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by mrloopex 2 days ago
How did you get the epoxy off the ESP? I use a mill but I only have a 30% success rate.
1 comments
Ductapemaster 2 days ago
No need — I simply plugged into the exposed programming header on the gateway.

The sensor has an Atmel SAMD part which I assume has the security bit set. I didn't need to dump that firmware directly as it exists within the gateway flash.

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mrloopex 2 days ago
The gateway had an open debug port?!?!
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Ductapemaster 1 hour ago
The 8266 has no flash readout protection, and the UART is exposed on a programming header. It was very easy to dump the firmware.
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