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Driving a Mechanical Speedometer with a Raspberry Pi Part 2 of 2: The Code and Electrical Bits

February 20, 2019

In our first installment, you learned how we put together our Raspberry Pi-powered Mechanical Speedometer, now we will share how the device works. First, a bit about the Adafruit Motor HAT.  This is a great add-on board for the Pi, and it allows you to control up to 4 regular motors.  You have to solder the headers to the HAT which takes a few minutes.  The HAT should be powered separate from the Pi, and the HAT can take 5V to 12V.  The HAT does not have a barrel jack connector, but you can use an adapter and some wire.   In our case, we ran the HAT at 5V because our Beefy Hobby Motor drove the speedometer quite well with 5V.   In...

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Driving a Mechanical Speedometer with a Raspberry Pi Part 1 of 2: The Mechanical Bits

February 20, 2019

Mechanical things are so satisfying.  We love taking an old piece of equipment and making it work with products we sell. Back in the day, speedometers were driven by spinning cables.  These cables would typically run from the transmission via a flexible steel cable in a sheath to the speedometer.  Ever been in an older car where the speedometer bounces?  That is usually because the speedometer cable is about to fail. We have been looking for interesting ways to represent data, and we were thinking it would be fun to use an old odometer to show how many orders we have received.  To do this, we would need an old speedometer/odometer assembly, a motor, a way to drive the motor, and a way...

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New 2019 Products Roundup

February 15, 2019

We've added a section to the website to feature all the new products in stock. Here's an overview of all the exciting new options.  eInk Hats  Inky What     4.2"  (400x300 pixels) for Raspberry Pi  (any 40 pin) PaPiRus Zero for Raspberry Pi Zero      Arduino Two new on board WiFi options from Arduino Foundation ! MKR1000 (Arduino Zero + a Wifi shield) Classic UNO + Wifi         Micro:Bit Lamp:Bit  Mini Street Light Stop:Bit  Mini Traffic Light Create ProtoBoard MOVE Sensor Interface for MOVE mini buggy Game Controller (Game Zip64 without the display) All-in-One Robotics Board               SparkFun  ProtoSnap uses Alligator clips to easily connect components to Micro:Bit.  gator:starter gator:control gator:Color Alligator Clips Jumper...

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Good Foot Delivery

December 20, 2018

We are please to now offer Good Foot courier service within Toronto area.   Good Foot is a courier service that helps provide meaningful work to people with development disabilities.  Their prices are reasonable and the service is excellent.  We did a recent delivery to the King and University area, and our cost was $20+ HST.  The courier picked up the order at 1:00 and delivered it by 4:30. Right now we do not have a way to quote Good Foot service online, but if you are in Toronto, relatively close to the TTC, and you need your order today, give us a call at 437-886-5274 and we can setup the order for you over the phone!  Please note that same day service...

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