

Glad to hear you were able to get the RoboteQ interface working. The Garmin 18x is powered with 5V and pulls around 100mA. For communication, you will need to convert the RS232 to the Jetson’s TTL serial interface. See the Garmin 18x datasheet for more info.

RTS/CTS are not needed here. All you need is a 4.7K Ohm resistor and two shottky diodes as shown in the manual (page 152). This circuit is converting the +/-10V RS232 from the RoboteQ to 0-3.3V TTL that the Jetson operates on.

Refer to page 153 in the user manual for how to configure inverted RS232 on the RoboteQ. It has to be done through a…[Read more]