Resolved by Dunning-Kruger!
I recently purchased a EZ4 board and I was anxious to use it. I went through two cables (mini din to molex) both of them traced correctly but yet I got nothing when I went into ARC.
The camera functioned (although it appears to only take up half the image window), I could connect to the web server no problem, but not the Roomba (although it acted like it wanted to connect).
In your pin out you have two pins being used one is ground and one is sending 5 volts (pin 3) to the create. Which confuses me because the directions make note to measure the voltage coming from the cable however I believe pin 3 SENDS to the Roomba not receives, am I misunderstanding?
My last attempt I took a PS2 cable put a meter lead on the pins you mentioned and then on the bare wire, until I had a complete connection. I attached those two to a molex connector with servo wire double checked the connections and still nada.
Help? stress tired
Thanks for the the project. That did not work. Once I send the init command it locks up the EZ-B. The only option was to reboot from that point on. I even tried sending the command without the Roomba plugged in to the D5 port and same result. Certainly sending a command to an empty port should not lock up the EZ-B? Is that normal?
I've run the diagnostic test and they seem to work (of course I have no devices plugged in). Audio feature of the box work.
The EZ-B is brand new. I'm wondering if I just have a bad one?
It works, what can I say.... other people are using it too... check your mini dim and wiring. .... ?
@Richard R do you have any I2C code in your project? I wondering if you had some RGBLED eyes or something in your project that @todd85 doesn't have. I guess I could always load the project.....
Hey @Jeremie.... nope, no I2c.... just basic uart commands to the Roomba .....
Richard's project seems straight forward, the ez-b shouldn't lock up unless @todd85 is using an I2C control without an I2C device. I think I may have to dust off my Roombas again and start fiddling with them again. I might be able to work with DJ to make some changes and upgrades to the Roomba control and possibly move it from D0 to a full hardware uart.
@Jeremie This does work. ... i promise you that... if you want me to demo it on the 13th(May).... bring your Roomba to work that day.....
Richard, will you get cracking on that Farscape DRD shell for Roomba?
@Zap I would love too... but alas i couldn't design my way out of a paper bag. ... I would love one of those farscape DRD shells too....