Archive for 'AVR Sensors' Category
Adding Infrared Distance Sensors to an AVR Atmega32
After the test run on the actual race course, it was clear that GPS was not going to be accurate enough to keep the car out of the pond. I tried sonar, which is great for general obstacle avoidance because it will detect basically anything in a 45 degree cone, but it didn’t work well [...]
Adding an I2C Compass to the AVR Atmega32
The new 5hz gps module I added in the last post is working. Now, to tackle the biggest problem discovered during Deathpod3000’s maiden voyage, we need a way to get very fast heading updates during turns. While the faster refresh rate of the new gps will help, it is never going to give us accurate [...]
Adding a 3.3v GPS to a 5v AVR Atmega32
So the maiden voyage of Deathpod3000 was a disaster. The problems seemed to be twofold. One, gps updates were too slow and two and probably most importantly, heading info coming from the gps was way too slow to be useful in turns. The net result was that it mostly drove around in circles. I decided [...]