One is located on the back of the case and just sets the backlight On or Off. On the Perspex case version there are 5 Touch Buttons. On the completed clock the LEDs are fixed behind the letter mask and a sheet of dark neutral density Perspex sheet and will only be visible when an LED is on illuminating a letter on the mask. The dot matrix displays are fixed to show through the front of the card mounts. Not shown in this photo are the 12v power lead and short USB cable coming out of the rear of the box. Rubber feet are glued to the wooden block feet to stop the clock slipping on the desk or table top.Īs this clock is for a first wedding anniversary a label is attached to the back behind a Perspex sheet. Wooden feet are cut from blocks of wood and hold the frame at an angle on the desk or table. The touch sensors can be seen at the rear of the frame with Perspex covers. The box is fixed to the frame with 2 angle brackets I cut from some angled aluminium. The box lid is fixed by small wood screws to these corner braces. Picture 2 On the rear of the frame I have added a box from thin plywood 170mm x 170mm x 40mm deep.I have used Mitre Glue (picture 3) to fix the box together then cut and glued corner braces from wood off cuts. The Perspex glass was replaced with real 2mm glass as the Perspex was attracting too much dust. Enough to see the display with a bit of space all around. Picture 1 I have used a plain black 6"圆" (150x150mm) picture frame with a white card mount reducing the frame size down to 4"x4". Picture 3 shows the relative sizes of the Mini word clocks compared to my original clock. The Perspex case and 20mm Perspex base each cost more than the Picture frame alone. An cheaper MDF base could also be built and this can also house a PIR instead of a Radar sensor in the main case and the DHT22 temperature & humidity sensor.
The Perspex Cube clock is a bit more tricky to build as there are 2 Veroboards to build along with a number of holes to be drilled in the Perspex case and base. You may be able to get a shadow box with the same size box on the back. On the rear of the frame I have added a box from thin plywood 170mm x 170mm x 40mm deep. it just requires a plain black 6"圆" (150x150mm) picture frame with a white card mount reducing the frame size down to 4"x4". The picture frame clock is the easiest and cheapest of the clocks to build.
MINI DIGITAL CLOCK FULL
Each design uses a different Veroboard layout but shares the same code.įull details also available on my Word Clock Mini web site.Ĭredits This clock is a miniaturised version of my Word Clock and is in turn based on the original Word Clock by Wouter Devinck full details on this Instructable and the "Catalan" Pijuana Word Clock software based on Wouter Devinck's clock (this is a fork off the original Wouter Devinck design) here GitHub. Picture Frame Clock pic 1 or a Perspex Cube Clock pic2. The clock draws 20mA (all LEDs off) to 40mA (LEDs max brightness) from it's 12v supply. Time setting can also be carried out in the digital clock mode using the touch buttons.
MINI DIGITAL CLOCK ANDROID
Plugging in an Android phone/PC allows setting of the time and choice of what mode to display on startup. A mini USB socket allows software programming in situe. There are touch pads in each corner to setup and control the clock. The Clock display measures 64mm x 64mm and is designed to be desk mounted although the picture frame version could go on a wall. There is an option for PIR/Microwave Radar Sensor control so the clock automatically turns off when no one is in the room. When running as a slave off a Master Clock time is synchronised on every 30 seconds past the minute. In stand alone mode the clock runs off it's built in temperature compensated real time clock with an accuracy of ☒ppm from 0☌ to +40☌ The clock can be stand alone or run as a slave off a Master Clock if required. There are modes, digital clock, analogue clock, temperature & humidity, & also three games, Game of Life, Simon & Tetris. Uses an Arduino Nano and Four MAX7219 32mm Dot Matrix Displays giving 256 LEDs the same as my large Word Clock
Mini Arduino Word Clock with minute resolution of time in words and linear display of seconds. Relatively easy to build Word Clock using a Arduino Nano and four MAX7219 32mm Dot Matrix Display Modules Choice of styles, picture frame or Perspex cube with various base options. Arduino Word Clock Mini- Anniversary Clock
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