DAVEga: Battery monitor, odometer, speedometer

Do Digikey or Aliied Electronics carry them?

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What amount of capacitance are you wanting in the cap? I see 10uF ones here, or 22uF ones here. Or on mouser.com they show 77 axial caps with 5mm diameter.

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The mouser filters are great. I found this guy there, which is a perfect fit, if still a little pricey.

Skimmed through the last month’s worth of comments and couldn’t find an answer, so I’m wondering if there are still kits or preassembled for sale?

Currently, I don’t think so. It’s still going through the beta testing phase. Though I’m sure if you really wanted to, someone might have the pieces needed.

So I’ve been thinking about how to do the second batch. I’m already preparing for it. I’m awaiting 50 new MCUs.

It seems that many would prefer an assembled kit, but then again this is an DIY forum and I’m sure many will prefer to assemble the Dave on their own as well. I don’t want to offer multiple options since dealing with orders is already time consuming even if I make it as simple as possible. I would like to have one standard package with one price for everyone, so that I can prepare sealed envelopes to be shipped and whenever someone orders one, I just stamp on their address and take it to the post office. Also, though the untracked shipping worked well so far, many packages got delayed and people got nervous about not knowing where their package is.

With this in mind, here’s how I would like to go about the batch 2. Each package will have two Daves, one assembled and one kit. That way, everyone will get at least one functional and everyone will have a chance to build another one, either to keep as a spare or to give to a friend. Having the assembled one on hand will then provide a template and should make the assembly easier. The price will be higher, which will the $5 for tracked shipping not sound so ridiculous compared to the value of the package.

I plan to set the price at $25. This includes $5 shipping, accounts for PayPal fees and exchange rate losses (since apparently not everyone wants/manages to pay as F&F and sometimes the money paid gets converted to CZK for no obvious reasons), the costs of the parts (I’ll be adding electrolytic caps to the next generation to protect against volatile power supply that @lrdesigns has experienced, so that’s minor extra cost) and if I’m lucky there will be $1-2 left for myself, so that I can tell my wife I’m actually making money on this! :laughing:

Also, @Mich21050 volunteered to help with completing, assembling, and distributing kits for no charge, which I really appreciate, but at the same time I think it would be nice to leave some padding in the price for him as tips. He’s a young fella and I’m sure he’ll make good use of a few extra bucks.

With the displays, that will be $35 for 2 Daves, or $17.5 for one, which is quite a bit more than the $10 that I promised, but hopefully still affordable for everyone who wants one… eh, I mean, two. :smiley:

I would like to get your thoughts on this, guys.

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$35 for two of these is still amazingly low for what it is. The only other option for something like this is the photon control panel, which does have more features, but that is $115.

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Sounds good to me.

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That is still incredibly cheap for a 2 pack. The one built and one kit is a good idea.

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Fantastic pricing. These will be on every new build for sure.

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Definitely a must buy

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I think the pricing is amazing and I’d purchase a couple.

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Great idea including a complete and a kit! Building with a template would be very helpful for me.

Thank you for developing this awesome thing :smiley:

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It’s really not much more considering they get an already assembled unit. I can almost guarantee people would pay a bit more for something like this. I like your style though dude. I’m super impressed at what you’ve done so far and I can’t imagine not having my Dave on my board.

P.S- I’ll buy a two pack whenever you have them. Maybe a couple two packs. I have plans for a couple other boards this winter. This option will make it way easier. Thanks again for everything you’ve done so far!

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That looks really great man. Mind showing a pic of the mounting/routing underneath if/when it’s convenient?

Even $20 is crazy cheap for a fully assembled one, that includes shipping and paypal fees? Get outta here.

After a few rides its really fun / nice but @janpom I am REALLY excited to have min/max information on the second or third screen. Any chance we can get that before xmas? :christmas_tree:

I really would like to know min / max amps (battery), min voltage (sag) and max speed.

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I finally got off my ass and got mine finished and installed. I still need to make some adjustments to my model, I need better soacing for the button holes and an imset on the inside for the micro momentary buttons.

This thing is frikkin awesome.

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Yep. I’ll grab some shots tomorrow for you.

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Do you have a button to suggest that fits your cutouts? All I’ve got are square buttons, but can’t seem to locate circular ones that fit your design

My buttons are square too, just hot glue them in place, print a small round plug (slightly smaller than the slot) and glue it to the button.

I’ll update my model tomorrow or Tuesday with better soacing and button plugs.

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