Electric longboard bluetooth controller (handy)

As said before, the controller will feature an internal battery charger. Today I decided to use the MCP73831, so I rapidly drew a schematic (to be honest, I just copied the typical application from the datasheet) and carved it on the CNC.

Again, a wofis (worked on first shot).

It's made with tht components, but on the final board will be smd, which means ridiculously small.

Love it when things just work

Easier to solder than I thought

The LED turns on when charging, off when battery full or disconnected.

Really happy with the result, totally recommend the device. I will not upload this schematic because it's not strictly part of the controller, but something very similar will appear on the final version :)

Still, you can get the schematic for this standalone version at GitHub/elmameto/chargy

This morning I've been working on a receiver board. This is the first prototype so, unlike the transmitter, it's meant to work at 5V. This way you can use your onboard BEC without any other electronics.

The board features:

• Programming header
• AT-MODE "switch"
• ESC connector
• Header for when the lights will be ready
• Another generic header, for whatever

Remember that this is a (working) prototype. The final board will be much smaller and thinner, as everything will be SMD.

You can find the board design on GitHub

Just finished carving the board. Went like a charm. 10% of the time carving, 25% drilling, 65% milling it out.

The board mounts an HC-06 BT module. You can also use an HC-05, but you have to configure it first, since I forgot the prepare the board for the AT-MODE pin...

Way better than a perf board...

The real surprise? It worked first shot.

For real.

I mean, I plugged it in and it worked. Is that even legal??

Added a primitive 3d printable enclosure for the controller. You can grab it on GitHub. The hole on the top part is thought to be used to place a photo resistor, as a presence sensor.

Any thoughts on that?

I don't really like the idea to keep a button constantly pressed...

More photos later ;)