The open communication robot for everyone In recent years, a variety of communication robots have appeared on the market. However, most of them are "closed", dependent on specific proprietary services, or their specifications are not disclosed...
The OriginsWhen we decided to throw a party in LA (which became know as The Gathering) I wanted it to be more than just free t-shirts and beer. Laser Graffiti popped to mind and I was glad that Ben was willing to take the lead on that project....
STM32103RET6 ARM Cortex (currently, if i can't make the ADC behave and the SPI SLAVE to work correctly then going to flip back to the SAM7, which would suck a lot. (which we ended up doing for this round) ) I have still continued the STM32 build...
Intending to keep this as compact as possible I'm looking at BGA packages for SRAM and std package for the SPI Flash. The several that I've chosen will enable me to keep costs below $30 for the whole board (target = $25) and still have head room...
The main controller board is an off-the-shelf Parallax Quickstart board. I designed and built a custom shield that provided a power supply for the project and driver outputs (TC4427) for the LED strings. Though we didn't use it, the board also holds...
I needed to remove the dials and the switch from the board because I wanted to have them accessible from the rim of the ear muff. However, each of these components had a minimum of 5 pins. My approach was to use a hot air gun to melt all the solder on...
I needed to remove the dials and the switch from the board because I wanted to have them accessible from the rim of the ear muff. However, each of these components had a minimum of 5 pins. My approach was to use a hot air gun to melt all the solder on...
The transmitter in the fourth picture uses a few more parts. I had a 3.3V breakout board and the signal reached only about a yard. So I added a 555 voltage doubler to Albert's hardwarehttp://www.talkingelectronics.com/projects/50%20-%20555%20Circuits/50%20-%20555%20Circuits.htm...
So my son, [B] did the soldering work. His uncle help him mill out the inside of the car to fit the electronics. [B] Drilled the holes for the lights and then painted the car with little sisters help. We tested the code on the MSP430 launch...
The design consists of two servos, mounted in a way in witch one servo pans the other on an x axes, while the other servo tilts a laser on it's y axes. The laser is turned on and off with a transistor, and a camera shutter control is operated by a transistor....
This is for the large blue box version of the YOOCNC 3020/6040, since it fits in the existing PCB stand offs and uses the same connectors.I added inputs for limit switches etc, so they just have to be run around the machine and a few micro switches added...
There's an old hard-disk which I stripped down so that the front only has spindle coming through. I used a mill to face off some of the protuberances and other features which held the read/write head-arm in place. At the bottom there is a PCB I...
I've wanted to build my own amp for quite a while. For bass guitar, the selection of amplifiers you can buy is pretty lack-luster, and mid-volume studio amps are hard to find. It seems like most of what's available is either a practice amp or a stadium...
Currently this bad boy has two modes: hit and hold. Hit turns on the heat until the set temperature is hit, then shuts off. Hold tries to hold the temperature at the setpoint.It also has a FTDI USB to UART IC, so it can be loaded with optiboot (after...
HydraBus v1.0 Rev1.5 In Stock on DigiKey:https://www.digikey.com/en/products/detail/benjamin-vernoux/hydrabus-v1/15652912 Features of the HydraBus board: Very small board only 60mm x 37mm size (extensible with shield which can be connected on top or...