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Category Archives: programming
Add-On Makes ESP32 Camera Board Easier To Program
Don’t you just hate it when dev boards have some annoying little quirk that makes them harder to use than they should be? Take the ESP32-CAM, a board that started appearing on the market in early 2019. On paper, the thing is amazing: an ESP32 with support for a camera …read more
Posted in Arduino IDE, camera, digital cameras hacks, ESP32, ESP32-CAM, ftdi, gpio, programming, reset, serial, sketch, usb, video wall
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Circuit Simulation in Python
Using SPICE to simulate an electrical circuit is a common enough practice in engineering that “SPICEing a circuit” is a perfectly valid phrase in the lexicon. SPICE as a software tool has been around since the 70s, and its open source nature means there are more SPICE tools around now …read more
Posted in analog circuit, circuit, integration, LTSpice, modeling, numpy, programming, python, simulation, software hacks, SPICE
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Yo Dawg, I Heard You Like FPGAs
When the only tool you have is a hammer, all problems look like nails. And if your goal is to emulate the behavior of an FPGA but your only tools are FPGAs, then your nail-and-hammer issue starts getting a little bit interesting. That’s at least what a group of students …read more
Posted in cornell, emulator, fpga, I/O, programming, research, xilinx
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Breakout Board Becomes Pogo Pin Programmer
Making a programming jig becomes exponentially more difficult after two pins and who would even consider building one if they were not setting up more than twenty boards? If it were easy for novices to construct jigs, we might all have a quiver of them on the shelf next to …read more
Posted in firmware, Microcontrollers, pogo, Pogo pin, pogo pin jig, programming, software, Wemos, wifi
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Play Tetris on a Transistor Tester, Because Why Not?
[Robson] had been using the same multimeter since he was 15. It wasn’t a typical multimeter, either. He had programmed it to also play the Google Chrome jumping dinosaur game, and also used it as a badge at various conferences. But with all that abuse, the ribbon cable broke and …read more
How To Program A Really Cheap Microcontroller
There are rumors of a cheap chip that does USB natively, has an Open Source toolchain, and costs a quarter. These aren’t rumors: you can buy the CH552 microcontroller right now. Surprisingly, there aren’t many people picking up this cheap chip for their next project. If there’s no original projects using this chip, no one is going to use this chip. Catch 22, and all that.
Like a generous god, [Aaron Christophel] has got your back with a working example of programming this cheap chip, and doing something useful with it. It blinks LEDs, it writes to an I2C display, …read more
Posted in CH552, CH554, Microcontrollers, programming, usb
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Crash your code – Lessons Learned From Debugging Things That Should Never Happen™
Let’s be honest, no one likes to see their program crash. It’s a clear sign that something is wrong with our code, and that’s a truth we don’t like to see. We try our best to avoid such a situation, and we’ve seen how compiler warnings and other static code analysis tools can help us to detect and prevent possible flaws in our code, which could otherwise lead to its demise. But what if I told you that crashing your program is actually a great way to improve its overall quality? Now, this obviously sounds a bit counterintuitive, after all …read more
A Portal Port Programmed For Platforms Of The Past
If you still have a Commodore 64 and it’s gathering dust, don’t sell it to a collector on eBay just yet. There’s still some homebrew game development happening from a small group of programmers dedicated to this classic system. The latest is a Portal-like game from [Jamie Fuller] which looks like a blast.
The Commodore doesn’t have quite the same specs of a Playstation, but that’s no reason to skip playing this version. It has the same style of puzzles where the player will need to shoot portals and manipulate objects in order to get to the goals. GLaDOS even …read more
Posted in antique, c64, commodore, Games, portal, programming, retro, retrocomputing, video game
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