SPI connection to RAMPs 1.4 connected to Arduino Mega 2560

Project Discussion
1

Hello, we want to connect OpenMV to arduino using RAMPs 1.4. We tried connecting via UART comms and now we want to try SPI. Unforunately, no module named ‘pyb’ was shown. Is there other way for it to be connected? Thanks

3

Hello. We’ve now connected the OpenMV to the RAMPs 1. And with the mock coordinates or pre-coordinates, the Arduino Serial Monitor can read the informations sent by the OpenMV. However, whenever we put the real-time object detection code, arduino can’t receive the coordinates bding transferred by OpenMV. What adjustments we need to do? Thank you

4

Hi Hourf,

So, the RAMPs 1.4 isn’t our product, I can provide help support on how to make the UART work for our products. However… if you search the forums and check examples this has been covered quite a bit. Doing a Google search would have brought up plenty of forum posts about how to make this work.

As for the Arduino receiving this information. You need to post some details. Like the code, the electrical connections, and what type of Arduino. Note that the Arduino Uno has only one serial port so you cannot use it’s UART to talk to other boards.

5

Hi, Kwagyeman. We can now send informations from OpenMV to Arduino now. Thank you and for this forum.