To solder the boards there were few SMT (surface mount) components (mainly diodes and resistors) and some THT (through hole). For SMT usually you will have a stencil, pick and place machine, reflow oven to do all of that automatically but in my...
Already during soldering it is good to make some test. In my case it was checking if all the diodes are done correctly (it wasn't in first try). To do so I used just small power supply and jumper wires:Some more testing can be done when fully assembled...
Hey everyone. I passed the formalities necessary to actually start a Crowd Supply campaign to support production of the Esparagus series boards. If you're a hobbyist maker it is actually very hard to produce these small projects in small volumes,...
Hey everyone. I passed the formalities necessary to actually start a Crowd Supply campaign to support production of the Esparagus series boards. If you're a hobbyist maker it is actually very hard to produce these small projects in small volumes,...
Car and spider ideas :3rd week: We made a small car using cardborad. The car will make noise when it collides with a wall, and it is going to light the car headlights when the sensor catch the noise. 4th week: During this class...
The design of Nanosleeper is relatively simple. It is meant to be a development board, so the components on it are meant to represent the minimum for proper operation in the envisioned use case: prototyping ultra-low power systems. Nanosleeper is also...
Two GAGG(Ce) and three LYSO scintillator crystals next to a TO-92 transistor for size comparisonPhysics overview When a high energy photon (a gamma ray) is absorbed by a scintillator some visible photons are emitted. These visible photons have a fairly...
Physics overview To convert the small number of optical photons into an electric signal a photodiode is not ideal. Short of using a photomultiplier tube (PMT) the best option is a silicon photomultiplier (SiPM). These are arrays of thousands of cells,...
SiPM pulses have fairly large amplitudes so don’t need a lot of amplification, but they have fast rise-times below a few ns and decay times in the range of hundreds of ns. The figure below is an example pulse provided in the Broadcom AFBR-S4N44P014M...
I have an old 3D printer, an UP3D mini to be specific. It has a build volume of just 10cm x 10cm x 10cm. That's pretty small by modern standards.Additionally, the bed-heater is fixed at 60 degrees centigrade and in it's original factory state, it only...
Initial 3D printing tests were done with small objects downloaded from Thingiverse. Then I tried Tinkercad.com and Windows 10's built-in 3D Builder app, interchangeably, just to try and get the hang of using these tools as an easy way to get started...
The Perixx PS/2 keyboard suggested in the Parts List (PERIBOARD-409) is built to be used on desk and as such has a nice casing already. However, we want to put it in our custom case, where only the top will be visible. So, we need to : Place the keyboard...
Do not try to pull the wires out of the header connector on the mini-USB cable.Each wire is crimped into a metal receptacle, which I refer to as a pin for convenience.Each pin is latched into place by a tiny little "finger" of plastic, or latch.To remove...
Dan Maloney 3:00 PM OK welcome one and all to the Hack Chat! I'm Dan, I'll be moderating today along with Dusan as we welcome Niklas from Advanced Tinkering. We're going to be talking about nothing, or as close to it as we can get -- high vacuum AdvancedTinkering ...
Dan Maloney 3:00 PM OK, welcome everyone, let's get started. I'm Dan, I'll be modding today along with Dusan as we welcome Nyeli Kratz to the Hack Chat. Today we're talking about biomedical engineering. Walter Lite 3:00 PM hi dan Dusan Petrovic 3:01...