ESP32 WS2812b Clock

Experimenting with this incredible low-priced WS2812b 241-LED disk.

I found that feeding it enough power required some work. When the inner rings are starved for power they behave erratically. The wiring shipped with the 241-LED disk, connected daisy chain, doesn't work reliably with the breadboard power scheme I used in the past for the 93-LED disks. I soldered in the sort of bus bar connections I used in the graduation cap project and now all the LEDs behave reliably: https://github.com/Mark-MDO47/ESP32WS2812bClock/blob/main/images/LED_241_busPower.jpg

Dimensions of the disk are here: https://github.com/Mark-MDO47/ESP32WS2812bClock/blob/main/images/LED_241_Dimensions.jpg

With 241 LEDs, the RAM requirements exceed my old standby of Arduino Nano. I chose the ESP32.

Parts List

Parts List so far

Num	CostEach	CostTotal	Description	Source
1	$29.99	$29.99	241 LEDs 9 Rings WS2812B 5050 RGB LED	https://smile.amazon.com/gp/product/B083VWVP3J/
1	$5.16	$5.16	ESP32 ESP-32S CP2102 NodeMCU-32S ESP-WROOM-32 WiFi Unassembled	https://smile.amazon.com/gp/product/B08DQQ8CBP/
0	$6.00	$0.00	ESP32 ESP-32S CP2102 NodeMCU-32S ESP-WROOM-32 WiFi	https://smile.amazon.com/DORHEA-Development-Microcontroller-NodeMCU-32S-ESP-WROOM-32/dp/B086MJGFVV/
1	$4.45	$4.45	UBEC 3Amp	https://smile.amazon.com/2-Pieces-Hobbywing-Switch-mode-UBEC-Helicopter-Quadcopter/dp/B01GHMW0C0
1	$0.40	$0.40	SN74HCT125N quadruple bus buffer and voltage translator	https://www.digikey.com/product-detail/en/texas-instruments/SN74HCT125N/296-8386-5-ND/376860
1	$0.10	$0.10	10K Ohm resistor, 1/4 watt	https://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF14JT10K0/1741265
1	$0.10	$0.10	0.1 uF electrolytic capacitor	https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860010672001/5728608
1	$0.53	$0.53	100 uF electrolytic capacitor	https://www.digikey.com/en/products/detail/panasonic-electronic-components/ECA-2AM101/245067