Reflow Toaster Oven Insulation Notes

click to see bigger images

I decided to make an SMD reflow oven from a toaster oven I found abandoned in my garage. There are many excellent build guides already on the web, so I’m not going to replicate them here, I’ll include links below. I did see some improvements I thought I could […]

SonarI2C – multiple HC-SR04 sensors on Arduino I2C

HC-SR04 octopus

HC-SR04 octopus on I2C plus one pin

I recently had my first encounter with ultrasonic distance sensors – specifically the Parallax Ping))) – while helping the Cresta Blanca Girl Scouts robotics club prep for the local RoboGames Fire Fighting challenge. This got me all interested in doing robot things again so I’ve dusted off […]

Splitting Jumper Wires for Arduino

A while ago I stocked up on jumper wires from Sparkfun and recently found while connecting an Arduino clone to a Raspberry Pi that the single straight header on both ends was not what was needed. Unlike the male breakaway headers, these female JST RE wire headers do not split up.

To solve this you […]

Raspberry Pi Arduino IDE via GPIO

Raspberry Pi GPIO to Arduino UNO without USB

We want to control and program our Seeed Robot directly from a Raspberry Pi. The Seeed Hercules controller, which has an embedded Arduino compatible controller, does not have a built-in USB port. Therefore we want to bypass USB and talk serial TTL directly between the pins. […]

Seeed Hercules Motor Controller – First Impressions

Seeed Hercules Controller

The Seeed Studios Hercules Dual 15A 6-20V Motor Controller came with the Hercules Robot from Robotshop and seems to be a very well designed and made piece of gear. Robotshop do not list the card as a separate product, but it is listed at the SeeedStudio site. It provides all the […]