Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca on sn.jonkman.ca

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1. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:57:43 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   !TIL 'man ascii'
2. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:57:31 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   @Tonious shows us some command line tools to manage I2C, eg. i2cset, i2discover (?)
3. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:53:33 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   Next option: Use I2C = Inter-Integrated Circuit; wiring is simple, libraries are available
4. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:48:59 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   The SPI is so well supported it's actually a device in the !RaspberryPi kernel: /dev/spidev0
5. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:47:07 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   That's the SPI protocol, and it's very well supported in the hardware of both !RaspberryPi and #Arduino
6. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:44:10 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   Now @Tonious explains the use of shift registers and an old debugging protocol he uses to transfer data
7. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:38:28 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   But, sadly, it doesn't work. @Tonious explains this is due to a new bootloader, which has tighter timings
8. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:36:36 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   Now @Tonious shows us how to link the pins on the !RaspberryPi to his single-chip #Arduino breadboard
9. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:33:09 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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   @Tonious explains how serial protocols work. Remember start bits, stop bits?
10. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:31:09 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious wants to minimize, reduce the #Arduino to just one chip, shows us a breadboard with five components
11. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:28:37 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious is using a 'make' script to compile a program on the !RaspberryPi and upload it to the #Arduino
12. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:27:39 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious: "I'm a Unix programmer. I like ugliness."
13. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:24:45 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    and @Tonious compares that to the hardware on an #Arduino, which has maybe one quarter the hardware, far less complex
14. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:22:01 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    Now @Tonious goes over the hardware on a !RaspberryPi
15. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:18:15 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious on optimizing compilers: "Don't do that. I'm the programmer, I know better."
16. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:16:07 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious starts with a small #Arduino program written in C to blink an LED
17. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:15:12 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious explains the purpose of an #Arduino - it's an interface to real world hardware
18. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:13:10 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    @Tonious wants to make a portable !RaspberryPi using an #Arduino, but he's not happy with existing plans
19. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:11:26 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    According to @Tonious, the !RaspberryPi 3 draws about 800 mW, enough that an Apple charger with 1m cable won't work
20. Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca (bobjonkmanformer)'s status on Saturday, 28-Jan-2017 15:08:49 EST Former Bob Jonkman -- Please use the new server at https://gs.jonkman.ca

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    Next at @KWLinuxfest is Tony Thompson @Tonious on the !RaspberryPi and #Arduino

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