What hardware is inside the Tuya E27 A60 RGBCCT bulb?
It uses a BK7231T (WB2L) Wi-Fi SoC on a silicone-sealed PCB and drives five LED channels via PWM pins 26, 24, 6, 8, 7 [Elektroda, ferbulous, post #20195414]
[BK7231T] E27 A60-Bulb LED RGBCCT
TL;DR
- Tuya E27 A60-Bulb LED RGBCCT uses a BK7231T (WB2L) chip.
- Silicone seals the PCB, making teardown difficult without destroying the case.
- Cloudcutter can flash it OTA using the Generic Profile - E27 A60 RGBCWW.
- The pinout lists PWM outputs on pins 26, 24, 6, 8, and 7.
- A defective power supply causes random 1-second restarts and flicker; stock firmware restores the previous state, but OpenBK turns it off.
Generated by the language model.
This is a short teardown of the E27 A60-Bulb LED RGBCCT which is based on BK7231T
Basic Informations:
Brand: Tuya
Model: E27 A60-Bulb LED RGBCCT
Chip: BK7231T (WB2L)
Vendor: https://shopee.com.my/product/68463208/6454092983?smtt=0.5847450-1663473183.9
Got it discounted from a local marketplace, but I'm pretty sure the same bulb is available in aliexpress provided it's in the same packaging as below.
My unit was sold as defect bulb, apparently there's a defect with the power supply that causes the board to restart and flicker for 1 sec that happens randomly but not frequent.
Is there a way to have to turn it back on from previous state/color/brightness when the random restart occurs?
On stock firmware, it does resume when that happens but it just turns off on openbk.
The pcb is sealed with silicone which makes it difficult to tear down this bulb without destroying the case.
It's recommended to flash using cloudcutter, you can flash it via ota by selecting Generic Profile - E27 A60 RGBCWW
Pinout:
Pin 26: PWM 1
Pin 24: PWM 2
Pin 6: PWM 3
Pin 8: PWM 4
Pin 7: PWM 5
Basic Informations:
Brand: Tuya
Model: E27 A60-Bulb LED RGBCCT
Chip: BK7231T (WB2L)
Vendor: https://shopee.com.my/product/68463208/6454092983?smtt=0.5847450-1663473183.9
Got it discounted from a local marketplace, but I'm pretty sure the same bulb is available in aliexpress provided it's in the same packaging as below.
My unit was sold as defect bulb, apparently there's a defect with the power supply that causes the board to restart and flicker for 1 sec that happens randomly but not frequent.
Is there a way to have to turn it back on from previous state/color/brightness when the random restart occurs?
On stock firmware, it does resume when that happens but it just turns off on openbk.
The pcb is sealed with silicone which makes it difficult to tear down this bulb without destroying the case.
It's recommended to flash using cloudcutter, you can flash it via ota by selecting Generic Profile - E27 A60 RGBCWW
Pinout:
Pin 26: PWM 1
Pin 24: PWM 2
Pin 6: PWM 3
Pin 8: PWM 4
Pin 7: PWM 5
Comments
Thank you for the article. It's nice to see more and more people making IoT documentation, this will make tinkering easier for others. This is a very good news, there are many hobbyists who can't... [Read more]
This seems to be the only smart bulb that I've bought with the pcb sealed in Thanks! Until that feature is added, is there an example for a script that would save any changes anytime I toggle the... [Read more]
Reminds me of YLDP02YL https://www.elektroda.pl/rtvforum/topic3899403.html No need for hackery, development version 1.12.57 is up. It should save RGB, temperature, brightness and mode (RGB or CW).... [Read more]
I do have another xiaomi bulbs, it does feel heavier than tuya bulbs probably due to silicon seal Thanks for the new update! Will update later today That would be great. When you mentioned it... [Read more]
Just tested it and it restored back the last light state, thanks! Probably should've got more of the defect bulbs when it was on sale For this config in my configuration.yml, do I still need to check... [Read more]
I'm glad it helped! Ok, regarding the resets, there is already a setting for that: https://obrazki.elektroda.pl/3244670400_1663602350_thumb.jpg (also notice the uptime!) The setting is called... [Read more]