The second line display problem actually wasn’t that simple to fix, when all is said and done. I thought it was a matter of updating the letter count in the PIC when cursoring down to the second line. I modified the PIC code by adding the fragment: I thought this […]
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LCD Stuff
I achieved something today.For a while there I wasn’t sure I would but it eventually came together. Last night I soldered together one of my new LCD driver boards. I’ve had a few different driver boards, with designs going back to 2006, maybe earlier, but I recently sat down to […]
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I Did It
You know how I was wondering about how to display images on the OLED display using MicroPython? No? Hmm. Well, anyway, I was. And I figured it out. Not thanks to all the online articles. Actually I did find a GitHub repository that included a conversion script that turns .png […]
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More Smoke
This damn robot is starting to wear me down. I etched another batch of PCBs and constructed the ones I needed urgently. The modified sensor breakout board went together pretty well and testing has confirmed that the bump sensors now work as expected. I also constructed a new sonar deck […]
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Steps Forward, Steps Back
Okay, things are sort of going ahead with the robot. I soldered up the old motor controller this morning, stripping components from a spare board. I could have hunted around for the FETs I needed but I’m pretty sure I don’t have enough and I didn’t want to risk using […]
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Mistakes Were Made
And things were going so well. I spent yesterday printing off and installing the battery mount. It’s the same design as the one I put onto old Spot X, but modified to fit the new battery packs I’m using. It’s not a fantastic design but it works. I also finished […]
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Breadboard Modification
For a few years now I’ve had a collection of breadboarding modules that I’ve used for prototyping. They’ve all had an Arduino Uno mounted in the top corner. Since I started using Raspberry Pi Picos, I came to the decision to replace one of the Arduinos with a Pico. So […]
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It’s Adowable
So, I didn’t realise how tiny these things were. All the promo pictures have them looking like Nokia phone displays but no. They’re literally an inch square. Anyway in my last order I bought 2 of these little OLED displays because the Raspberry Pi Pico has I2C channels coming out […]
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Some Things Don’t Change
I finally got around to ordering a new roll of solder. Yes, I bought leaded solder because screw brain cells, what have they ever done for me? What I find interesting enough to spend time writing this post about is that I purchased it from the same supplier as the […]
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Drawing my Pareidolia
So, I swear the original on the left looks more like a grumpy man in real life than it does in the photo, but anyway, that’s a photo of a piece of popcorn that’s been sitting on the floor mat of my car for the last week or so. I’ve […]