Projects:Spacestate - Bewerkingsoverzicht

Sjors Gielen op 10 jan 2023 om 20:30

2023-01-10T20:30:15Z

← Oudere versie		Versie van 10 jan 2023 20:30
Regel 19:		Regel 19:
	The state of the switch is measured by pulling the bottom to ground (green wire in the image to the right), and then measuring the voltage at the top using the D5 pin with an internal pull-up (yellow wire). This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.		The state of the switch is measured by pulling the bottom to ground (green wire in the image to the right), and then measuring the voltage at the top using the D5 pin with an internal pull-up (yellow wire). This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.

	Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.		The LED board is powered by a 14V adapter (should be 12V but we didn't have any lying around), +12V (brown) to the 'P' pin of the LED board, and GND (blue) to the 'G' pin. They are connected to the 'in' array of pins, and then the 'out' array of the first LED board connects to the 'in' array of the second LED board.

			Then, the Arduino's D2/D4/D5 pins are connected to the first LED board (then through the shift register and onwards to the second LED board) and control the LEDs in such a way that they switch colors using some nice animation when the state changes.

	=Spacestate publishing=		=Spacestate publishing=

Sjors Gielen op 29 okt 2022 om 13:55

2022-10-29T13:55:56Z

← Oudere versie		Versie van 29 okt 2022 13:55
Regel 9:		Regel 9:
	=Spacestate Switch=		=Spacestate Switch=

	[[Bestand:Spacestate-measure.jpg\|miniatuur\|267x267px\|State measurement wires. Green = GND, connected to the bottom of the state switch. Yellow is where the Arduino measures, connected to the top of the state switch and with an internal pull-up resistor.]]		[[Bestand:Spacestate-measure.jpg\|miniatuur\|267x267px\|State measurement wires. Green = GND, connected to the bottom of the state switch. Yellow is where the Arduino measures, connected to the top of the state switch and with an internal pull-up resistor. Also, in the top left of the picture, one of the two LED drivers is visible.]]

	The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.		The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.

Sjors Gielen op 29 okt 2022 om 13:50

2022-10-29T13:50:14Z

← Oudere versie		Versie van 29 okt 2022 13:50
Regel 8:		Regel 8:

	=Spacestate Switch=		=Spacestate Switch=

			[[Bestand:Spacestate-measure.jpg\|miniatuur\|267x267px\|State measurement wires. Green = GND, connected to the bottom of the state switch. Yellow is where the Arduino measures, connected to the top of the state switch and with an internal pull-up resistor.]]

	The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.		The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.
Regel 16:		Regel 18:

	The state of the switch is measured by pulling the bottom to ground (green wire in the image to the right), and then measuring the voltage at the top using the D5 pin with an internal pull-up (yellow wire). This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.		The state of the switch is measured by pulling the bottom to ground (green wire in the image to the right), and then measuring the voltage at the top using the D5 pin with an internal pull-up (yellow wire). This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.
	[[Bestand:Spacestate-measure.jpg\|miniatuur\|267x267px\|State measurement wires. Green = GND, connected to the bottom of the state switch. Yellow is where the Arduino measures, connected to the top of the state switch and with an internal pull-up resistor.]]
	Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.		Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.

Sjors Gielen op 29 okt 2022 om 13:49

2022-10-29T13:49:55Z

← Oudere versie		Versie van 29 okt 2022 13:49
Regel 15:		Regel 15:
	Originally the Arduino Nano was powered by its USB connection, but it's connected via a very long USB cable and the range extenders are iffy, so it receives only ~3.8V over USB. Therefore, the Arduino is now powered from the LED board (~10V) through its Vin port, where a linear regulator transforms it to 5V (or it should, but it actually seems to produce 6V for some reason).		Originally the Arduino Nano was powered by its USB connection, but it's connected via a very long USB cable and the range extenders are iffy, so it receives only ~3.8V over USB. Therefore, the Arduino is now powered from the LED board (~10V) through its Vin port, where a linear regulator transforms it to 5V (or it should, but it actually seems to produce 6V for some reason).

	The state of the switch is measured by pulling the bottom to ground, and then measuring the voltage at the top using the D3 pin with an internal pull-up. This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.		The state of the switch is measured by pulling the bottom to ground (green wire in the image to the right), and then measuring the voltage at the top using the D5 pin with an internal pull-up (yellow wire). This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.
			[[Bestand:Spacestate-measure.jpg\|miniatuur\|267x267px\|State measurement wires. Green = GND, connected to the bottom of the state switch. Yellow is where the Arduino measures, connected to the top of the state switch and with an internal pull-up resistor.]]
	Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.		Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.

Sjors Gielen op 29 okt 2022 om 13:44

2022-10-29T13:44:54Z

← Oudere versie		Versie van 29 okt 2022 13:44
Regel 1:		Regel 1:
			[[Bestand:Spacestate.jpg\|200px\|thumb\|right\|This is our Spacestate Switch. It's currently red, indicating that the space is closed.]]

	Hackerspace Nijmegen joins in a worldwide collaboration between hackerspaces to publish their Space State, i.e. whether they are open or not, in [https://spaceapi.io a standardized format].		Hackerspace Nijmegen joins in a worldwide collaboration between hackerspaces to publish their Space State, i.e. whether they are open or not, in [https://spaceapi.io a standardized format].

Regel 6:		Regel 8:

	=Spacestate Switch=		=Spacestate Switch=

	~~This is our Spacestate Switch:~~

	~~TODO: insert image~~

	The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.		The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.

Sjors Gielen op 29 okt 2022 om 13:40

2022-10-29T13:40:06Z

← Oudere versie		Versie van 29 okt 2022 13:40
Regel 5:		Regel 5:
	__TOC__		__TOC__

	= Spacestate Switch =		=Spacestate Switch=

	This is our Spacestate Switch:		This is our Spacestate Switch:
Regel 21:		Regel 21:
	Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.		Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.

	= Spacestate publishing =		=Spacestate publishing=

	The bar computer (barometer) runs a `screen` session running `scripts/serial2irc.py` which is online as an IRC bot, and listens to the serial port. When it receives "OPEN\n" or "CLOSED\n", it prints the relevant message as a NOTICE to the IRC channel. Also, it calls the shell script which publishes to the website.		The bar computer (barometer) runs a `screen` session running `scripts/serial2irc.py` which is online as an IRC bot, and listens to the serial port. When it receives "OPEN\n" or "CLOSED\n", it prints the relevant message as a NOTICE to the IRC channel. Also, it calls the shell script which publishes to the website.

	The shell script produces the JSON from its arguments and uploads it to the website. The last JSON uploaded is available at `scripts/state.json`.		The shell script produces the JSON from its arguments and uploads it to the website. The last JSON uploaded is available at `scripts/state.json`.

			The Wiki contains a small piece of Javascript which pulls the space state from the URL above, and adds one of two PNGs below the logo: https://hackerspacenijmegen.nl/state/wiki-state.js

Sjors Gielen: Nieuwe pagina aangemaakt met 'Hackerspace Nijmegen joins in a worldwide collaboration between hackerspaces to publish their Space State, i.e. whether they are open or not, in [https://spaceapi.io a standardized format]. The URL where we publish the Hackerspace Nijmegen Spacestate is https://hackerspacenijmegen.nl/state/state.json. TOC = Spacestate Switch = This is our Spacestate Switch: TODO: insert image The Spacestate Switch was never documented, so this is an attempt to revers...'

2022-10-29T13:38:22Z

Nieuwe pagina aangemaakt met 'Hackerspace Nijmegen joins in a worldwide collaboration between hackerspaces to publish their Space State, i.e. whether they are open or not, in [https://spaceapi.io a standardized format]. The URL where we publish the Hackerspace Nijmegen Spacestate is https://hackerspacenijmegen.nl/state/state.json. __TOC__ = Spacestate Switch = This is our Spacestate Switch: TODO: insert image The Spacestate Switch was never documented, so this is an attempt to revers...'

Nieuwe pagina

Hackerspace Nijmegen joins in a worldwide collaboration between hackerspaces to publish their Space State, i.e. whether they are open or not, in [https://spaceapi.io a standardized format].

The URL where we publish the Hackerspace Nijmegen Spacestate is https://hackerspacenijmegen.nl/state/state.json.

__TOC__

= Spacestate Switch =

This is our Spacestate Switch:

TODO: insert image

The Spacestate Switch was never documented, so this is an attempt to reverse engineer it. The physical device above was donated by SA007 (I think), and the controller was developed by Themba. I don't know whether there are still any copies of the source code.

The controller is powered by an Arduino Nano, which measures whether the huge switch is turned off or on, and communicates it to the LED controllers and via USB serial to the barcomputer (barometer) by sending "OPEN\n" or "CLOSED\n".

Originally the Arduino Nano was powered by its USB connection, but it's connected via a very long USB cable and the range extenders are iffy, so it receives only ~3.8V over USB. Therefore, the Arduino is now powered from the LED board (~10V) through its Vin port, where a linear regulator transforms it to 5V (or it should, but it actually seems to produce 6V for some reason).

The state of the switch is measured by pulling the bottom to ground, and then measuring the voltage at the top using the D3 pin with an internal pull-up. This will be ground when the space is OPEN (the two sides connect), and internal pull-up when the space is CLOSED.

Then, the D2/D4/D5 control the LEDs in such a way that they switch colors using some nice animation when the state changes.

= Spacestate publishing =

The bar computer (barometer) runs a `screen` session running `scripts/serial2irc.py` which is online as an IRC bot, and listens to the serial port. When it receives "OPEN\n" or "CLOSED\n", it prints the relevant message as a NOTICE to the IRC channel. Also, it calls the shell script which publishes to the website.

The shell script produces the JSON from its arguments and uploads it to the website. The last JSON uploaded is available at `scripts/state.json`.