Elastic Sheep

Because elasticdog was already taken

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Entries Tagged as 'Project Wiggum'

Physical design, first iteration

December 15th, 2009 · No Comments · Project Wiggum

Choosing an enclosure My main requirement for choosing an enclosure was to find the smallest unit able to contain the GPS module and the user interface. Something barely bigger than the internal parts gathered together. After searching the internet, I found very few choices that pleased me. A model I found interesting was the 1593K [...]

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Testing the serial interface and the GPS

November 3rd, 2009 · 4 Comments · Project Wiggum

In this post I will connect my EM-406A GPS module to the prototype and write some code to test the sending and reception of serial data. Connecting the GPS I already wrote about the connection of the EM-406A GPS module to an ATMEGA168 and Teensy AT90USB162 in this post and this post. I will use [...]

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Driving a buzzer

October 12th, 2009 · No Comments · Project Wiggum

In this post I will add a buzzer to my prototype and show two ways to test it, first by bit-banging a pin then by using a hardware counter. Connecting the buzzer I am using a CEM-1203 magnetic buzzer (datasheet). This buzzer has peak frequency responses at 400Hz, 800Hz, 2kHz and 4kHz. To connect it [...]

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Adding switches

October 5th, 2009 · 1 Comment · Project Wiggum

In this post I will add two switches to control the selection of one led among six. One of the button will increase the selection, the other one will decrease it. Connecting the switches I connect the switches on the PC0 and PC1 inputs and on the ground. I don’t need any external pull-up resistor [...]

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Blinking the leds

September 29th, 2009 · No Comments · Project Wiggum

My prototyping of the Wiggum project will begin with the usual blinking leds demo. This will help to establish a simple basis for hardware and software by slowly adding features layer after layer. Building a basic circuit My target is an ATMEGA168. Here is the datasheet. I will use an USB port as the 5V [...]

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