Difference between revisions of "SpaceAPI:Button"
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{{Project | {{Project | ||
|picture=spacebutton_acta.jpg | |picture=spacebutton_acta.jpg | ||
| − | |ProjectSkills= | + | |ProjectSkills=OpenWRT, basic electronics |
| − | |ProjectStatus= | + | |ProjectStatus=Finished |
|ProjectNiche=Electronics | |ProjectNiche=Electronics | ||
|ProjectPurpose=Infrastructure | |ProjectPurpose=Infrastructure | ||
| Line 8: | Line 8: | ||
[[category:SpaceAPI]] | [[category:SpaceAPI]] | ||
[[Category:Arduino]] | [[Category:Arduino]] | ||
| + | = Spacebutton mkII = | ||
| − | == | + | == Hardware == |
| − | + | The current Space button consists of: | |
| − | |||
| − | |||
| + | * an 8Devices Carambola2 dev board, running a custom LEDE(was OpenWRT) linux system | ||
| + | * an industrial stateless button. | ||
| + | * a [[PCB_Techinc_Logo|Techinc Badge]] | ||
| + | * a wired Internet connection | ||
| + | * a USB power adapter / mini-USB cable | ||
| + | |||
| + | == Design == | ||
| + | |||
| + | [[File:SpacebuttonmkII.svg]] | ||
| + | |||
| + | == Software == | ||
| + | |||
| + | The Carambola 2 runs a custom compiled LEDE (formerly OpenWRT) firmware with a go program | ||
| + | for the logic. | ||
| + | |||
| + | https://github.com/brainsmoke/spacebuttonmk2 | ||
| + | |||
| + | === Compiling LEDE === | ||
| + | |||
| + | Sadly, precompiled packages of Openwrt/LEDE do not support MIPS | ||
| + | hardware float emulation out of the box, and the (default) Go | ||
| + | compiler does not (yet) support software float. | ||
| + | |||
| + | Solution: compile LEDE with in-kernel hardware float emulation | ||
| + | |||
| + | ==== LEDE with in-kernel hardware float emulation ==== | ||
| + | |||
| + | Follow the steps at: | ||
| + | |||
| + | https://lede-project.org/docs/guide-developer/quickstart-build-images | ||
| + | |||
| + | |||
| + | apt-get install subversion g++ zlib1g-dev build-essential git python rsync man-db | ||
| + | apt-get install libncurses5-dev gawk gettext unzip file libssl-dev wget | ||
| + | |||
| + | git clone https://git.lede-project.org/source.git lede | ||
| + | cd lede | ||
| + | git checkout -b lede-17.01 | ||
| + | |||
| + | ./scripts/feeds update -a | ||
| + | ./scripts/feeds install -a | ||
| + | |||
| + | make menuconfig | ||
| + | # select Target System -> Atheros AR7xxx/AR9xxx | ||
| + | # select Target Profile -> Carambola2 board from 8Devices | ||
| + | make kernel_menuconfig | ||
| + | # select Kernel type -> [*] MIPS FPU Emulator | ||
| + | make | ||
| + | |||
| + | # resulting sysupgrade image: | ||
| + | # bin/targets/ar71xx/generic/lede-ar71xx-generic-carambola2-squashfs-sysupgrade.bin | ||
| + | |||
| + | ==== Compiling spacestate ==== | ||
| + | |||
| + | GOARCH=mips go build -ldflags="-s -w" | ||
| + | |||
| + | === Techinc Logo State Indication code === | ||
| + | |||
| + | https://github.com/techinc/techinc_logo_avr/tree/master/spacebutton | ||
| + | |||
| + | make | ||
| + | make fuses | ||
| + | make flash | ||
| + | |||
| + | = Spacebutton mkI (This spacebutton is no longer in use!!!!!) = | ||
==Nanode code== | ==Nanode code== | ||
Revision as of 19:32, 21 November 2017
| Projects | |
|---|---|
| |
| Participants | Brainsmoke, Guido, Realitygaps |
| Skills | OpenWRT, basic electronics |
| Status | Finished |
| Niche | Electronics |
| Purpose | Infrastructure |
Spacebutton mkII
Hardware
The current Space button consists of:
- an 8Devices Carambola2 dev board, running a custom LEDE(was OpenWRT) linux system
- an industrial stateless button.
- a Techinc Badge
- a wired Internet connection
- a USB power adapter / mini-USB cable
Design
Software
The Carambola 2 runs a custom compiled LEDE (formerly OpenWRT) firmware with a go program for the logic.
https://github.com/brainsmoke/spacebuttonmk2
Compiling LEDE
Sadly, precompiled packages of Openwrt/LEDE do not support MIPS hardware float emulation out of the box, and the (default) Go compiler does not (yet) support software float.
Solution: compile LEDE with in-kernel hardware float emulation
LEDE with in-kernel hardware float emulation
Follow the steps at:
https://lede-project.org/docs/guide-developer/quickstart-build-images
apt-get install subversion g++ zlib1g-dev build-essential git python rsync man-db apt-get install libncurses5-dev gawk gettext unzip file libssl-dev wget git clone https://git.lede-project.org/source.git lede cd lede git checkout -b lede-17.01 ./scripts/feeds update -a ./scripts/feeds install -a make menuconfig # select Target System -> Atheros AR7xxx/AR9xxx # select Target Profile -> Carambola2 board from 8Devices make kernel_menuconfig # select Kernel type -> [*] MIPS FPU Emulator make # resulting sysupgrade image: # bin/targets/ar71xx/generic/lede-ar71xx-generic-carambola2-squashfs-sysupgrade.bin
Compiling spacestate
GOARCH=mips go build -ldflags="-s -w"
Techinc Logo State Indication code
https://github.com/techinc/techinc_logo_avr/tree/master/spacebutton
make make fuses make flash
Spacebutton mkI (This spacebutton is no longer in use!!!!!)
Nanode code
https://github.com/techinc/SpaceButton
(and EtherCard fork) https://github.com/techinc/ethercard
The code uses DHCP to obtain an IP address and find a gateway.
Wiring
The button is a circuit breaker. Connected to pin 3, it pulls this input pin to ground when not pressed.
The code enables the internal pull-up resistor, so no external one is needed.
The LED is connected to pin 5, also using a pull-down circuit.
(So the led should be *on*, when pin 5 is low.)
Troubleshooting
The LED blinks:
- every four seconds: No link
- every two seconds: No DHCP
- every second: No DNS
- twice a second: Changing the space state, but no response yet from the server
- two seconds on, two seconds off: 'upstream' space state unknown.
Power
The nanode is now powered through a USB-port.
DO NOT power it using 9V. There are some issues with the voltage regulator (which is not used when fed through (5V) USB.)
Notification App
An Android app is available to monitor the current state of the space and notify when it changes. The source code is available on GitHub: Source
The app can be downloaded from Google Play or GitHub
Spacebutton iterations
