ZeroPoint – Analog Output Overview ZeroPoint is an analog gauge with a prototyping area for your own sensors The gauge is a small stepper motor (X27.168) that is driven using an H-bridge (it’s a bipolar stepper so needs to be driven both ways) Although it is a standard stepper motor to operate, it only […]Continue Reading...
PiStep2 Stepper Controllers for Raspberry Pi PiStep2 is the new (May 2016) release of PiStep which has been a standard stepper motor controller for Raspberry Pi for a couple of years. PiStep2 changes the GPIO header to a 40 pin version, compatible with all Raspberry Pis since B+. This includes A+, B+, 2B, 3B and […]Continue Reading...
PlayHAT – Learn While Playing on Raspberry Pi Purchase PlayHAT here PlayHAT is a ready-assembled educational learning board with 9 full-colour neopixel LEDs with 4 big coloured buttons and a beeper It is a great way to start learning about use of GPIO in either Python or Scratch. It’s very easy to program; use the […]Continue Reading...
Model B+ Raspberry Pi Mounting Issues 14th July 2014 Click on any image to enlarge With the introduction today of the new Model B+ it is important to take note of the physical differences as well as the functional changes that have been made. Purchase from here The physical differences mean that some add-on boards […]Continue Reading...
IP Display Dongle – Usage & Software (Click on any image to enlarge) The IPDisp V1 is a 4-digit 7-segment LED display utilising a “retro” LED of the type found in 1970s calculators. This makes for a cute little display device that can be used to display anything you like that will fit in a […]Continue Reading...
Using Breadboard, LED & Resistors to Create a Traffic Light Click on any image to enlarge Fritzing Diagram PiCard: Assembling Hardware Pop the PiCard pinout display over the GPIO pins on your Raspberry Pi ® making sure that pin 2 is in the corner of the board. This allows you to easily see where […]Continue Reading...
Why? Extended headers on Raspberry Pi addon boards are a boon as they allow you to connect additional wires, or even another addon board in some situations. The problem is they tend to be relatively weak and can get bent over easily. Also, it is easy to plug things onto the extension shifted left or […]Continue Reading...
Links for Various Resources for the 4tronix PiRoCon Purchase PiDie Soldering the PiDie kit Connecting and using PiDie Scratch GPIO and Python software examplesContinue Reading...
Overview There are 9 LEDs arranged in a 3×3 matrix: 1, 2, 3 down left side (Red, Yellow, Green – ideal for use as traffic lights) 4 in centre (Green) 5, 6, 7 down right side (Yellow, White, Blue) These 7 LEDs then form the dots on a dice. The matrix is completed with LED8 […]Continue Reading...
Click on any image to enlarge it Check you have all the parts Printed circuit board (PCB) 1 x Diode (not shown above) 4 x switches 2 x resistor networks 4 x capacitors 100nF 12 x LEDs (2 x red, 2 x yellow, 2 x green, 2 x white, 1 x blue) 1 x GPIO […]Continue Reading...