The foundational base for this project required some sort of oven. From the design perspective, I needed an oven, preferably one with a good heat-up slope, a temperature sensor, a solid-state relay that was capable of handling “house-hold”...
One of the goals of this project is to make the code capable of being entered into the Hackaday 1K code competition. This isn't perhaps as easy as it sounds: 1K is not a lot of memory, and the Arduino framework (as generally friendly as it is) isn't...
Working on a flow sensor test setup the breadboard suddenly exploded! And I though blue smoke was the worst that could occur.. ---------- more ----------Yesterday I made a great step forward testing the flow sensor. I made a simple breadboard setup to...
Update September 5, 2017 - IO is adding correctly once again. Could not isolate the problem so just started adding 104 caps to parts of the registers that had not already been filtered. Still have a very slight glitch with one led on the accumulator...
I'd like to talk a little about some of the changes that cut this project down to almost 1/3rd of it's original size. In earlier logs I already mentioned the USB Device Firmware Upgrade (DFU) support, extra USB descriptors, accurate baud-rate calculation,...
An Integer Version of the DemodulatorAs the code will be ported to a lowly Arduino using C code, I first looked at if I could use 16 bit signed integers. The answer is strictly yes. Strictly in that the 32 bit result of a 16 bit multiplication is not...
Well, I lied, because projects like this one are never actually finished. But let's say I'm not going to do any major rework from now. It took one more board revision and a little bit of coding to come up with final hardwareIn the meantime, I made some...
I went looking on some junk boxes while I am still waiting for parts and found these - That's 104 Xilinx XC9536XL - 5 Volt tolerant 36 macro 10ns CPLD's. I have ordered some level translators because I want a mix of 3.3 Volt chips and older 5 Volt chips...
The PD Buddy Wye power/data splitter is now available on Tindie! If you have a PD Buddy Sink and want to make full use of the new features in firmware version 1.1, I encourage you to check it out!
Yes, the latest batch of PD Buddy Sinks just arrived from @MacroFab! There are twenty in this batch, and they've all been listed on Tindie. Will this be a repeat of last time? The STM32F072C8U6 still has shaky availability (what the...
In this large-scale training run I'll be using 5177 negative images, and 750 positive elephant-images. I'll attempt hard-negative mining on 500 images. Hard-negative mining is outlined in the following paper 'Object Detection with Discriminatively Trained...
Finally got around to doing some serious testing, and overall the results are looking good!I used a prototype with the battery holder area broken off and an external battery connected. This configuration has the smallest PCB copper area, and as such...
In my quest to reduce the cost and manufacturability of the LiFePO4wered/Pi+, my attention was drawn to the ETA1096, a Chinese boost converter. It is significantly lower cost than the TPS61236P, and it comes in a nice leaded package, so I thought...