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Aiyato E14 CozyLife Homekit RGBCW LED Bulb Cloud-Free: ESP8684H2, DOIT ESPC2-05, OpenESP32C2

divadiow  4 462 Cool? (+4)
📢 Listen (AI):
Quick look at an Aiyato CozyLife Homekit bulb I bought in November 2024 and forgot about. https://www.aliexpress.com/item/1005006367930047.html

Aiyato CozyLife RGB+CW E14 LED bulb with WiFi control and HomeKit support

Aiyato SMART Candle Light box with colorful bulb image and QR codes Side of Aiyato CozyLife bulb box with specs and feature icons visible. White box for Aiyato VA1005-1 LED bulb with barcode and pairing instructions. Side of CozyLife bulb packaging with manufacturer data and CE markings

AIYATO E14 5W RGB+2700~6500K bulb with technical specs printed on casing Candle-style E14 LED bulb with QR code on white body, placed on textured carpet Disassembled C37 Homekit module and round LED board with SMD components LED light bulb PCB with labeled parts A1–A5 and surface-mounted components RGBCW LED PCB with labeled connection pins and surface LEDs on blue surface LED bulb circuit board with BP2516F chip, capacitors, coil, and surface-mounted components Close-up of LED bulb power module with capacitors, inductor, and SMD components Close-up of PCB from a smart bulb showing BP2516F chip, coil and capacitors

C37 homekit module - I had to de-can it to check the chip. Couldn't see much about it Googling - ESP8684H2

Top view of ESP8684 module on LED bulb PCB

It's a DOIT (Doctors of Intelligence & Technology) ESPC2-05 module (datasheet attached)

Pinout diagram of ESPC2-05 module with labeled functions and antenna area

TX0 log at 74880 baud:

Code: Text
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With IO9 low:

esptool chip info
Code: Text
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like other Aiyato/CozyLife ESP devices, this is not flash encrypted or secure boot enabled

Code: Text
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flash backup
Code: Text
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flash 2mb ESP32-C2 OpenESP32C2
Code: Text
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OpenESP32C2 initial boot
Code: Text
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And with GPIO Dr PWM channels are quickly identified

Code: JSON
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Web GUI for OpenESP32C2 with LED control sliders and device diagnostic info
About Author
divadiow
divadiow wrote 3765 posts with rating 642 , helped 314 times. Live in city Bristol. Been with us since 2023 year.

Comments

jarekgol 13 Aug 2025 23:35

Link to ali does not work, 404 [Read more]

divadiow 14 Aug 2025 08:00

works for me. try searching for product code 1005006367930047 in your Ali [Read more]

p.kaczmarek2 14 Aug 2025 09:14

@divadiow thank you for interesting presentation, so, ESP32 was not encrypted, since it's not a Matter device? Nice. Does it get hot quickly when on full brightness? @jarekgol Link to product, when... [Read more]

divadiow 14 Aug 2025 15:23

toasty. this is with powersave 1 https://obrazki.elektroda.pl/8250514200_1755177816_thumb.jpg [Read more]

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