Ladvien's Lab

Originally posted on www.letsmakerobots.com

Kobold Files

Awhile back Sparkfun posted a new product, their MiniMoto breakout board. It breaks out the DRV8830 IC, which is a serially controlled (I2C) H-Bridge. I thought the chip was nifty. A few problems though,

1. Sparkfun's breakout was 25x25mm for one bridge. If I added another and then an Arduino Pro Mini it'd lose smallness.
2. It's $9.95
3. It's not on a purple board :)

So, I set out to make a robot controller with it that was smaller than a Sparkfun breakout. What I ended up with is a little bitch I refer ...

This is a continuation of my Robot Metallurgy 101 -- AVR Lesson Journal

• USART_1634 Code Github

UPDATE: Now with UART(ish)! (3/2/2014)

1. Robot Metallurgy 101: PWM
2. Robot Metallurgy 101: UART

I thought I would journal my work as I begin to venture from the comfortable playground of Arduino C and IDE.

I've tried a few other IDEs and C++ to work with different chips. But each time I realize I don't know enough about C/C++, tool-chains, and workspaces to make a robot with them.

Bdk6 gave me an LCP1114 and I was able to get a blink program ...

Originally posted on www.letsmakerobots.com

ATtiny Bitsy Spider

UPDATE: Added BOM corrections. (Sorry for floating.)

Ok. Here's a finished board I've been working on for a bit.

In essence, it is a BLE node board. It combines an HM-10 board with an ATtiny 85. This board builds off:

1. Bluetooth 4.0 (HM-10)
2. ATtiny 85

The idea of the Bitsy Spider board is diminutive controller node. I wanted it to be cheap and versatile enough to use as a node, but I think the final price is around $11 each.

Here's the ole GitHub:

• ATtiny Bitsy Spider (v.02)

The ...