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Trying to identify an IC

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keithr0
Guest

Mon Jul 29, 2019 2:45 pm   



I'm trying to identify an IC, it is a small DIL chip with 8 pins. The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?

Phil Allison
Guest

Tue Jul 30, 2019 12:45 am   



keithr0 wrote:
Quote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


Quote:
The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what part of the device uses it.

Location, location ....



..... Phil

keithr0
Guest

Tue Jul 30, 2019 11:45 am   



On 7/30/2019 9:17 AM, Phil Allison wrote:
Quote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what part of the device uses it.

Location, location ....


You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA

Phil Allison
Guest

Tue Jul 30, 2019 1:45 pm   



keithr0 wrote:
Quote:

Phil Allison wrote:


I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what part of the device uses it.

Location, location ....


You wish is my command


** Cripes, am I in an episode of " Bewitched" ?


Quote:
- the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA


** Maybe YOU can...

That is heaps of info that is bit outside my field.

Likely it will help others here, though.


.... Phil

Chris
Guest

Wed Jul 31, 2019 12:45 am   



keithr0:
Quote:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA


"This link has expired."

--
Chris

--
--
Cheers,

Chris.

FMurtz
Guest

Wed Jul 31, 2019 12:45 am   



keithr0 wrote:
Quote:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA
https://send.firefox.com/notFound.01d8b1d9.svg


keithr0
Guest

Wed Jul 31, 2019 11:45 am   



On 7/31/2019 9:32 AM, Chris wrote:
Quote:
keithr0:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA

"This link has expired."

--
Chris

Try this one, it should last 7 days


https://send.firefox.com/download/caf2e2c05cd260b3/#HkaWkwVudJXiG7i4bcgvLg

Phil Allison
Guest

Thu Aug 01, 2019 12:45 am   



keithr0 wrote:
Quote:


** Try somewhere else that is not so fussy.

I cannot see that link either, "browser not supported".



..... Phil

Clocky
Guest

Wed Sep 11, 2019 3:45 am   



On 31/07/2019 6:20 pm, keithr0 wrote:
Quote:
On 7/31/2019 9:32 AM, Chris wrote:
keithr0:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA


"This link has expired."

--
Chris

Try this one, it should last 7 days

https://send.firefox.com/download/caf2e2c05cd260b3/#HkaWkwVudJXiG7i4bcgvLg


Crikey, it's like you don't want to be helped. Without seeing that chip
it's probably a MOSFET.

Should be pretty easy to work out from the board location, what it's
connected to and signals present in any event.

--

keithr0
Guest

Thu Sep 12, 2019 12:45 pm   



On 9/11/2019 12:24 PM, Clocky wrote:
Quote:
On 31/07/2019 6:20 pm, keithr0 wrote:
On 7/31/2019 9:32 AM, Chris wrote:
keithr0:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S, which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out
what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA


"This link has expired."

--
Chris

Try this one, it should last 7 days

https://send.firefox.com/download/caf2e2c05cd260b3/#HkaWkwVudJXiG7i4bcgvLg


Crikey, it's like you don't want to be helped.


It says above that the link will last 7 days, it's now nearly 6 weeks on
so it's not surprising that it's no longer there.

> Without seeing that chip it's probably a MOSFET.

In an 8 pin chip, unlikely.
Quote:

Should be pretty easy to work out from the board location, what it's
connected to and signals present in any event.


I could use my 'scope, but there is unisolated 240v floating around, if
I really need to, I'll buzz out the circuit.

Clocky
Guest

Fri Sep 13, 2019 1:45 am   



On 12/09/2019 7:35 pm, keithr0 wrote:
Quote:
On 9/11/2019 12:24 PM, Clocky wrote:
On 31/07/2019 6:20 pm, keithr0 wrote:
On 7/31/2019 9:32 AM, Chris wrote:
keithr0:
On 7/30/2019 9:17 AM, Phil Allison wrote:
keithr0 wrote:

I'm trying to identify an IC, it is a small DIL chip with 8 pins.


** So SMD or not?


The
only identification is "BJUACA", it has 8 pins, and in the relevant
circuit pins 5 thru 8 are shorted together. A search on Google shows
nothing.

Any ideas?


** It would be an idea to tell us where you found this IC plus what
part of the device uses it.

Location, location ....

You wish is my command - the device that it is part of is a Medion
MD 93225 WiFi controlled plug/socket. The controller is a TWYE2S,
which
is an ESP8266E chip mounted on a little sub-board. That chip drives a
relay through an HY1D transistor to switch the socket. It also has an
HLW8012 chip that measures voltage and current on the socket.

The thing is programmed to use a shitty cloud app, I want to reprogram
the ESP8266 so I can control it directly, but I need to work out
what is
connected to what.

You can see the chip and its surroundings here

https://send.firefox.com/download/9e350a0989f13faf/#LqUis8g3F0cFw7ZchWSfoA


"This link has expired."

--
Chris

Try this one, it should last 7 days

https://send.firefox.com/download/caf2e2c05cd260b3/#HkaWkwVudJXiG7i4bcgvLg


Crikey, it's like you don't want to be helped.

It says above that the link will last 7 days, it's now nearly 6 weeks on
so it's not surprising that it's no longer there.


People clearly had trouble accessing it in the first place and it makes
no sense to have that limit in the first place.

Quote:
Without seeing that chip it's probably a MOSFET.

In an 8 pin chip, unlikely.


They are pretty common. Since you clearly don't want to be helped, good
luck with it.



Quote:

Should be pretty easy to work out from the board location, what it's
connected to and signals present in any event.

I could use my 'scope, but there is unisolated 240v floating around, if
I really need to, I'll buzz out the circuit.



--

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