I'd like to avoid frequently replacing batteries or running power wires to the boxes if at all possible, as such, I'm either wanting to have ultra-low power components and 'smarter' operational times (eg only show LED's when someones in the room) or...
An article recently published on MOONGIFT, a Japanese developer site, has showcased RasDash! The article is entirely in Japanese and Google Translate won't accept the URL as it has special characters but YANDEX does. Below are some links and a basic...
I haven't putzed about with the v0.1 base at all, but I think I've got a motor mount design that I like. It's got the split bolt setup for securing the motor (including a cutout for holding a 2-56 nut), and the legs are cool lofted dealies. Lots of radii...
With the ALU verified and the RAM connected, today the breadboard determined that the first 8-bit Fibonacci number is 144. 0000 0000 ld $00 ; outer loop 0001 c200 st [$00] ; a=0 0002 0001 ld $01 ; b=1 0003 fc0a bra $0a 0004 0200 nop ; (pipelining) 0005...
Size: about 50x50mm (size of condoms I have, could be a little larger if required)Layers: preferrably a single 2-layer PCB, for easier ordering at the usual suspects in ChinaConnections: debug UARTMicroUSB for charging the batterytemperature sensor connectortwo...
Today we added a DHT sensor to our project and DHT measures the temperature and humidity of outside atmosphere and tells us on the app what the temperature and the humidity is outside. We had some problems adding it so we looked up some websites...
We have secured some cardboard samples. We will be working on different designs and see what thicknesses will work best for our base unit. I think the thinner stuff with the white outside will look the best.
I decided that once I get this project working well, that I might make several for family and friends that might need something like this. To that end I placed an order for some HC-SR04 (Ultrasonic Ranging Module) and the HC-SR501 (PIR Sensor) modules...
I ended up using the key combination for On and Mode (it seemed appropriate) to change the mode, which basically is between TI-83 keyboard mode for the TI-83 emulator and Regular mode which allows through various submodes access to just about all of...
I sent out the Headband Sensor Package Version 0.89 PCB's to OSH Park, Got three purple PCB's back, and they look great! The top and bottom of the boards look pretty good. I could have flipped the resistor silkscreen (the R1, R2 and R3),...
After a sinuous but exciting road, the Beta prototype came out nice, the entire device is amazingly small: I was able to design it to fit the 110x70mm aluminium enclosure I planned initially without renouncing to any of the sensors nor reducing the 1500mAh...
Looking at the registers I noticed something. the first 24 bytes look like they have data and the last 6 bytes look like they have data. This looks like what a WII peripheral in encrypted mode would look like. The fixed 8 byte pattern repeating every...
On my TI-89, one of the battery contacts on the PCB was heavily corroded and it took a good deal of time and heat to reflow solder to make a new pad. I did this to the V200 as a preventative measure too, but I guess I heated up the nearby fuse to where...
In this post, I'll walk you through how the latch works. Later we'll walk through what's causing the problems. Two Mechanisms There are two mechanisms for opening the latch: the lever outside the door, and the knob inside. Outside lever Inside knob The...
So I used the models based on Steve's measurements to create a DXF file to cut out the side panels. The inside panel has holes defined that will be used to join the inside panels to the cross-bars that will separate them at the correct distance apart,...