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...
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...
In the original configuration, the airswimmer is propelled by the tail fin, which can be flapped left-to-right using the remote. The whole fish can also be tilted up or down by moving the gondola, which holds the battery and receiver, forward and back...
[Intro] {Updated 2/25/2016}VisualK-OS collectively refers my custom-built system of lighting devices, intended for use with my band's (Saturn's Iris) live shows. To date, the system consists of: The main control center, Thor and the Flood Bank Array...
The battery in my Lenovo laptop were slowly losing part of it's capacity. The remaining capacity was 69% (good score after 2,5 years) but I need the really long battery time while travelling. The battery statistics according to Lenovo power utility:So,...
NOTE: This project is gradually improving. It is fully functional at this point, but it could be better.It started as a pen plotter based on the entrails of a printer. It uses a pen to draw paths from a vector graphics file(SVG file). I wanted to make...
The original software that DSKY were all written in a assembler called YUL (“Yuletide”). Although the source code for DSKY are available on line, not everyone understand the language itself. Because of this, I plan on converting the programming...
I recently picked up an old DVD player from the side of the road - a Pioneer DV-363 - mainly for recycling parts. Upon opening I found the VFD display and half the keypad sat on a separate PCB, and used a basic serial interface. I thought...
Apologies in advance for the potato-quality photo, I'll get a better one uploaded when I have a chance. The picture is actually four of the boards as they arrived direct from our manufacturer with a penny for scale. This project was done by the now-defunct...
How can we sense currents?There are 2 practical methods: shunt resistors and magnetic methods.Shunt resistors are OK for low currents (10A or less) but do not provide isolation between your control circuit and power circuit (not so good for 400 V AC).----Magnetic...
The device is based on a PIC16F88 microcontroller. The sleep mode of the PIC is used for standby, negating the need for a power switch. The PIC simply records the last state of the metal ball switch and then uses the opposite of this as a trigger for...
This page describes a prototype board for the Atmel Mega644 or Mega32 (PDIP) MCU. It includes a power supply, crystal clock, and generous bypass capacitors. A six-pin header allows flash memory programming from an STK500 or AVRISPmkII. All port pins...