ESSENTIAL INFORMATION BUILD INSTRUCTIONS CHECKING YOUR PCB & FAULT-FINDING MECHANICAL DETAILS HOW THE KIT WORKS PLAY GAMES ON THE MOVE BY BUILDING THIS ELECTRONIC DICE KIT Version 2.
Electronic Dice Essentials www.kitronik.co.uk/2109 Build Instructions Before you start, take a look at the Printed Circuit Board (PCB). The components go in the side with the writing on and the solder goes on the side with the tracks and silver pads. 1 PLACE RESISTORS Start with the seven resistors, R1–R7, which are all 330 (orange, orange, brown coloured bands). The text on the PCB shows where R1, R2, etc go. 2 SOLDER THE IC HOLDER Solder the Integrated Circuit (IC) holder into IC1.
Electronic Dice Essentials www.kitronik.co.uk/2109 Checking Your Dice PCB Check the following before you connect power to the board: Check the bottom of the board to ensure that: All these leads are soldered. Pins next to each other are not soldered together. Check the top of the board to ensure that: The notch on the IC holder / IC is next to the power connection. The flat edge of each of the LEDs match the outline on the board.
Electronic Dice Essentials www.kitronik.co.uk/2109 Power up sequence Fault finding flow chart - page 1 Start Power the board up Do any LEDs light? Check The batteries are good and in the right way around Check the power clip is connected the right way around and soldered correctly.
Electronic Dice Essentials www.kitronik.co.
Electronic Dice Essentials www.kitronik.co.uk/2109 25 Designing the Enclosure These technical drawings of the dice PCB and the battery holder should help you to plan this. All dimensions are in mm. Diameter of the LEDs is 5mm and the height is 9mm. Diameter of the three mounting holes is 3.3mm. Mounting the PCB to the enclosure The drawing to the left shows how a hex spacer can be used with two bolts to fix the PCB to the enclosure. Your PCB has four mounting holes designed to take M3 bolts.
Electronic Dice Essentials www.kitronik.co.uk/2109 How the Electronic Dice Works At the heart of the electronic circuit is a PIC microcontroller. A microcontroller is, in effect, a small computer. The circuit uses a push switch to detect when it should start generating the next number to be displayed. When the button is pressed the PIC very rapidly cycles through number 1 to 6, upon release of the button the number is displayed.
Online Information Two sets of information can be downloaded from the product page where the kit can also be reordered from. The ‘Essential Information’ contains all of the information that you need to get started with the kit and the ‘Teaching Resources’ contains more information on soldering, components used in the kit, educational schemes of work and so on and also includes the essentials. Download from: www.kitronik.co.
