We made progress on our robot this week! Check out the video at the end of this post. This is what happened: During this week I figured out that our H-bridge circuit did not work as intended. The problem was the TIP12x transistors. They have a huge voltage drop from collector to emitter of 2V. […]
More on Microcontrollers:
Today we tried to build an H-bridge to control the motors. An H-bridge is a circuit that makes it easy to control a motor to go backward or forward, for example from an Arduino. We used TIP120 and TIP127 transistors and built the following circuit using 5V as VCC:
We started out as a group of three people. Eduardo, Jefferson, and me. Today, we discussed what to build. We wanted to build something that would be fun, and that we could finish within the time frame I’m going to stay here (~2 months). And it should be based on an Arduino. Jefferson wanted to […]
It was sunny and hot. I was wearing a backpack and I could feel the sweat building up on my back. But I had to walk fast. Because I was late. And because the locals had told me to be careful in the center. I had emailed with Thomas, the founder of the makerspace Göra, […]
As some of you know, I’ve been into mini-radars for a long time. Not sure what a mini-radar can do? Check out some of my radar circuit examples. On my GitHub repository, I’vGitHub hosting an Arduino library for the XeThru Radar Sensors. Novelda, the company behind the XeThru radar, has created their own GitHub repository […]
A while back I wrote a blog series for Atmel on how to build a microcontroller board. I also created a version for my blog, and it became very popular. The idea was to show what it takes to build a microcontroller board from scratch.