Hive Smart LED Bulb Teardown

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 At first, to obtaining access to the internal electronics, we had to remove the Edison cap using a small screwdriver. 



Yet took apart something similar in the past, the top of the bulb (made of PC/ or something PP) was sawed off to reveal the LED lighting PCB. Two  screws can be found, when unscrewed allow the Whole Electronic Parts  to slide out from the top. 


So now we had the LED Smart body part.


Components can be seen on the top side, including a transformer, several capacitors of different types, SMD components, and inductors. The top side of the PCB(on the left) also shows a Wi-Fi module that is connected to the main PCB via a slot that contains solder contacts.


The underside of the PCB shows many SMD components including a rectifier (ON Semiconductor’s MB10S), several unidentifiable ICs (3C2DN and TXD17), and plenty of passive components. The slot for the Wi-Fi module can also be found with solder contacts.



The Wi-Fi module on the Hive Bulb is based around NXP’s JN5169 wireless microcontroller. This microcontroller, a 32-bit RSIC CPU, features 512kB of embedded flash, 4kB of EEPROM, 32kB RAM, SPI, ADC, I2C, and many other peripherals. The controller is also suitable for applications involving ZigBee, compliant with 2.4 GHz IEEE802.15.4, and can allow for OTA updating.

The Wi-Fi module has many stitching via around the floodplains which are used to help mitigate against EM emissions whereas the antenna has no plains at all nearby (plains would absorb the Wi-Fi signals). I am not good at these function. 

Any one can help.




Courtesy of All About Circuits, Digikey.