Title: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Markus Gritsch on February 10, 2015, 09:10:37 pm
Post by: Markus Gritsch on February 10, 2015, 09:10:37 pm
[attachment=4]
Hi,
I built a prototype for a WiFi controllable LED light, using the popular ESP8266 module running the NodeMCU firmware [1]. To allow controlling the WS2812B LEDs from Lua, I extended the firmware with a bit of C code [2].
The YouTube video shows it in action: http://youtu.be/oTnsXuxRcE8 (http://youtu.be/oTnsXuxRcE8)
Please find all necessary files attached. Note that the pre-built firmware uses 115200 as the default baud rate.
Have fun,
Markus
[1] https://github.com/nodemcu/nodemcu-firmware (https://github.com/nodemcu/nodemcu-firmware)
[2] http://www.esp8266.com/viewtopic.php?f=21&t=1143 (http://www.esp8266.com/viewtopic.php?f=21&t=1143)
Hi,
I built a prototype for a WiFi controllable LED light, using the popular ESP8266 module running the NodeMCU firmware [1]. To allow controlling the WS2812B LEDs from Lua, I extended the firmware with a bit of C code [2].
The YouTube video shows it in action: http://youtu.be/oTnsXuxRcE8 (http://youtu.be/oTnsXuxRcE8)
Please find all necessary files attached. Note that the pre-built firmware uses 115200 as the default baud rate.
Have fun,
Markus
[1] https://github.com/nodemcu/nodemcu-firmware (https://github.com/nodemcu/nodemcu-firmware)
[2] http://www.esp8266.com/viewtopic.php?f=21&t=1143 (http://www.esp8266.com/viewtopic.php?f=21&t=1143)
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Sleepwalker3 on February 14, 2015, 09:59:23 am
Post by: Sleepwalker3 on February 14, 2015, 09:59:23 am
Nice work as always Markus
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Markus Gritsch on February 14, 2015, 10:37:25 am
Post by: Markus Gritsch on February 14, 2015, 10:37:25 am
Thx :)
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Woddi1402 on February 25, 2015, 12:36:00 pm
Post by: Woddi1402 on February 25, 2015, 12:36:00 pm
Hi Markus,
first I must congratulate you for this idea. I've looked at the circuit and would like to recreate this. I just wonder with which the PIN WS2812B from the ESP-01 is controlled?
Hallo Markus,
erstmal muss ich dich beglückwünschen für diese Idee. Ich habe mir die Schaltung angeschaut und würde diese gerne nachbauen. Ich frage mich nur mit welchem PIN der WS2812B vom ESP-01 angesteuert wird?
first I must congratulate you for this idea. I've looked at the circuit and would like to recreate this. I just wonder with which the PIN WS2812B from the ESP-01 is controlled?
Hallo Markus,
erstmal muss ich dich beglückwünschen für diese Idee. Ich habe mir die Schaltung angeschaut und würde diese gerne nachbauen. Ich frage mich nur mit welchem PIN der WS2812B vom ESP-01 angesteuert wird?
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Markus Gritsch on February 25, 2015, 02:09:14 pm
Post by: Markus Gritsch on February 25, 2015, 02:09:14 pm
On the ESP-01 you can use either GPIO0 or GPIO2. On ESP modules with more GPIO pins broken out also the other pins. You specify the pin which should be used as first argument of the function-call which sets the LED colors.
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Woddi1402 on March 01, 2015, 07:35:55 pm
Post by: Woddi1402 on March 01, 2015, 07:35:55 pm
Hi,
I am a beginner, can you tell me what this text means. Which file to be opened
NodeMCU 0.9.5 build 20150127 powered by Lua 5.1.4
192.168.4.1 255.255.255.0 192.168.4.1
> open
PANIC: unprotected error in call to Lua API (server.lua:21: open a file first)
ets Jan 8 2013,rst cause:4, boot mode:(3,7)
wdt reset
load 0x40100000, len 31712, room 16
tail 0
chksum 0x0a
load 0x3ffe8000, len 2872, room 8
tail 0
chksum 0x06
load 0x3ffe8b40, len 13644, room 8
tail 4
chksum 0x1a
csum 0x1a
r?
NodeMCU 0.9.5 build 20150127 powered by Lua 5.1.4
192.168.4.1 255.255.255.0 192.168.4.1
>
I am a beginner, can you tell me what this text means. Which file to be opened
NodeMCU 0.9.5 build 20150127 powered by Lua 5.1.4
192.168.4.1 255.255.255.0 192.168.4.1
> open
PANIC: unprotected error in call to Lua API (server.lua:21: open a file first)
ets Jan 8 2013,rst cause:4, boot mode:(3,7)
wdt reset
load 0x40100000, len 31712, room 16
tail 0
chksum 0x0a
load 0x3ffe8000, len 2872, room 8
tail 0
chksum 0x06
load 0x3ffe8b40, len 13644, room 8
tail 4
chksum 0x1a
csum 0x1a
r?
NodeMCU 0.9.5 build 20150127 powered by Lua 5.1.4
192.168.4.1 255.255.255.0 192.168.4.1
>
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Markus Gritsch on March 01, 2015, 08:42:38 pm
Post by: Markus Gritsch on March 01, 2015, 08:42:38 pm
Do you have uploaded the file index.html?
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: Woddi1402 on March 02, 2015, 07:28:54 am
Post by: Woddi1402 on March 02, 2015, 07:28:54 am
Many Thanks!
I did not know that this file must be uploaded. Now everything works. Super program.
Thanks again.
hats off
I did not know that this file must be uploaded. Now everything works. Super program.
Thanks again.
hats off
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: reini12 on April 07, 2015, 09:22:05 am
Post by: reini12 on April 07, 2015, 09:22:05 am
Hi Markus,
super manual. I have the server.lua and the index.html copied to the ESP8266 with the esplorer. Then I start the new ESP. Now, a new AP appears to me wifi 192.168.4.1 is the name. I connect with this and then try the address 192.168.4.1 to call. However, it is then the page is not available. What am I doing wrong? Did it several times on the ESP copied result remains the same.
Hallo Markus,
super Anleitung. Ich habe die server.lua und die index.html auf den ESP8266 mit dem esplorer kopiert. Danach starte ich den ESP neu. Nun wird mir auch ein neuer AP angezeigt wifi 192.168.4.1 heißt der. Ich verbinde mich mit diesem und versuche dann die Adresse 192.168.4.1 auf zu rufen. Es kommt jedoch dann die Seite ist nicht verfügbar. Was mache ich falsch? Habe es schon mehrfach auf den ESP kopiert Ergebnis bleibt aber das selbe.
super manual. I have the server.lua and the index.html copied to the ESP8266 with the esplorer. Then I start the new ESP. Now, a new AP appears to me wifi 192.168.4.1 is the name. I connect with this and then try the address 192.168.4.1 to call. However, it is then the page is not available. What am I doing wrong? Did it several times on the ESP copied result remains the same.
Hallo Markus,
super Anleitung. Ich habe die server.lua und die index.html auf den ESP8266 mit dem esplorer kopiert. Danach starte ich den ESP neu. Nun wird mir auch ein neuer AP angezeigt wifi 192.168.4.1 heißt der. Ich verbinde mich mit diesem und versuche dann die Adresse 192.168.4.1 auf zu rufen. Es kommt jedoch dann die Seite ist nicht verfügbar. Was mache ich falsch? Habe es schon mehrfach auf den ESP kopiert Ergebnis bleibt aber das selbe.
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: ledfreak3d on July 21, 2015, 12:34:51 pm
Post by: ledfreak3d on July 21, 2015, 12:34:51 pm
im probably a noob but the 2 bin files how do i flash them using esp flasher or upload them via esptool ?
Title: Re: WiFi LED Light (ESP8266 + WS2812B + Lua)
Post by: ElectricMonkey on March 28, 2016, 10:35:59 am
Post by: ElectricMonkey on March 28, 2016, 10:35:59 am
[quote author="Wroddi1402"]Many Thanks!
I did not know that this file must be uploaded. Now everything works https://skinnyexpress.com/phen375-review-and-results (https://skinnyexpress.com/phen375-review-and-results) thanks to Phen375. Super program.
Thanks again.
hats off[/quote]
Holy cow that's awesome Markus. I've been wanting to make something like this as a lamp for a while now. Think I'll give it a go now. Thanks.
I did not know that this file must be uploaded. Now everything works https://skinnyexpress.com/phen375-review-and-results (https://skinnyexpress.com/phen375-review-and-results) thanks to Phen375. Super program.
Thanks again.
hats off[/quote]
Holy cow that's awesome Markus. I've been wanting to make something like this as a lamp for a while now. Think I'll give it a go now. Thanks.