@r_hood, nan error is 'not a number' error. It sounds like something might be interfering with the I2C buss you have set up. Without visual or hands...

I'm using, and still learning KiCad. It has a steep learning curve, but does everything from circuit schematic to pcb layout. Hence why I did not re...

@yurkshirelad Run a web search for 'LT spice'. It should take you in the right direction.

@acode I was going to point you to the video regarding opto-couplers at this site, and could not find one. I agree they should be covered, but from a...

Everyone has been helpful and understanding here. Though I've only started posting recently, I've lurked for about a year. Although I'm only in my 6...

@sumanta One other option is to go 6 cell, with rechargeable. That would put you at 7.5 volts, resulting in less heat for the regulator to dissipate,...

@sumanta, Sid is correct. You're going to want to add a regulator to the setup. Simplest is probably the 7805, 5 volt regulator. You'll need to put...

@butch, I hope I'm not coming across as a jerk, as I don't mean too. It seems as though you have the solution if you start at the bottom of your last...

I have more questions than answers, sorry, but maybe it will get things moving. Is it possible you mean I2C rather than IC2? (I searched IC2 in case...

@dronebot-workshop Thank you

I'm still learning my way around here, and this seems to be the most recent maintenance thread. I just wanted to point out that in "Using LCD Display...

Perhaps a small robot or drone will catch her attention, and you can build on that. Good luck.

I agree with @sj_h1 and @Melbul on the kit recommendations. I have not worked with the esp32, but I have worked with the esp8266. (cheaper and slower ...

first time actually posting, hope I get it right. I just got done with the video and install process. Much Thanks! First point; If installing on ...