EspNowSkip - Revision history

Kartoffel: /* Software */

2022-12-03T13:36:35Z

Software

← Older revision		Revision as of 13:36, 3 December 2022
Line 63:		Line 63:

	== Software ==		== Software ==

			<span style="padding: 5px; border: 2px solid darkred; background-color: orange; font-size: large; font-weight: bold;">The protocol detailed here is outdated and has been replaced by the system described on [[ESP-Now]].</span>

	=== Source code ===		=== Source code ===

Bertrik Sikken: /* Software */

2020-06-22T09:37:19Z

Software

← Older revision		Revision as of 09:37, 22 June 2020
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	It contains the following programs:		It contains the following programs:
	* <b>skipbutton.ino</b>: an Arduino program running on the button part (~~slave,~~ on an ESP8266) which sends the skip message		* <b>skipbutton.ino</b>: an Arduino program running on the button part (on an ESP8266) which sends the skip message
	* <b>skipreceiver.ino</b>: an Arduino program running on the receiver part (~~master,~~ on an ESP32) which receives the skip message		* <b>skipreceiver.ino</b>: an Arduino program running on the receiver part (on an ESP32) which receives the skip message

	=== EspNowSkip protocol ===		=== EspNowSkip protocol ===
	It works like this:		It works like this:
	* there are two roles:		* there are two roles:
	** a single central ~~"master"~~ node		** a single central node
	** one or more ~~"slave"~~ skip-buttons		** one or more skip-buttons
	* when the skip button is pressed, the ESP8266 resets and starts running, reads the last known ESP-Now channel and MAC address from EEPROM and sends the "SKIP" message		* when the skip button is pressed, the ESP8266 resets and starts running, reads the last known ESP-Now channel and MAC address from EEPROM and sends the "SKIP" message
	** if the skip button doesn't receive an ACK from the central node, it starts a kind of discovery to re-establish the channel and MAC address of the central node		** if the skip button doesn't receive an ACK from the central node, it starts a kind of discovery to re-establish the channel and MAC address of the central node
	* the central node is configured as an AP with a specific name (e.g. "espnow-revspace")		* the central node is configured as an AP with a specific name (e.g. "espnow-revspace")
	* the discovery procedure tries to find the central node by doing an AP scan, the AP name is the only thing that needs to be agreed upon in advance between ~~master~~ and ~~slave code~~		* the discovery procedure tries to find the central node by doing an AP scan, the AP name is the only thing that needs to be agreed upon in advance between central receiver and button
	** in the list of the APs, the ~~slave~~ node finds the SSID belonging to the central node, then it also knows the wifi channel and MAC address of the central node		** in the list of the APs, the button node finds the SSID belonging to the central node, then it also knows the wifi channel and MAC address of the central node
	** the ~~slave~~ node stores both wifi channel and MAC address in (emulated) EEPROM and goes back to sleep		** the button node stores both wifi channel and MAC address in (emulated) EEPROM and goes back to sleep

	The data we send is an MQTT-like topic + message, for example		The data we send is an MQTT-like topic + message, for example

Kartoffel: Lijstje

2020-02-09T16:47:31Z

Lijstje

Show changes

Bertrik Sikken: /* Future */

2019-07-30T07:05:19Z

Future

← Older revision		Revision as of 07:05, 30 July 2019
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	* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor		* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor
	* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]. Need to know at least the following:		* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]. Need to know at least the following:
	** exact model number of e-ink display, it says "2.9inch e-paper display (296x128pixels)" on https://wiki.sha2017.org/w/Projects:Badge#What_is_on_the_badge but no model number		** exact model number of e-ink display, it says "2.9inch e-paper display (296x128pixels)" on https://wiki.sha2017.org/w/Projects:Badge#What_is_on_the_badge but no model number, might be DEPG0290B01 2.9" e-paper display (296x128) according to https://orga.sha2017.org/index.php?title=Projects:Badge#Hardware
	* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.		* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.

Bertrik Sikken: /* Future */

2019-07-30T07:03:40Z

Future

← Older revision		Revision as of 07:03, 30 July 2019
Line 180:		Line 180:
	More distant future, nice to have:		More distant future, nice to have:
	* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor		* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor
	* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]. Need to know at the following:		* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]. Need to know at least the following:
	** exact model number of e-ink display, it says "2.9inch e-paper display (296x128pixels)" on https://wiki.sha2017.org/w/Projects:Badge#What_is_on_the_badge but no model number		** exact model number of e-ink display, it says "2.9inch e-paper display (296x128pixels)" on https://wiki.sha2017.org/w/Projects:Badge#What_is_on_the_badge but no model number
	* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.		* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.

Bertrik Sikken: /* Future */

2019-07-30T07:03:20Z

Future

← Older revision		Revision as of 07:03, 30 July 2019
Line 180:		Line 180:
	More distant future, nice to have:		More distant future, nice to have:
	* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor		* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor
	* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]		* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]. Need to know at the following:
			** exact model number of e-ink display, it says "2.9inch e-paper display (296x128pixels)" on https://wiki.sha2017.org/w/Projects:Badge#What_is_on_the_badge but no model number
	* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.		* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.

Bertrik Sikken: /* Future */

2019-07-30T05:21:42Z

Future

← Older revision		Revision as of 05:21, 30 July 2019
Line 176:		Line 176:
	* put it in a nicer case (ceiling cavia watches you skip)		* put it in a nicer case (ceiling cavia watches you skip)
	* fix issue in ESP now receiver that causes it to miss messages when two ESP now messages are sent in quick succession		* fix issue in ESP now receiver that causes it to miss messages when two ESP now messages are sent in quick succession
	* add more buttons besides just skipping!		* add more buttons besides just skipping, see above

	More distant future:		More distant future, nice to have:
	* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor		* use ESP-Now also for other kinds of hacker space infrastructure where low-power consumption is important and/or a power wire is inconvenient: spark shack temperature for example -> basically this works already, see https://github.com/bertrik/espnowsensor
	* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ~~easy~~-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]		* send data back to the skip button, for example we could send a "now playing" message or album art back to a SHA2017 badge and have it shown on its e-ink display. Complication: there is no ready-to-use Arduino implementation of the e-ink display. Might be worth taking a [https://github.com/krzychb/esp-epaper-29-dke look here]
	* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.		* <strike>add a supercap to the skip button, to allow a short press (e.g. 100 ms) to also be registered -> I have various types in my Samla (e.g. 0.1F 5.5V).</strike>.Not needed.

Bertrik Sikken: /* Future */

2019-07-30T05:18:39Z

Future

← Older revision		Revision as of 05:18, 30 July 2019
Line 175:		Line 175:
	To do in the immediate future:		To do in the immediate future:
	* put it in a nicer case (ceiling cavia watches you skip)		* put it in a nicer case (ceiling cavia watches you skip)
			* fix issue in ESP now receiver that causes it to miss messages when two ESP now messages are sent in quick succession
	* add more buttons besides just skipping!		* add more buttons besides just skipping!

Bertrik Sikken: /* Usage */

2019-07-05T15:11:38Z

Usage

← Older revision		Revision as of 15:11, 5 July 2019
Line 16:		Line 16:

	The principle of operation is that the skip button (ESP8266) sends an ESP-Now packet to the skip receiver (ESP32 SHA badge), the skip receiver forwards it to the revspace MQTT, yet another script then performs the actual skip on the audio system.		The principle of operation is that the skip button (ESP8266) sends an ESP-Now packet to the skip receiver (ESP32 SHA badge), the skip receiver forwards it to the revspace MQTT, yet another script then performs the actual skip on the audio system.

	~~TODO: modify the espnow NOMZ-button with the power hack (diode from battery directly to 3.3V rail)~~

	== Introduction ==		== Introduction ==

Bertrik Sikken: /* Usage */

2019-07-05T15:11:14Z

Usage

← Older revision		Revision as of 15:11, 5 July 2019
Line 9:		Line 9:

	== Usage ==		== Usage ==
	~~It's a~~ button ~~that you can press~~.		Press the button to skip to the next song, or start playing when nothing was playing yet.

	Usage:		Usage: