Wow, what a great presentation! You have done some wonderful work here. It's a pleasure to see and watch. So much to be excited about.

I knew you were going to try the Rock Pi X and grateful you placed your experience with it here. With everything you are demanding from the computer I can see how you would need a more powerful platform. I'm currently using the Rock Pi X in my robot but haven't gotten to the point in my rebuild/upgrades where I can really load it down to see how it handles my scripts flying at it. The first thing I found that I dislikes was it's very long bootup time into windows and then into ARC. It takes at least 2.25 minutes for the robot to start running the INT script. It looks like your startup time using the Chuwi Larkbox is much faster. Could you share how long it takes from power on to when ARC can start running scripts?

You state you can only start up the Chuwi Larkbox by pressing it's power button. I had the same issue with the Rock Pi X. I overcame this issue by using time delay relays wired to the Rock Pi X's power button circuit. Is there a way to replace that power button on the Chuwi Larkbox with timer relays?

Hello Dave,

thank you, yes I invested a lot of time.

I have created a video for you, switch it on and start EZB immediately, via autostart (1:10 minutes):

The Rock Pi starts as soon as it gets power, unfortunately the Chuwi doesn't do that. Yes there is a problem with turning on the Chuwi but there is no solution.

I disassembled it to see if I could solder a cable directly to the switch. But then I had the idea to attach it to the outside because I had no more space inside the Rover. And then I had the idea to create a Docking Station so I can quickly switch it for other projects. Of course it would be possible to solder a cable directly to the switch, it's just very, very small.

The internet is full of questions on this topic, but there are no solutions, and the manufacturer is not responding either.

Here's another creative idea :-)

https://forum.chuwi.com/t/larkbox-automatic-boot-on-power/16585/11

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Thanks for taking the time to show this and answer my questions. Very interesting.

Your boot up to run time is about half of what my Rock Pi does.

I don't understand your creative idea. Sorry. Are you just plugging it in? EDIT: Oh, I see. The servo rotated and turns it on . LOL. Got it.

the video with the servo as a switch is not mine, I found it on the internet...

I've had enough for today, but it's already working quite well...

:- )

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It's super great seeing your robot! This is wonderful. I'll pass a note to the web dev team about the robot profile. I'll make sure your credit is applied to the account. I'm a huge fan of videos so it's great that you posted a number of them - thanks!

Wait, what are analog ezb ports? I thought all the ports were digital

Wait, i remembered, but what were they for? And why didnt many of the ezb kits use them?

Ohhh, its an analog to digital converter, that makes a bit more sense.

Hi Winterrrrrrrrrr,

the EZB 4 has also analog Ports:

The ADC Analog Ports are labelled A0 through A7, and run down the right side. https://www.ez-robot.com/learn-robotics-ezb-smart-robot-controller-overview.html

@ DJ thanks ....

Hi Winterrrrrrrrrr, To add to what you found out and what UwrP said;

The analog ports signal pin reads voltage. It can be used to watch voltage changes in devices and switches. Personally send a voltage feed from a power pin on the ADC port (regulated by the EZB to 3.3 volts) through switches (open or closed) and back to a signal ADC pin . When I activate the switch, the signal pin reads the voltage change. I have scripts that watch that ADC port and will run when they see the change.

The only problem I've had was when a switch is normally open, there is a voltage build up (static) and the reading will float high. To solve this I install a10k Pull Down resistor between the signal pin and the ground pin near the ADC port I'm using.

Here's a link to the very hard to find EZB-4 datasheet located deep in the EZ Robot website. I don't know why but it's always been hard for me to find. It has lots of very good info that is good to know about the EZB: EZB - 4 Datasheet on EZ Robot website

Very cool stuff. Have fun!!

oh yes, I also had to search for a long time to get all the information together. On the one hand i use the analog ports to monitor my 18V battery, on the other hand for the buttons.

These two threads helped me a lot:

voltage divider: https://synthiam.com/Community/Questions/Automatic-Battery-Charger-Docking-6103/comments Post #95

button: https://synthiam.com/Community/Questions/Pull-Down-Resistor-3472

Dave, I didn't know that link either, thank you very much, very helpful ...

@dave, you can also view the datasheet and stuff on the Hardware page on Synthiam. All the supported hardware is listed nicely on the left menu in the support section. Here's a direct link: https://synthiam.com/Support/Hardware/EZ-B-v4

@DJ, Thanks. Your site is set up a lot better to find stuff then EZ Robot's.