Let's Make Robots!


This is the tank. One day, perhaps it'll earn itself a real name. Being my first robot, it is of course a skid-steering obstacle avoider. Since I already had an … Read more

Question about SN754410 and current capability

As the SN754410 H-bridge driver is rated at 1A, am I correct in thinking that it can handle 1A at the max voltage of 36V and therefor will be able to handle 3A @ 12V and 6A @ 6V ?

Second set of eye's on a sn754410 driver setup

wired up


Note green LED(yes it's set up in the correct orientation and even when I hook up a vmeter I don't see a voltage) is not lit up.(red is power indicator) I feel like amature hour here with this simple circuit yet can't seem to get it to work. Tried 2 different chips. Recommendations are welcome...I only spent this morning looking at it....

The Robot Builder's R-duino

June 24th, 2011.

I've been asked if I can make a board similar with the Robot Builder's Shield that also has the microcontroller on board and is compatible with regular Arduino shields. Not an easy task to do if I want to keep it with through hole components, but it's a challenge.

So I have designed a first prototype of the Robot Builder's Arduino R-duino. Features:

Trouble connecting Vcc2 to SN754410

I've tried looking around a bit and expect this to be a fairly basic question, but nonetheless I still can't get it to work. Basically I have an arduino connected to a SN754410 motor driver powering a lego motor. This all works fine until I try to use a second power supply (9V battery in this case) instead of the arduino's 5V output. Here's the current setup:


SN754410 Test LayoutNote that the arduino is running off of USB power.

Explore an environment, create maps, take pictures, never get stuck.
Using a
Tesla will be a multifunctional robot that will have priority tasks. Unlike other robots that will just "do" things, this robot will have tasks only if certain … Read more
Navigate around via Infrared Rangers
Using a
1-1-09 Roger has been working like this for a while, but I never went around to make a video of it. Here it is. I added some white LED's as head lamps and that is … Read more