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 […]

Seeed Hercules Robot – First Impressions

Seeed Hercules Robot

We purchased the Seeed Studios Skeleton Bot – 4WD Hercules Mobile Robotic Platform from robotshop.com. Robotshop’s price is the same but they ship from the US. This is initially for my son’s science project, but we figure we can do all kinds of robot projects on this platform.

The unit was […]