Make Ceiling Lights great again

GitHubRepository

State as of 2017-01-01 (he)

Original work by: xro

6 Ceiling lights
4 neon lights
2 LED strip neon replacements
2 5-wire 230V cables connect the lights to a self-made relay box
Each ceiling light
shares Earth and N
has it’s separate L
relay box contains
1x 4-channel opto-isolator relay 5V/230V , switchable with 3.3V IO, pull low to GND to switch
1x 2-channel opto-isolator relay 5V/230V , switchable with 3.3V IO, pull low to GND to switch
Lasercut-Box with Light-Switches on wall
offers 6 2-way up/down switches
offers 3 push-buttons
–> 15 buttons
contains Teensy 3.0 µC (??)
contains RF433 transmitter
Teensy µC
reads 15 buttons
controls RF433 tx
has 6 unused gpio prepared to switch ceiling light directly
firmware takes rf433 cmds on /dev/ttyACM0
firmware reports buttons and takes gpio-to-set-states on /dev/ttyACM1
firmware also switches currently unconnected gpio directly
Relay-Box is connected to RaspberryPi1’s GPIOS running as licht.realraum.at
5V to VDD
3V3 to VCC
gpio4, gpio23, gpio18, gpio17, gpio22, gpio21
RaspberryPi1
- installed in carton box on shelf above passage
- powered by USB-Multi-Charger
- runs golightctrl
  - switches ceiling lights via GPIO
  - which provides Webserver to switch lights
  - reads Buttons from teensy
  - knows ceiling light states from GPIO
  - sends RF433 cmds directly via teensy or sends request to send to arduino on mursat shelf via MQTT

Current Problems

if raspberryPi1 dies or has problems, light can not be switched
teensy Firmware logic for gpios LOW == ON needs to be changed
switching ceiling light power on/off is probably not as quick or nice-to-look-at as having planned ESP8266 based H801 do it

Project FancyLights

Working on it: xro

Plan is to replace all the power-sucking neon-ceiling-lights with LED strip lights. Furthermore white-light color-temperature should be adjustable. For party and effect purposes the ceiling lights should be dialable to any colour. To accomplish this, 2 LED strips will be installed in each ceiling light. 2.5m RGB+CoolWhite and 3m WarmWhite LED Strip for each light. They will be controled with a ESP8266 based H801 for each light. Thus we can choose colour and white-colour-temp for each light.

ThePlan ThePlan

Comment 1 (xof): the fuse switches Basic- and fancy lights!
Comment 2 (xof): the power supply of the basic lights have severe distortions/interferences on the power lines! So we added a filter on 2025-02-11 see Elektrik

Status: All materials bought, H801 deilvered, awaiting delivery of LEDs and power supplies

TODO

(done) verify H801 can be flashed with Sming firmware
(skipped) connect 2.5m RGB-CW and 3m WW LEDs to H801 and test with default firmware
(done) Measure power consumption of LED-Driver

power consumption in soft-off (H801 stays powered): ~0.36W
power consumption in all-on: 62.4W
10m ColdWhite, max duty: 29.1W
10m Blue, max duty: 28.7W
10m Red, max duty: 35.6W
10m Green, max duty: 25W
10m RGB, max duty: 59.8W
10m RGB+CW, max duty, 5m each on a 74W Powersupply: 66.6W (Netzteile am Anschlag)
10m WarmWhite, max duty, 5m each on a74W Powersupply: 61.4W (Netzteile am Anschlag)
10m RGB+CW+WW, Strip1+2,max duty, 5m each on a 74W Powersupply: 124W (Netzteile am Anschlag)
5m RGB on Powersupply1 + 5m CW on Powersupply2: 74W
5m RGB on Powersupply1 (74W) + 5m CW+WW on Powersupply2 (74W): 44.4W
5m RG+WW on Powersupply1 (74W) + 5m B+CW on Powersupply2 (74W): 76W
–> RGB+CW Strip1 pro Meter: max(44.4/5,66.6/10)=max(8.88,6.66) = 8.88W/m
–> WW Strip2 pro Meter: 61.4W/10 = 6.1W/m
RGB+CW Strip1 60LED/m laut Verkäufer: 11.52W/m
WW Strip2 60LED/m laut Verkäufer: 14.4w/m

(done)test WIFI reception of H801 in ceiling light without installing it permanently. Test various possibly installation locations to improve WIFI reception. e.g. put H801 outside light-metal-casing and under gypsum-ceiling plates or outside light-metal-casing and visible next to light.

tested in Leinwand/Mitgliederregal Ceiling Light, which is known to have worst WiFi reception from years ago TP-link Test.

Works Flawlessly :)

(done) reflash and write new trusted firmware for H801, so that it can be controlled via MQTT and remembers a default light-setting

see HackADay-Artikle
see OpenSource Firmware for H801
see esp8266 Forum
see Protocol Documentation
see Ready Made MQTT Firmware
(check) use Sming
(check) use Sming new PWM Lib with compile flag
(done) on power-on default-light setting is used
(done) MQTT commands
- action/ceilingN/light {“r”:int, “g”:int, “b”:int, “cw”:int, “ww”:int} | N={1..6,All}, int={0..1000}
  - optional: “flash”:True or “flash”:{“repetitions”:x, “cc”:[topic2, topic3, …]}
  - optional: “fade”:True or “fade”:{“duration”:ms, “cc”:[topic2, topic3, …]}
  - specifiyng cc will forward the json message to the next topic in the list after the effect has finished or was interrupted
- action/ceilingN/defaultlight {“r”:int, “g”:int, “b”:int, “cw”:int, “ww”:int} | N={1..6,All}, int={0..1000}
(done) provide backup interface. e.g. telnet
(done) backup telnet interface

(done) test in dry state

startup behaviour: PWM pins start in INPUT direction, all channels except R- light up for 700ms \ –> prefer solution where H801 soft-disables the LEDs and itself stays powered versus being powered on/off constantly
startup behaviour: configured default light state apply’s really fast after about y1.4s (not after blinking due to INPUT direction though)
WIFI connection (with DHCP) works really fast. takes about ⇐6s
MQTT works really well
Telnet configuration works really well
spiffs flash-time pre-configuration works really well 4.(done) test in indirect ceiling illumination configuration
Strip1 (RGB+CW) width: 12mm
Strip2 (WW) width: 9.5mm
all in all not bright enough for that and not diffuse enough

(done) test in ceiling light enclosure

WIFI works really well, surprisingly no problem

(done) Testinstall one in ceiling light

installed in middle-membeshelp light. Splice power from Lasercutter CeilingLight
3m Warm White (6 individul strips)
2.5m RGB+Coldwhite (6 individual strips)
Things learned
- prefer splice WarmWhite from VCC, not from V+ where it passes the PCB
- Red and Green is switched on RGB+CW Strip
- vor-Auflegen funktioniert nicht gut → aufzeichnen
- use 12mm 5pin clip-connectors for 12mm wide 5pin RGBW Led strip (not 10mm) → ordered 12mm
- some connector cables are too short → need to be extended –> ordered longer ones
- use extra double sided tape at ends
- cut closer to 55cm than 60cm, keep away from edges light wise
- keep switching power supplies away from WiFi H801
- WarmWhite Strip needs to split. Looses brightness after 1.5m → T-Connectors ordered
- arrange power supply in corner of edges, where they don’t cast shadow if possible
- arrange H801 in center when possible

(almost done) change golightctrl so it can control H801
(1/6 done) install in ceiling lights
put CW-LEDs currently in one ceiling lights into MaSha

WW-LEDs in all Ceiling lights as Simple-Light RGB+CW+WW-Fancy-Lights int all Ceiling lights

modify 20W RGB+WW Flodding Lights with H801 and indirectly illuminate ceiling

Project BasicLights

Plan: separate lights which work really really reliably

Working on it: equinox

Status: WIP