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I have spent some more time, working on the Arduino Hot Plate - What's for dinner?.   The breadboard was a mess with everything just plugged in. So I trimmed all the leads and made everything look nice and also more robust.   Also, with the big hotplate being too big for my power supply to heat up to soldering temperature, I am now using a smaller piece of aluminium (37mm x 82mm and half as thick) with a new round 5.1 Ohm heater element. It still lags behind the profile, but reaches ...
NanoRama Enter Your Project for a chance to win a Nano Grand Prize bundle for the most innovative use of Arduino plus a $400 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   What's for dinner? FR4 with a side of solder and flux gravy, sprinkled with 0603s.Setup  My entry in the Arduino Day 2020: NanoRama: Which Board Are You Going to Use for Your Arduino Day Project?  giveaway was very straight forward:  ...
A USB-C PD Sink up to 20V 5A based on the Cypress CYPD3177 USB PD Controller    USB-C PD offers the option to negotiate power delivery from a compatible power supply. This board plays the role of a sink device, enabling any device to be powered from a USB power supply. Any type of power connector can be attached through a 2-pin screw terminal or directly soldered into the PCB for a lower profile. The voltage can be set to 5V, 9V, 12V, 15V or 20V and current up to 5A is possible. B ...
wolfgangfriedrich

You Are Here

Posted by wolfgangfriedrich Feb 10, 2019
I decided to explore the artistic PCB realm and the map location pin became the theme. A reverse mounted red LED, powered by a CR2032 coin cell, is shining through the PCB to provide a bright homing beacon.   Soon also available in blue.   The 1st installment is the classic maps pin inspired by your favorite 'show me the way' tool.  The 2nd version has the outline of the more modern icon that can be found everywhere by now, even on my milk carton. The reverse mounted LED is ...
The roadtest about my adventures in Vivado together with the Digilent ARTY S7 board continues.   I just re-found a feature that might help during very low level debugging and system testing: the dashboard.   It is accessed through the hardware manager, when connected to a board. Open the 'Hardware Manager' from the Flow Navigator panel and connect to your board. I am not sure which devices support this feature, but the Spartan7 and all Zync do. Connect to your device to establish c ...
wolfgangfriedrich

Scare-O-Matic

Posted by wolfgangfriedrich Oct 27, 2018
  The Scare-O-Matic is a little box 105mm x 65mm x 45mm with a 5V barrel jack for power supply, a motion sensor and a powerful 0.5W 45mm diameter speaker. The motion sensor is wired to a Sparkfun microSD Audio Module WTV020SD to trigger the next sound clip when motion is detected. The full circuit schematic is shown here: Everything is held together nicely with hot glue and double sided tape in a Hammond Box with holes for the barrel jack, the motion sensor and the speaker. Details Th ...
Open Arduino Enter Your Project for a chance to win a grand prize for the most innovative use of Arduino or a $200 shopping cart! The Birthday Special: Arduino Projects for Arduino Day! Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll   This Arduino shield will make an end to your 1st project being an LED to be flashed. Now you are able to connect a display (which we are all hooked to anyways) and generate a virtual LED that is going to blink in every col ...